Company lists · Data refreshed September 2026
Top 25 Audit outsourcing services worldwide
RevenueBase identified 942 audit outsourcing services worldwide as of September 2026 and tracks 7,083 professional contacts across them, including 1,391 with verified work emails. Brazil is the largest market and Sao Paulo the largest hub.
This list covers audit outsourcing services worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 21, 2026. Country and city lists for audit outsourcing services follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest audit outsourcing services worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 294 contacts → | ||||
Partial evidence “Founded in 2007, Buchprufer Consultants has grown into a trusted and reputed outsourcing partner delivering high-quality financial and professional services.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 184 contacts → | ||||
Indirect evidence “Auditing, Accounting and Taxation It’s been 100 years since David Strachan strode from the pavement of Smith Street into William Cotta Building at number 331, and put up his…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 122 contacts → | ||||
Partial evidence “Le GROUPE AURYS est un cabinet d’audit, d’expertise-comptable et de conseil financier qui s’appuie sur plus de 70 ans d’expérience, 18 associés, près de 200 collaborateurs et 8…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 117 contacts → | ||||
Partial evidence “Talenz Audit accompagne les acteurs économiques, entreprises et organisations, dans leurs relations économiques, dans l’analyse de la fiabilité de leurs données financières, et…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 95 contacts → | ||||
Partial evidence “Situé à Paris, Lyon, Marseille et Bordeaux, Arthaud & Associés est spécialisé en Audit et Conseil Financier, et en pleine expansion sur de nombreux métiers transverses : ESG, TS…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 90 contacts → | ||||
Indirect evidence “With the world constantly and rapidly changing, the future will be full of realigned priorities.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 90 contacts → | ||||
Indirect evidence “UCC & Associates LLP was founded in 1991 under the leadership of Umesh Chand Goyal and Sunita Umesh, the founder partners.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 76 contacts → | ||||
Indirect evidence “Jesteśmy dynamicznie rozwijającą się Kancelarią Biegłych Rewidentów, założoną w 2010 roku.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 73 contacts → | ||||
Partial evidence “PKF ANTARES offers wide range of Assurance, Accounting, Tax and Corporate Finance services including- External Audits, Reviews and Compilation of IFRS, ASPE, USGAAP financial…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 69 contacts → | ||||
Partial evidence “Mac Auditor od 1994 roku świadczy na rzecz klientów biznesowych usługi z obszaru audytu, outsourcingu usług księgowych i kadrowo-płacowych oraz doradztwa.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 59 contacts → | ||||
Indirect evidence “PAAST (Perez-Abreu, Aguerrebere, Sueiro & Torres, PL) is a public accounting firm offering a full-line of services, including accounting, attestation, tax, financial due…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 59 contacts → | ||||
Indirect evidence “Lockhat Incorporated is a firm of registered auditors offering a range of financial services to both corporate business and government.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 59 contacts → | ||||
Partial evidence “Accounting And Financial Audit, Procurement Audit, Accounting And Tax Supervision, Audit According To Agreed Procedures, Tax Audit Supervision and Advisory, Book Keeping…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 54 contacts → | ||||
Indirect evidence “Vezin Yeminli Mali Müşavirlik A.Ş, uzun yıllar kamudan sonra özel sektörde Yeminli Mali Müşavirlik ve üst düzey yöneticilik yapmış Hesap Uzmanları tarafından kurulmuş olup, şirket…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 50 contacts → | ||||
Indirect evidence “NSVR & ASSOCIATES LLP formally known as Nekkanti Srinivasu & Co.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 49 contacts → | ||||
Partial evidence “Kudos Georgia is an independent audit, accounting, valuation, tax advisory and corporate finance firm based in Tbilisi, Georgia.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 42 contacts → | ||||
Indirect evidence “A Premiumbravo é uma organização de serviços multifuncionais voltada para Auditoria (Independente, Interna, Sistemas, Operacional) e Consultoria (Gerenciamento de Riscos…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 41 contacts → | ||||
Partial evidence “McClintock & Associates offers a broad range of financial services, with a specialty in financial statement audits and student financial aid audits for the postsecondary education…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 40 contacts → | ||||
Partial evidence “PKF Audit & Conseil est devenu un cabinet indépendant et un membre du réseau PKF International depuis 2018.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 39 contacts → | ||||
Indirect evidence “Accord Contabilidade e Auditoria S/S is a company based out of Brