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20 Best Audit Support Outsourcing Companies (2026)

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Jun 10, 2026
Ann
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Audit work has a way of piling up quickly. One request turns into ten, supporting documents need to be tracked down, and internal teams often find themselves juggling audit preparation alongside their regular responsibilities. For many businesses, the challenge is not the audit itself but the amount of administrative and financial work that surrounds it.

That is one reason audit support outsourcing has become a practical option for companies of different sizes. External providers can assist with document management, account reconciliations, financial reporting support, compliance-related tasks, and communication throughout the audit process. Some organizations use outsourcing to handle seasonal workload spikes, while others rely on dedicated teams year-round. In this article, we look at audit support outsourcing companies that provide services designed to help businesses stay organized, meet deadlines, and reduce the pressure that audits can place on internal finance and accounting teams.

1. NeoWork

At NeoWork, we work with CPA firms and internal audit teams that need additional capacity for audit-related work without expanding their internal headcount. Our teams support financial statement audits, internal control reviews, compliance activities, and a range of accounting tasks that often sit behind a successful audit process. In practice, that can mean helping organize documentation, preparing financial records, handling reconciliations, or supporting reporting requirements that auditors rely on during engagements.

Many firms find that audit workloads do not stay consistent throughout the year. One quarter may be relatively quiet, while another requires extra hands to keep projects moving. We provide support across bookkeeping, accounting, payroll, tax preparation, and audit functions so teams can adjust resources as needs change. Alongside audit support services, NeoWork is also known for a 91% annualized teammate retention rate and a 3.2% candidate selectivity rate, which helps maintain continuity on long-term projects where process knowledge matters.

Key Highlights:

  • Audit support for CPA firms and internal audit departments
  • Assistance with financial statement audits
  • Support for internal control and compliance audits
  • Bookkeeping and accounting operations support
  • Flexible staffing for changing audit workloads
  • Teams integrated into existing client workflows

Services:

  • Audit support outsourcing
  • Financial statement audit support
  • Internal control audit support
  • Compliance audit assistance
  • Bookkeeping
  • Accounting support
  • Tax preparation support
  • Payroll processing

Contact Information:

2. RSM

RSM provides outsourced accounting support for businesses that need help managing financial processes while keeping their focus on day-to-day operations. Their work covers bookkeeping, financial reporting, tax-related accounting tasks, and cooperation with auditors during financial statement reviews. The company works with both local businesses and organizations operating across multiple countries, where accounting requirements often involve different reporting standards and regulations.

RSM supports companies during audit periods by preparing financial statements, maintaining accounting records, managing asset registers, and assisting with documentation required by auditors. They also place a strong focus on digital tools, using workflow systems, cloud-based document management, and accounting automation to support finance teams and improve access to financial information.

Key Highlights:

  • Accounting outsourcing services for local and international companies
  • Support for cooperation with external auditors
  • Financial reporting under Polish and international standards
  • Flexible service structure based on business needs

Services:

  • Audit support
  • Bookkeeping
  • Financial statement preparation
  • VAT reporting and registers
  • Fixed asset accounting
  • Accounting policy implementation
  • Income tax calculations

Contact Information:

  • Website: www.rsm.global
  • E-mail: emails@rsmindia.in
  • Facebook: www.facebook.com/GlobalRSM 
  • Twitter: x.com/RSM_co
  • LinkedIn: www.linkedin.com/company/rsm-co
  • Instagram: www.instagram.com/rsmindia
  • Address: 301-307,Technopolis Knowledge Park, MIDC, Andheri East, Mumbai – 400 093
  • Phone: 022 6108 5555

3. Grant Thornton

Grant Thornton offers accounting support services that can be used when internal finance teams need additional resources or specialist assistance. Their support is often used during periods of increased workload, organizational changes, accounting corrections, or situations where key accounting personnel are unavailable.

Their audit-related support is closely connected to accounting accuracy and financial record maintenance. Grant Thornton assists with accounting reviews, reconstruction of accounting records, document processing, and consultations on accounting matters. The company also supports businesses that need help organizing accounting data before audits or resolving issues identified during financial reviews.

Key Highlights:

  • Support for selected accounting processes
  • Assistance during staff absences and workload peaks
  • Accounting reconstruction for prior periods
  • Accounting consultations and advisory support
  • Cooperation with internal accounting teams

Services:

  • Audit support
  • Accounting process outsourcing
  • Accounting supervision
  • Posting accounting documents
  • Fixed asset accounting
  • Bank transfer preparation
  • Accounting consultations

Contact Information:

  • Website: www.grantthornton.co.uk
  • LinkedIn: www.linkedin.com/company/grant-thornton-uk
  • Instagram: www.instagram.com/gt_trainees
  • Address: Royal Liver Building, Liverpool, L3 1PS 
  • Phone: +44 (0)151 224 7200

4. Finnovative Consulting

Finnovative Consulting focuses on outsourced audit support for accounting and audit firms that need help managing audit workloads. Their team works with audit documentation and working papers, allowing auditors to spend less time on routine audit preparation and more time on review and client-facing responsibilities. They concentrate specifically on audit-related processes rather than broader accounting outsourcing.

Finnovative Consulting assists with audit testing, risk assessment procedures, control documentation, and reviews of non-judgmental audit areas such as cash, receivables, payables, expenses, revenue, and journal entries. They also support the documentation of internal controls and procedures used to evaluate control environments.

Key Highlights:

  • Focus on outsourced audit support
  • Support for external and internal audit activities
  • Review of audit working papers
  • Assistance with risk assessment procedures
  • Control documentation support
  • Qualified audit-focused teams

Services:

  • Audit support outsourcing
  • External audit support
  • Internal audit support
  • Audit working paper preparation
  • Audit working paper review
  • Risk assessment support
  • Audit testing
  • Journal entry testing

Contact Information:

  • Website: finnovative.co.uk
  • E-mail: edward@worldwellness.group
  • Facebook: www.facebook.com/people/Finnovative-Consulting/61560670633629
  • LinkedIn: www.linkedin.com/company/jgi-consulting-limited
  • Address: 124 City Road, London, EC1V 2NX
  • Phone: +44 7541 770050

5. AcoBloom

AcoBloom works with accounting and audit firms that need additional support during audit engagements. Their audit support services cover both the preparation and review stages of the audit process, helping firms manage large volumes of documentation while maintaining consistency across audit files.

Their services include preparing audit working papers, completing audit checklists, reviewing financial statements, following up on audit queries, and supporting file review processes. AcoBloom also works with a range of accounting and audit software platforms, allowing their teams to fit into existing workflows without requiring major process changes.

Key Highlights:

  • Audit support for accounting and audit firms
  • Assistance with audit file preparation and maintenance
  • Support for automated and manual audit systems
  • Financial statement review support
  • Audit query follow-up assistance

Services:

  • Audit support outsourcing
  • Audit file roll-forward services
  • Audit working paper preparation
  • Financial statement review
  • Audit documentation management
  • Client query follow-up
  • Error reporting support

Contact Information:

  • Website: www.acobloom.com
  • E-mail: usa@acobloom.com
  • Facebook: www.facebook.com/AcoBloomInternational
  • Twitter: x.com/acobloom
  • LinkedIn: www.linkedin.com/company/acobloom-international
  • Instagram: www.instagram.com/acobloom_international
  • Address: B176/175, Bannerghatta Road Dollars Colony, Phase 4, J. P Nagar, Bengaluru, Karnataka 560076
  • Phone: +1 (415) 969-7987

6. TGG Accounting

TGG Accounting provides outsourced finance and accounting services for businesses that want additional structure around financial reporting and internal financial processes. Their model combines several accounting roles into a single outsourced team, allowing businesses to access accounting management, financial oversight, reporting support, and operational finance resources through one engagement.

Although TGG Accounting does not perform external audits, their work can help businesses maintain organized financial records and reporting practices that support audit readiness. They focus on financial reporting, cash flow management, operational reporting, internal controls, and GAAP-aligned accounting processes. Their approach is built around ongoing collaboration with either existing accounting teams or businesses that need a fully outsourced finance function.

Key Highlights:

  • Outsourced finance and accounting teams
  • Support for GAAP-aligned reporting
  • Collaboration with in-house accounting staff
  • Focus on financial reporting and controls
  • Operational reporting and forecasting capabilities

Services:

  • Outsourced accounting
  • Financial reporting support
  • Operational reporting
  • Cash flow forecasting
  • Outsourced CFO services
  • Controller services
  • Financial consulting

Contact Information:

  • Website: tgg-accounting.com
  • E-mail: info@tgg-accounting.com
  • Facebook: www.facebook.com/TGGaccounting
  • Twitter: x.com/TGGAcctg
  • LinkedIn: www.linkedin.com/company/tgg-accounting
  • Instagram: www.instagram.com/tgg_accounting
  • Address: 21750 Hardy Oak Blvd, Ste 104 PMB 63328, San Antonio, TX 78258-4946
  • Phone: (760) 697-1033

7. Befree

Befree delivers audit support services for accounting firms, auditors, and finance teams that need additional capacity during busy periods. Their team works alongside client firms, following established procedures and workflows rather than replacing existing audit processes. The focus is on helping firms keep audit projects moving while maintaining consistency across documentation and review work.

Beyond financial statement audits, Befree supports compliance audits, review engagements, risk assessment activities, and audit workpaper preparation. The company also combines technology with manual review processes, using automation for routine processing tasks while keeping experienced professionals involved in review, documentation, and final audit support activities. Their services are designed to integrate with the tools and systems already used by audit firms.

Key Highlights:

  • Support for financial statement audits
  • Assistance with compliance audits and review engagements
  • Dedicated audit support teams
  • Integration with client workflows and software
  • Combination of automation and manual review processes

Services:

  • Audit support outsourcing
  • Financial statement audit support
  • Compliance audit support
  • Review engagement support
  • Audit planning assistance
  • Risk assessment support
  • Audit workpaper preparation

Contact Information:

  • Website: befreeltd.com
  • E-mail: info@befreeltd.com
  • Facebook: www.facebook.com/people/Befree-Global/100088891985988
  • Twitter: x.com/infobefreeltd
  • LinkedIn: www.linkedin.com/company/befree-pty-ltd
  • Instagram: www.instagram.com/befree_global
  • Address: Gift House, 3rd Floor, Gift SEZ, Gift City Gandhinagar, Gujarat 382355, India

8. JAC Outsourcing

JAC Outsourcing provides audit support services for businesses preparing for internal audits, external audits, and compliance reviews. Their team works alongside internal departments and auditors to keep audit processes organized, helping companies manage documentation requirements, financial records, and communication throughout the audit cycle.

Their support extends beyond preparation alone. JAC Outsourcing assists before, during, and after audits, covering areas such as internal control reviews, risk analysis, evidence management, compliance reporting, and corrective action planning.

Key Highlights:

  • Support for internal and external audits
  • Assistance with regulatory compliance reviews
  • Internal control assessment services
  • Risk and gap analysis support
  • Auditor coordination and communication

Services:

  • Audit support outsourcing
  • Pre-audit preparation
  • Document review and organization
  • Internal control assessment
  • Risk analysis
  • Gap identification
  • Auditor liaison support

Contact Information:

  • Website: www.jac-outsourcing.co.id
  • E-mail: indonesia@jac-outsourcing.co.id 
  • LinkedIn: www.linkedin.com/company/jacgroup
  • Address: Millennium Centennial Center, 6th Floor, Jl. Jend. Sudirman Kav. 25, Jakarta Selatan 12920 
  • Phone: +62 21 3970 3646 

9. Leinonen

Leinonen is an accounting and financial management company that works with international businesses. While its main focus is accounting, payroll, taxation, and reporting, these services also play an important role in helping companies maintain accurate financial records and prepare for audit requirements.

A fully digital workflow is part of how Leinonen delivers its services, allowing financial information and documentation to be managed efficiently across different locations. Their combination of accounting, management reporting, and tax support can help businesses keep financial records organized and accessible when auditors, regulators, or stakeholders require additional review.

Key Highlights:

  • Focus on international companies
  • Accounting and financial management services
  • Digital document and workflow processes
  • Support for local compliance requirements
  • Management reporting capabilities

Services:

  • Accounting services
  • Payroll management
  • Taxation support
  • Management reporting
  • Company registration assistance
  • Financial administration support

Contact Information:

  • Website: leinonen.eu
  • E-mail: contact@leinonen.eu
  • LinkedIn: www.linkedin.com/company/leinonen-group
  • Address: Leinonen Bulgaria EOOD bul. "Vitosha" 44, 1000 Sofia, Bulgaria
  • Phone: +359 2 983 2198

10. Corient Business Solutions

Corient Business Solutions provides outsourced audit support for UK accounting firms that need additional resources during audit engagements. Their services are structured around UK auditing and accounting requirements, allowing firms to extend capacity without changing their existing audit methodology. The company works within client systems and processes, supporting audit teams rather than replacing them.

Their audit support covers statutory audits, audit working papers, risk-based testing, compliance requirements, and file preparation. Corient also incorporates technology into its delivery model, combining audit professionals with automation tools to reduce time spent on repetitive tasks while maintaining established review and approval processes. The service is designed to fit into existing audit workflows with minimal disruption.

Key Highlights:

  • Audit support tailored to UK accounting firms
  • Alignment with UK auditing and accounting standards
  • Support for risk-based audit approaches
  • Integration with existing audit workflows
  • Use of audit technology and automation tools

Services:

  • Audit support outsourcing
  • Statutory audit support
  • Audit working paper preparation
  • Risk assessment support
  • Audit testing
  • Financial statement testing
  • Compliance support

Contact Information:

  • Website: corientbs.co.uk
  • E-mail: info@corientbs.co.uk
  • Facebook: www.facebook.com/Corientb
  • LinkedIn: www.linkedin.com/company/corient-business-solutions-limited
  • Instagram: www.instagram.com/corientbs
  • Address: The Techno Centre, Puma Way, Coventry, CV1 2TT, United Kingdom
  • Phone: +44 24 7610 3333

11. IRIS

IRIS delivers audit outsourcing services for accountancy firms that need additional audit capacity without expanding their internal teams. Their audit support covers the full audit cycle, allowing firms to bring in external resources for planning, fieldwork, testing, reporting, and final review activities.

Their team supports audits across different types of organizations, including companies, charities, and other regulated entities. Beyond core audit procedures, IRIS assists with internal control reviews, data analysis, audit evidence gathering, final adjustments, and audit reporting tasks. The service is designed to fit into existing workflows while supporting compliance with common accounting and auditing frameworks.

Key Highlights:

  • End-to-end audit support
  • Support for multiple audit methodologies
  • Work with existing audit software platforms
  • Assistance across all audit stages
  • Internal control assessment support

Services:

  • Audit planning
  • Audit file preparation
  • Sampling procedures
  • Vouching
  • Verification testing
  • Audit fieldwork support
  • Audit evidence collection
  • Schedule preparation

Contact Information:

  • Website: www.iris.co.uk
  • Facebook: www.facebook.com/IRISSoftwareGroup
  • Twitter: x.com/IRISSoftwareGrp
  • LinkedIn: www.linkedin.com/company/iris-software-group
  • Instagram: www.instagram.com/irissoftwaregroup
  • Address: 4th Floor, Heathrow Approach, 470 London Road, Slough, SL3 8QY 
  • Phone: 0344 815 5555

12. Clearcut Outsourcing

Clearcut Outsourcing works primarily with audit and accounting firms that need additional resources for audit delivery. Their model allows firms to add remote or on-site audit professionals to existing teams, with support available at different levels ranging from assistant auditors to senior managers. They provide different engagement options depending on how much of the audit process a firm wants to outsource.

Their services include audit planning, risk assessment, substantive testing, internal control testing, analytical procedures, audit completion work, and review activities. Clearcut Outsourcing also offers complete audit outsourcing arrangements where they handle the process from planning through to audit completion, while working under the direction and requirements of the client firm.

Key Highlights:

  • Audit support for accounting and audit firms
  • Remote and on-site audit resources
  • Multiple staffing levels available
  • Internal and external audit support
  • Flexible engagement models

Services:

  • Audit outsourcing
  • Staff secondment
  • Full-time audit resource support
  • Internal audit services
  • Audit planning
  • Risk assessment support
  • Substantive testing

Contact Information:

  • Website: www.clearcutoutsourcing.com
  • E-mail: info@clearcutoutsourcing.com
  • Address: 418 Broadway, Ste 4808,Albany, NY 12207, USA 
  • Phone: +1 (646) 632-1355 

13. Staria

Staria provides accounting outsourcing and financial management services for companies operating across multiple countries. Their work is centered on creating consistent financial processes, reporting structures, and accounting practices across subsidiaries and business units.

The company supports businesses through accounting, reporting, payroll, taxation, and financial management services delivered across a broad international network. Staria also works with companies that need group-level reporting and IFRS-related support, areas that often require careful coordination during audits and financial reviews.

Key Highlights:

  • International accounting support across multiple countries
  • Consolidated financial reporting capabilities
  • Single point of contact model
  • Technology-driven financial management processes
  • Support for growing and multi-entity organizations

Services:

  • Accounting outsourcing
  • Financial reporting
  • Group accounting support
  • IFRS consulting
  • Global accounting services
  • Payroll services
  • Taxation support

Contact Information:

  • Website: www.staria.com
  • E-mail: info@staria.com 
  • Facebook: www.facebook.com/stariasuomi
  • Twitter: x.com/StariaGroup
  • LinkedIn: www.linkedin.com/company/staria-oyj
  • Instagram: www.instagram.com/stariagroup
  • Address: 400 Thames Valley Park Drive, Reading Berkshire, RG6 1PT 
  • Phone: +44 118 214 7809

14. Monk Tax Solutions

Monk Tax Solutions delivers outsourced audit support for accounting firms and businesses that need additional resources during audit periods. Their services are focused on helping organizations manage audit workloads, review financial information, organize audit files, and prepare documentation required for audit engagements. They work across different stages of the audit process, from initial preparation through post-audit follow-up activities.

Their team assists with audit file management, financial statement reviews, compliance checks, risk assessments, and audit documentation. Monk Tax Solutions also supports firms that want to move from spreadsheet-based audit processes to more structured digital workflows. They place attention on confidentiality procedures and ongoing communication throughout engagements.

Key Highlights:

  • Audit support for accounting firms and businesses
  • Financial statement review assistance
  • Audit file migration and management support
  • Risk assessment and compliance review services
  • Focus on secure handling of financial information

Services:

  • Audit support outsourcing
  • Internal audit support
  • Audit file roll-forward services
  • Audit document migration
  • Financial statement reviews
  • Audit checklist preparation
  • Error identification and reporting

Contact Information:

  • Website: monktaxsolutions.com
  • E-mail: Info@monktaxsolutions.com
  • Facebook: www.facebook.com/people/Monk-Tax-Solutions/61556071330895
  • Twitter: x.com/Monktaxsolution
  • LinkedIn: www.linkedin.com/company/monk-tax-solutions
  • Instagram: www.instagram.com/monktaxsolutions
  • Address: 71-75 Shelton Street, Covent Garden, London, WC2H 9JQ, United Kingdom
  • Phone: 0207-183-5625

15. CapActix

CapActix provides outsourced audit support services for CPA firms and accounting firms that require assistance with different types of audit engagements. Their work covers financial statement audits, compliance audits, forensic audits, internal audits, and other audit-related activities.

CapActix assists with trial balance mapping, materiality calculations, audit evidence verification, internal control testing, substantive testing, financial statement preparation, and compliance reviews. They also support firms that are moving from spreadsheet-based audit processes to dedicated audit software platforms.

Key Highlights:

  • Support for multiple audit types
  • Structured approach covering planning, execution, and finalization
  • Assistance with audit software migration

Services:

  • Audit support outsourcing
  • Financial statement audits
  • Internal audits
  • SOX compliance audits
  • Forensic audits
  • Compliance audits
  • IRS audit support

Contact Information:

  • Website: www.capactix.com
  • E-mail: biz@capactix.com
  • Facebook: www.facebook.com/Capactix
  • Twitter: x.com/CapActix
  • LinkedIn: www.linkedin.com/company/capactix-business-solutions
  • Instagram: www.instagram.com/capactixbusiness
  • Address: 503 Mohammad Noor Talib Building, Khalid Bin Walid road, Opp Royal Ascot Hotel, Dubai, UAE
  • Phone: +971 58-249-7106

16. HaysMac

HaysMac offers outsourced accounting and finance support for businesses that need help managing reporting obligations, financial records, and compliance requirements. While their services are broader than audit support alone, they work with organizations that need reliable accounting processes and accurate financial information, both of which are important when preparing for audits and regulatory reviews.

Their team supports bookkeeping, management accounting, VAT compliance, statutory accounts preparation, and financial advisory work. HaysMac works with businesses at different stages of growth, including scale-ups, established companies, and organizations entering the UK market.

Key Highlights:

  • Outsourced accounting and finance support
  • Experience working with growing and established businesses
  • Support for statutory reporting requirements
  • Sector-focused financial expertise
  • Flexible delivery model

Services:

  • Bookkeeping
  • Management accounts preparation
  • Accounting outsourcing
  • VAT compliance support
  • Statutory accounts preparation
  • Financial reporting
  • Advisory services

Contact Information:

  • Website: haysmac.com
  • E-mail: contact@haysmac.com
  • LinkedIn: www.linkedin.com/company/haysmac
  • Instagram: www.instagram.com/lifeat_haysmac
  • Address: 10 Queen Street Place, London EC4R 1AG
  • Phone: 020 7969 5500

17. KMK Ventures

KMK Ventures delivers outsourced audit support for CPA firms that need additional resources during periods of increased audit activity. Their approach is centered on extending internal audit teams with offshore professionals who assist with documentation-heavy tasks, allowing firms to manage larger audit volumes without expanding permanent headcount. 

Their audit support covers a range of activities that are often time-consuming for audit teams, including reconciliations, workpaper preparation, tie-outs, testing support, and audit documentation. KMK Ventures works within the client's audit methodology and reporting process, helping firms maintain consistency while reducing pressure on internal staff during busy periods.

Key Highlights:

  • Audit support designed for CPA firms
  • Offshore audit staffing model
  • Assistance during seasonal workload peaks
  • Support for multiple audit engagements
  • Integration with existing audit procedures

Services:

  • Audit workpaper preparation
  • Financial statement tie-outs
  • Audit support outsourcing
  • Audit documentation support
  • Sampling support
  • Testing assistance
  • Lead schedule preparation

Contact Information:

  • Website: kmkventures.com
  • E-mail: info@kmkventures.com
  • Facebook: www.facebook.com/kmk.ventures
  • LinkedIn: www.linkedin.com/company/kmk-ventures-pvt-ltd
  • Instagram: www.instagram.com/kmk.ventures
  • Address: 300, Sankalp Square-3B Sindhu Bhavan Marg, Ahmedabad, Gujarat 380058
  • Phone: 91-98240-42996

18. KPMG

KPMG provides audit and assurance services for organizations that need independent reviews of financial information, internal controls, technology environments, and regulatory reporting. The company works with businesses across different industries, supporting financial statement audits as well as broader assurance engagements that help organizations address reporting and compliance requirements.

Their audit practice combines traditional audit work with analytical tools and technology platforms that assist with reviewing large volumes of financial data. In addition to financial audits, KPMG supports ESG reporting assurance, IT attestation services, internal control assessments, and other assurance engagements where independent verification is required. 

Key Highlights:

  • Financial audit and assurance services
  • ESG reporting assurance capabilities
  • IT audit and attestation services
  • Technology-enabled audit processes
  • Multidisciplinary audit teams

Services:

  • Financial statement audits
  • Financial statement reviews
  • Assurance services
  • ESG assurance
  • Sustainability report verification
  • IT audit services
  • IT attestation services

Contact Information:

  • Website: kpmg.com
  • Facebook: www.facebook.com/KPMG 
  • Twitter: x.com/kpmguk
  • LinkedIn: www.linkedin.com/company/kpmg-uk
  • Address: 66 Queen Square, BS1 4BE , Bristol, UK  
  • Phone: +44 (0)117 905 4200

19. Outbooks

Outbooks offers audit and assurance support services for accounting firms and businesses that need additional help with audit preparation, testing, documentation, and reporting activities. Their service is designed to support audit teams during busy periods while helping maintain consistency across audit files and supporting documentation.

Their support covers both audit execution and risk advisory activities. Outbooks assists with audit testing, lead schedules, analytical procedures, control testing, reconciliations, external confirmations, and audit documentation. The company also supports risk control assessments and control effectiveness reviews, making its services relevant for firms looking to strengthen both audit processes and internal controls.

Key Highlights:

  • Audit and assurance support services
  • Offshore audit support model
  • Risk advisory and control testing capabilities
  • Structured audit support process
  • Collaboration with onshore audit teams
  • Support for annual and statutory audit requirements

Services:

  • Audit support outsourcing
  • Audit testing
  • Control testing
  • Financial statement tie-outs
  • Lead schedule preparation
  • Analytical audit procedures
  • Substantive audit procedures

Contact Information:

  • Website: outbooks.co.uk
  • E-mail: info@outbooks.co.uk
  • Facebook: www.facebook.com/outbooksuk
  • Twitter: x.com/outbooksUK
  • LinkedIn: www.linkedin.com/company/outbooks
  • Instagram: www.instagram.com/outbooksuk
  • Address: Suite 18, Winsor & Newton Building, Whitefriars Avenue, Harrow HA3 5RN, London
  • Phone: +44 330 057 8597

20. Genpact

Genpact provides finance and accounting outsourcing services for organizations looking to improve financial operations, reporting processes, and compliance management. Although the company focuses on broader finance transformation rather than dedicated audit outsourcing, many of its services support the financial controls, reporting accuracy, and documentation standards that are important during audits and financial reviews.

The company works across areas such as accounts payable, record-to-report, financial planning and analysis, and invoice-to-cash processes. Genpact also incorporates automation, analytics, and AI-driven tools into finance operations, helping businesses manage large volumes of financial data while maintaining consistency across reporting and accounting activities.

Key Highlights:

  • Finance and accounting outsourcing services
  • Support for financial reporting and compliance processes
  • Record-to-report expertise
  • Financial planning and analysis capabilities

Services:

  • Finance and accounting outsourcing
  • Accounts payable services
  • Record-to-report services
  • Financial planning and analysis
  • Invoice-to-cash services
  • Financial reporting support

Contact Information:

  • Website: www.genpact.com
  • E-mail: DPO.Genpact@Genpact.com
  • Facebook: www.facebook.com/ProudToBeGenpact
  • Twitter: x.com/genpact
  • LinkedIn: www.linkedin.com/company/genpact
  • Address: Tower 9, 2nd floor Bellandure Village, Outer Ring Road Varthur, Bangalore - 560103 Karnataka
  • Phone: +91 9986901010

Conclusion

Audit work has become harder to manage with tighter deadlines, changing regulations, and ongoing staffing challenges. For many accounting firms and finance teams, outsourcing part of the audit process is no longer just a way to reduce workload. It has become a practical way to maintain consistency, improve turnaround times, and keep internal teams focused on higher-value work.

The companies on this list take different approaches. Some provide full audit support from planning through final review, while others focus on specific tasks such as workpapers, testing, compliance checks, or financial reporting. The right choice depends on how your team operates, where capacity gaps exist, and how much support you actually need.

A good outsourcing partner should fit into your existing workflow without creating extra complexity. Clear communication, strong quality controls, relevant audit experience, and secure handling of financial information matter far more than flashy promises. Taking the time to evaluate those factors can make a noticeable difference when audit season arrives and workloads start to build.

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20 Best Audit Support Outsourcing Companies (2026)

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Jun 10, 2026
Ann

Audit work has a way of piling up quickly. One request turns into ten, supporting documents need to be tracked down, and internal teams often find themselves juggling audit preparation alongside their regular responsibilities. For many businesses, the challenge is not the audit itself but the amount of administrative and financial work that surrounds it.

That is one reason audit support outsourcing has become a practical option for companies of different sizes. External providers can assist with document management, account reconciliations, financial reporting support, compliance-related tasks, and communication throughout the audit process. Some organizations use outsourcing to handle seasonal workload spikes, while others rely on dedicated teams year-round. In this article, we look at audit support outsourcing companies that provide services designed to help businesses stay organized, meet deadlines, and reduce the pressure that audits can place on internal finance and accounting teams.

1. NeoWork

At NeoWork, we work with CPA firms and internal audit teams that need additional capacity for audit-related work without expanding their internal headcount. Our teams support financial statement audits, internal control reviews, compliance activities, and a range of accounting tasks that often sit behind a successful audit process. In practice, that can mean helping organize documentation, preparing financial records, handling reconciliations, or supporting reporting requirements that auditors rely on during engagements.

Many firms find that audit workloads do not stay consistent throughout the year. One quarter may be relatively quiet, while another requires extra hands to keep projects moving. We provide support across bookkeeping, accounting, payroll, tax preparation, and audit functions so teams can adjust resources as needs change. Alongside audit support services, NeoWork is also known for a 91% annualized teammate retention rate and a 3.2% candidate selectivity rate, which helps maintain continuity on long-term projects where process knowledge matters.

Key Highlights:

  • Audit support for CPA firms and internal audit departments
  • Assistance with financial statement audits
  • Support for internal control and compliance audits
  • Bookkeeping and accounting operations support
  • Flexible staffing for changing audit workloads
  • Teams integrated into existing client workflows

Services:

  • Audit support outsourcing
  • Financial statement audit support
  • Internal control audit support
  • Compliance audit assistance
  • Bookkeeping
  • Accounting support
  • Tax preparation support
  • Payroll processing

Contact Information:

2. RSM

RSM provides outsourced accounting support for businesses that need help managing financial processes while keeping their focus on day-to-day operations. Their work covers bookkeeping, financial reporting, tax-related accounting tasks, and cooperation with auditors during financial statement reviews. The company works with both local businesses and organizations operating across multiple countries, where accounting requirements often involve different reporting standards and regulations.

RSM supports companies during audit periods by preparing financial statements, maintaining accounting records, managing asset registers, and assisting with documentation required by auditors. They also place a strong focus on digital tools, using workflow systems, cloud-based document management, and accounting automation to support finance teams and improve access to financial information.

Key Highlights:

  • Accounting outsourcing services for local and international companies
  • Support for cooperation with external auditors
  • Financial reporting under Polish and international standards
  • Flexible service structure based on business needs

Services:

  • Audit support
  • Bookkeeping
  • Financial statement preparation
  • VAT reporting and registers
  • Fixed asset accounting
  • Accounting policy implementation
  • Income tax calculations

Contact Information:

  • Website: www.rsm.global
  • E-mail: emails@rsmindia.in
  • Facebook: www.facebook.com/GlobalRSM 
  • Twitter: x.com/RSM_co
  • LinkedIn: www.linkedin.com/company/rsm-co
  • Instagram: www.instagram.com/rsmindia
  • Address: 301-307,Technopolis Knowledge Park, MIDC, Andheri East, Mumbai – 400 093
  • Phone: 022 6108 5555

3. Grant Thornton

Grant Thornton offers accounting support services that can be used when internal finance teams need additional resources or specialist assistance. Their support is often used during periods of increased workload, organizational changes, accounting corrections, or situations where key accounting personnel are unavailable.

Their audit-related support is closely connected to accounting accuracy and financial record maintenance. Grant Thornton assists with accounting reviews, reconstruction of accounting records, document processing, and consultations on accounting matters. The company also supports businesses that need help organizing accounting data before audits or resolving issues identified during financial reviews.

Key Highlights:

  • Support for selected accounting processes
  • Assistance during staff absences and workload peaks
  • Accounting reconstruction for prior periods
  • Accounting consultations and advisory support
  • Cooperation with internal accounting teams

Services:

  • Audit support
  • Accounting process outsourcing
  • Accounting supervision
  • Posting accounting documents
  • Fixed asset accounting
  • Bank transfer preparation
  • Accounting consultations

Contact Information:

  • Website: www.grantthornton.co.uk
  • LinkedIn: www.linkedin.com/company/grant-thornton-uk
  • Instagram: www.instagram.com/gt_trainees
  • Address: Royal Liver Building, Liverpool, L3 1PS 
  • Phone: +44 (0)151 224 7200

4. Finnovative Consulting

Finnovative Consulting focuses on outsourced audit support for accounting and audit firms that need help managing audit workloads. Their team works with audit documentation and working papers, allowing auditors to spend less time on routine audit preparation and more time on review and client-facing responsibilities. They concentrate specifically on audit-related processes rather than broader accounting outsourcing.

Finnovative Consulting assists with audit testing, risk assessment procedures, control documentation, and reviews of non-judgmental audit areas such as cash, receivables, payables, expenses, revenue, and journal entries. They also support the documentation of internal controls and procedures used to evaluate control environments.

Key Highlights:

  • Focus on outsourced audit support
  • Support for external and internal audit activities
  • Review of audit working papers
  • Assistance with risk assessment procedures
  • Control documentation support
  • Qualified audit-focused teams

Services:

  • Audit support outsourcing
  • External audit support
  • Internal audit support
  • Audit working paper preparation
  • Audit working paper review
  • Risk assessment support
  • Audit testing
  • Journal entry testing

Contact Information:

  • Website: finnovative.co.uk
  • E-mail: edward@worldwellness.group
  • Facebook: www.facebook.com/people/Finnovative-Consulting/61560670633629
  • LinkedIn: www.linkedin.com/company/jgi-consulting-limited
  • Address: 124 City Road, London, EC1V 2NX
  • Phone: +44 7541 770050

5. AcoBloom

AcoBloom works with accounting and audit firms that need additional support during audit engagements. Their audit support services cover both the preparation and review stages of the audit process, helping firms manage large volumes of documentation while maintaining consistency across audit files.

Their services include preparing audit working papers, completing audit checklists, reviewing financial statements, following up on audit queries, and supporting file review processes. AcoBloom also works with a range of accounting and audit software platforms, allowing their teams to fit into existing workflows without requiring major process changes.

Key Highlights:

  • Audit support for accounting and audit firms
  • Assistance with audit file preparation and maintenance
  • Support for automated and manual audit systems
  • Financial statement review support
  • Audit query follow-up assistance

Services:

  • Audit support outsourcing
  • Audit file roll-forward services
  • Audit working paper preparation
  • Financial statement review
  • Audit documentation management
  • Client query follow-up
  • Error reporting support

Contact Information:

  • Website: www.acobloom.com
  • E-mail: usa@acobloom.com
  • Facebook: www.facebook.com/AcoBloomInternational
  • Twitter: x.com/acobloom
  • LinkedIn: www.linkedin.com/company/acobloom-international
  • Instagram: www.instagram.com/acobloom_international
  • Address: B176/175, Bannerghatta Road Dollars Colony, Phase 4, J. P Nagar, Bengaluru, Karnataka 560076
  • Phone: +1 (415) 969-7987

6. TGG Accounting

TGG Accounting provides outsourced finance and accounting services for businesses that want additional structure around financial reporting and internal financial processes. Their model combines several accounting roles into a single outsourced team, allowing businesses to access accounting management, financial oversight, reporting support, and operational finance resources through one engagement.

Although TGG Accounting does not perform external audits, their work can help businesses maintain organized financial records and reporting practices that support audit readiness. They focus on financial reporting, cash flow management, operational reporting, internal controls, and GAAP-aligned accounting processes. Their approach is built around ongoing collaboration with either existing accounting teams or businesses that need a fully outsourced finance function.

Key Highlights:

  • Outsourced finance and accounting teams
  • Support for GAAP-aligned reporting
  • Collaboration with in-house accounting staff
  • Focus on financial reporting and controls
  • Operational reporting and forecasting capabilities

Services:

  • Outsourced accounting
  • Financial reporting support
  • Operational reporting
  • Cash flow forecasting
  • Outsourced CFO services
  • Controller services
  • Financial consulting

Contact Information:

  • Website: tgg-accounting.com
  • E-mail: info@tgg-accounting.com
  • Facebook: www.facebook.com/TGGaccounting
  • Twitter: x.com/TGGAcctg
  • LinkedIn: www.linkedin.com/company/tgg-accounting
  • Instagram: www.instagram.com/tgg_accounting
  • Address: 21750 Hardy Oak Blvd, Ste 104 PMB 63328, San Antonio, TX 78258-4946
  • Phone: (760) 697-1033

7. Befree

Befree delivers audit support services for accounting firms, auditors, and finance teams that need additional capacity during busy periods. Their team works alongside client firms, following established procedures and workflows rather than replacing existing audit processes. The focus is on helping firms keep audit projects moving while maintaining consistency across documentation and review work.

Beyond financial statement audits, Befree supports compliance audits, review engagements, risk assessment activities, and audit workpaper preparation. The company also combines technology with manual review processes, using automation for routine processing tasks while keeping experienced professionals involved in review, documentation, and final audit support activities. Their services are designed to integrate with the tools and systems already used by audit firms.

Key Highlights:

  • Support for financial statement audits
  • Assistance with compliance audits and review engagements
  • Dedicated audit support teams
  • Integration with client workflows and software
  • Combination of automation and manual review processes

Services:

  • Audit support outsourcing
  • Financial statement audit support
  • Compliance audit support
  • Review engagement support
  • Audit planning assistance
  • Risk assessment support
  • Audit workpaper preparation

Contact Information:

  • Website: befreeltd.com
  • E-mail: info@befreeltd.com
  • Facebook: www.facebook.com/people/Befree-Global/100088891985988
  • Twitter: x.com/infobefreeltd
  • LinkedIn: www.linkedin.com/company/befree-pty-ltd
  • Instagram: www.instagram.com/befree_global
  • Address: Gift House, 3rd Floor, Gift SEZ, Gift City Gandhinagar, Gujarat 382355, India

8. JAC Outsourcing

JAC Outsourcing provides audit support services for businesses preparing for internal audits, external audits, and compliance reviews. Their team works alongside internal departments and auditors to keep audit processes organized, helping companies manage documentation requirements, financial records, and communication throughout the audit cycle.

Their support extends beyond preparation alone. JAC Outsourcing assists before, during, and after audits, covering areas such as internal control reviews, risk analysis, evidence management, compliance reporting, and corrective action planning.

Key Highlights:

  • Support for internal and external audits
  • Assistance with regulatory compliance reviews
  • Internal control assessment services
  • Risk and gap analysis support
  • Auditor coordination and communication

Services:

  • Audit support outsourcing
  • Pre-audit preparation
  • Document review and organization
  • Internal control assessment
  • Risk analysis
  • Gap identification
  • Auditor liaison support

Contact Information:

  • Website: www.jac-outsourcing.co.id
  • E-mail: indonesia@jac-outsourcing.co.id 
  • LinkedIn: www.linkedin.com/company/jacgroup
  • Address: Millennium Centennial Center, 6th Floor, Jl. Jend. Sudirman Kav. 25, Jakarta Selatan 12920 
  • Phone: +62 21 3970 3646 

9. Leinonen

Leinonen is an accounting and financial management company that works with international businesses. While its main focus is accounting, payroll, taxation, and reporting, these services also play an important role in helping companies maintain accurate financial records and prepare for audit requirements.

A fully digital workflow is part of how Leinonen delivers its services, allowing financial information and documentation to be managed efficiently across different locations. Their combination of accounting, management reporting, and tax support can help businesses keep financial records organized and accessible when auditors, regulators, or stakeholders require additional review.

Key Highlights:

  • Focus on international companies
  • Accounting and financial management services
  • Digital document and workflow processes
  • Support for local compliance requirements
  • Management reporting capabilities

Services:

  • Accounting services
  • Payroll management
  • Taxation support
  • Management reporting
  • Company registration assistance
  • Financial administration support

Contact Information:

  • Website: leinonen.eu
  • E-mail: contact@leinonen.eu
  • LinkedIn: www.linkedin.com/company/leinonen-group
  • Address: Leinonen Bulgaria EOOD bul. "Vitosha" 44, 1000 Sofia, Bulgaria
  • Phone: +359 2 983 2198

10. Corient Business Solutions

Corient Business Solutions provides outsourced audit support for UK accounting firms that need additional resources during audit engagements. Their services are structured around UK auditing and accounting requirements, allowing firms to extend capacity without changing their existing audit methodology. The company works within client systems and processes, supporting audit teams rather than replacing them.

Their audit support covers statutory audits, audit working papers, risk-based testing, compliance requirements, and file preparation. Corient also incorporates technology into its delivery model, combining audit professionals with automation tools to reduce time spent on repetitive tasks while maintaining established review and approval processes. The service is designed to fit into existing audit workflows with minimal disruption.

Key Highlights:

  • Audit support tailored to UK accounting firms
  • Alignment with UK auditing and accounting standards
  • Support for risk-based audit approaches
  • Integration with existing audit workflows
  • Use of audit technology and automation tools

Services:

  • Audit support outsourcing
  • Statutory audit support
  • Audit working paper preparation
  • Risk assessment support
  • Audit testing
  • Financial statement testing
  • Compliance support

Contact Information:

  • Website: corientbs.co.uk
  • E-mail: info@corientbs.co.uk
  • Facebook: www.facebook.com/Corientb
  • LinkedIn: www.linkedin.com/company/corient-business-solutions-limited
  • Instagram: www.instagram.com/corientbs
  • Address: The Techno Centre, Puma Way, Coventry, CV1 2TT, United Kingdom
  • Phone: +44 24 7610 3333

11. IRIS

IRIS delivers audit outsourcing services for accountancy firms that need additional audit capacity without expanding their internal teams. Their audit support covers the full audit cycle, allowing firms to bring in external resources for planning, fieldwork, testing, reporting, and final review activities.

Their team supports audits across different types of organizations, including companies, charities, and other regulated entities. Beyond core audit procedures, IRIS assists with internal control reviews, data analysis, audit evidence gathering, final adjustments, and audit reporting tasks. The service is designed to fit into existing workflows while supporting compliance with common accounting and auditing frameworks.

Key Highlights:

  • End-to-end audit support
  • Support for multiple audit methodologies
  • Work with existing audit software platforms
  • Assistance across all audit stages
  • Internal control assessment support

Services:

  • Audit planning
  • Audit file preparation
  • Sampling procedures
  • Vouching
  • Verification testing
  • Audit fieldwork support
  • Audit evidence collection
  • Schedule preparation

Contact Information:

  • Website: www.iris.co.uk
  • Facebook: www.facebook.com/IRISSoftwareGroup
  • Twitter: x.com/IRISSoftwareGrp
  • LinkedIn: www.linkedin.com/company/iris-software-group
  • Instagram: www.instagram.com/irissoftwaregroup
  • Address: 4th Floor, Heathrow Approach, 470 London Road, Slough, SL3 8QY 
  • Phone: 0344 815 5555

12. Clearcut Outsourcing

Clearcut Outsourcing works primarily with audit and accounting firms that need additional resources for audit delivery. Their model allows firms to add remote or on-site audit professionals to existing teams, with support available at different levels ranging from assistant auditors to senior managers. They provide different engagement options depending on how much of the audit process a firm wants to outsource.

Their services include audit planning, risk assessment, substantive testing, internal control testing, analytical procedures, audit completion work, and review activities. Clearcut Outsourcing also offers complete audit outsourcing arrangements where they handle the process from planning through to audit completion, while working under the direction and requirements of the client firm.

Key Highlights:

  • Audit support for accounting and audit firms
  • Remote and on-site audit resources
  • Multiple staffing levels available
  • Internal and external audit support
  • Flexible engagement models

Services:

  • Audit outsourcing
  • Staff secondment
  • Full-time audit resource support
  • Internal audit services
  • Audit planning
  • Risk assessment support
  • Substantive testing

Contact Information:

  • Website: www.clearcutoutsourcing.com
  • E-mail: info@clearcutoutsourcing.com
  • Address: 418 Broadway, Ste 4808,Albany, NY 12207, USA 
  • Phone: +1 (646) 632-1355 

13. Staria

Staria provides accounting outsourcing and financial management services for companies operating across multiple countries. Their work is centered on creating consistent financial processes, reporting structures, and accounting practices across subsidiaries and business units.

The company supports businesses through accounting, reporting, payroll, taxation, and financial management services delivered across a broad international network. Staria also works with companies that need group-level reporting and IFRS-related support, areas that often require careful coordination during audits and financial reviews.

Key Highlights:

  • International accounting support across multiple countries
  • Consolidated financial reporting capabilities
  • Single point of contact model
  • Technology-driven financial management processes
  • Support for growing and multi-entity organizations

Services:

  • Accounting outsourcing
  • Financial reporting
  • Group accounting support
  • IFRS consulting
  • Global accounting services
  • Payroll services
  • Taxation support

Contact Information:

  • Website: www.staria.com
  • E-mail: info@staria.com 
  • Facebook: www.facebook.com/stariasuomi
  • Twitter: x.com/StariaGroup
  • LinkedIn: www.linkedin.com/company/staria-oyj
  • Instagram: www.instagram.com/stariagroup
  • Address: 400 Thames Valley Park Drive, Reading Berkshire, RG6 1PT 
  • Phone: +44 118 214 7809

14. Monk Tax Solutions

Monk Tax Solutions delivers outsourced audit support for accounting firms and businesses that need additional resources during audit periods. Their services are focused on helping organizations manage audit workloads, review financial information, organize audit files, and prepare documentation required for audit engagements. They work across different stages of the audit process, from initial preparation through post-audit follow-up activities.

Their team assists with audit file management, financial statement reviews, compliance checks, risk assessments, and audit documentation. Monk Tax Solutions also supports firms that want to move from spreadsheet-based audit processes to more structured digital workflows. They place attention on confidentiality procedures and ongoing communication throughout engagements.

Key Highlights:

  • Audit support for accounting firms and businesses
  • Financial statement review assistance
  • Audit file migration and management support
  • Risk assessment and compliance review services
  • Focus on secure handling of financial information

Services:

  • Audit support outsourcing
  • Internal audit support
  • Audit file roll-forward services
  • Audit document migration
  • Financial statement reviews
  • Audit checklist preparation
  • Error identification and reporting

Contact Information:

  • Website: monktaxsolutions.com
  • E-mail: Info@monktaxsolutions.com
  • Facebook: www.facebook.com/people/Monk-Tax-Solutions/61556071330895
  • Twitter: x.com/Monktaxsolution
  • LinkedIn: www.linkedin.com/company/monk-tax-solutions
  • Instagram: www.instagram.com/monktaxsolutions
  • Address: 71-75 Shelton Street, Covent Garden, London, WC2H 9JQ, United Kingdom
  • Phone: 0207-183-5625

15. CapActix

CapActix provides outsourced audit support services for CPA firms and accounting firms that require assistance with different types of audit engagements. Their work covers financial statement audits, compliance audits, forensic audits, internal audits, and other audit-related activities.

CapActix assists with trial balance mapping, materiality calculations, audit evidence verification, internal control testing, substantive testing, financial statement preparation, and compliance reviews. They also support firms that are moving from spreadsheet-based audit processes to dedicated audit software platforms.

Key Highlights:

  • Support for multiple audit types
  • Structured approach covering planning, execution, and finalization
  • Assistance with audit software migration

Services:

  • Audit support outsourcing
  • Financial statement audits
  • Internal audits
  • SOX compliance audits
  • Forensic audits
  • Compliance audits
  • IRS audit support

Contact Information:

  • Website: www.capactix.com
  • E-mail: biz@capactix.com
  • Facebook: www.facebook.com/Capactix
  • Twitter: x.com/CapActix
  • LinkedIn: www.linkedin.com/company/capactix-business-solutions
  • Instagram: www.instagram.com/capactixbusiness
  • Address: 503 Mohammad Noor Talib Building, Khalid Bin Walid road, Opp Royal Ascot Hotel, Dubai, UAE
  • Phone: +971 58-249-7106

16. HaysMac

HaysMac offers outsourced accounting and finance support for businesses that need help managing reporting obligations, financial records, and compliance requirements. While their services are broader than audit support alone, they work with organizations that need reliable accounting processes and accurate financial information, both of which are important when preparing for audits and regulatory reviews.

Their team supports bookkeeping, management accounting, VAT compliance, statutory accounts preparation, and financial advisory work. HaysMac works with businesses at different stages of growth, including scale-ups, established companies, and organizations entering the UK market.

Key Highlights:

  • Outsourced accounting and finance support
  • Experience working with growing and established businesses
  • Support for statutory reporting requirements
  • Sector-focused financial expertise
  • Flexible delivery model

Services:

  • Bookkeeping
  • Management accounts preparation
  • Accounting outsourcing
  • VAT compliance support
  • Statutory accounts preparation
  • Financial reporting
  • Advisory services

Contact Information:

  • Website: haysmac.com
  • E-mail: contact@haysmac.com
  • LinkedIn: www.linkedin.com/company/haysmac
  • Instagram: www.instagram.com/lifeat_haysmac
  • Address: 10 Queen Street Place, London EC4R 1AG
  • Phone: 020 7969 5500

17. KMK Ventures

KMK Ventures delivers outsourced audit support for CPA firms that need additional resources during periods of increased audit activity. Their approach is centered on extending internal audit teams with offshore professionals who assist with documentation-heavy tasks, allowing firms to manage larger audit volumes without expanding permanent headcount. 

Their audit support covers a range of activities that are often time-consuming for audit teams, including reconciliations, workpaper preparation, tie-outs, testing support, and audit documentation. KMK Ventures works within the client's audit methodology and reporting process, helping firms maintain consistency while reducing pressure on internal staff during busy periods.

Key Highlights:

  • Audit support designed for CPA firms
  • Offshore audit staffing model
  • Assistance during seasonal workload peaks
  • Support for multiple audit engagements
  • Integration with existing audit procedures

Services:

  • Audit workpaper preparation
  • Financial statement tie-outs
  • Audit support outsourcing
  • Audit documentation support
  • Sampling support
  • Testing assistance
  • Lead schedule preparation

Contact Information:

  • Website: kmkventures.com
  • E-mail: info@kmkventures.com
  • Facebook: www.facebook.com/kmk.ventures
  • LinkedIn: www.linkedin.com/company/kmk-ventures-pvt-ltd
  • Instagram: www.instagram.com/kmk.ventures
  • Address: 300, Sankalp Square-3B Sindhu Bhavan Marg, Ahmedabad, Gujarat 380058
  • Phone: 91-98240-42996

18. KPMG

KPMG provides audit and assurance services for organizations that need independent reviews of financial information, internal controls, technology environments, and regulatory reporting. The company works with businesses across different industries, supporting financial statement audits as well as broader assurance engagements that help organizations address reporting and compliance requirements.

Their audit practice combines traditional audit work with analytical tools and technology platforms that assist with reviewing large volumes of financial data. In addition to financial audits, KPMG supports ESG reporting assurance, IT attestation services, internal control assessments, and other assurance engagements where independent verification is required. 

Key Highlights:

  • Financial audit and assurance services
  • ESG reporting assurance capabilities
  • IT audit and attestation services
  • Technology-enabled audit processes
  • Multidisciplinary audit teams

Services:

  • Financial statement audits
  • Financial statement reviews
  • Assurance services
  • ESG assurance
  • Sustainability report verification
  • IT audit services
  • IT attestation services

Contact Information:

  • Website: kpmg.com
  • Facebook: www.facebook.com/KPMG 
  • Twitter: x.com/kpmguk
  • LinkedIn: www.linkedin.com/company/kpmg-uk
  • Address: 66 Queen Square, BS1 4BE , Bristol, UK  
  • Phone: +44 (0)117 905 4200

19. Outbooks

Outbooks offers audit and assurance support services for accounting firms and businesses that need additional help with audit preparation, testing, documentation, and reporting activities. Their service is designed to support audit teams during busy periods while helping maintain consistency across audit files and supporting documentation.

Their support covers both audit execution and risk advisory activities. Outbooks assists with audit testing, lead schedules, analytical procedures, control testing, reconciliations, external confirmations, and audit documentation. The company also supports risk control assessments and control effectiveness reviews, making its services relevant for firms looking to strengthen both audit processes and internal controls.

Key Highlights:

  • Audit and assurance support services
  • Offshore audit support model
  • Risk advisory and control testing capabilities
  • Structured audit support process
  • Collaboration with onshore audit teams
  • Support for annual and statutory audit requirements

Services:

  • Audit support outsourcing
  • Audit testing
  • Control testing
  • Financial statement tie-outs
  • Lead schedule preparation
  • Analytical audit procedures
  • Substantive audit procedures

Contact Information:

  • Website: outbooks.co.uk
  • E-mail: info@outbooks.co.uk
  • Facebook: www.facebook.com/outbooksuk
  • Twitter: x.com/outbooksUK
  • LinkedIn: www.linkedin.com/company/outbooks
  • Instagram: www.instagram.com/outbooksuk
  • Address: Suite 18, Winsor & Newton Building, Whitefriars Avenue, Harrow HA3 5RN, London
  • Phone: +44 330 057 8597

20. Genpact

Genpact provides finance and accounting outsourcing services for organizations looking to improve financial operations, reporting processes, and compliance management. Although the company focuses on broader finance transformation rather than dedicated audit outsourcing, many of its services support the financial controls, reporting accuracy, and documentation standards that are important during audits and financial reviews.

The company works across areas such as accounts payable, record-to-report, financial planning and analysis, and invoice-to-cash processes. Genpact also incorporates automation, analytics, and AI-driven tools into finance operations, helping businesses manage large volumes of financial data while maintaining consistency across reporting and accounting activities.

Key Highlights:

  • Finance and accounting outsourcing services
  • Support for financial reporting and compliance processes
  • Record-to-report expertise
  • Financial planning and analysis capabilities

Services:

  • Finance and accounting outsourcing
  • Accounts payable services
  • Record-to-report services
  • Financial planning and analysis
  • Invoice-to-cash services
  • Financial reporting support

Contact Information:

  • Website: www.genpact.com
  • E-mail: DPO.Genpact@Genpact.com
  • Facebook: www.facebook.com/ProudToBeGenpact
  • Twitter: x.com/genpact
  • LinkedIn: www.linkedin.com/company/genpact
  • Address: Tower 9, 2nd floor Bellandure Village, Outer Ring Road Varthur, Bangalore - 560103 Karnataka
  • Phone: +91 9986901010

Conclusion

Audit work has become harder to manage with tighter deadlines, changing regulations, and ongoing staffing challenges. For many accounting firms and finance teams, outsourcing part of the audit process is no longer just a way to reduce workload. It has become a practical way to maintain consistency, improve turnaround times, and keep internal teams focused on higher-value work.

The companies on this list take different approaches. Some provide full audit support from planning through final review, while others focus on specific tasks such as workpapers, testing, compliance checks, or financial reporting. The right choice depends on how your team operates, where capacity gaps exist, and how much support you actually need.

A good outsourcing partner should fit into your existing workflow without creating extra complexity. Clear communication, strong quality controls, relevant audit experience, and secure handling of financial information matter far more than flashy promises. Taking the time to evaluate those factors can make a noticeable difference when audit season arrives and workloads start to build.

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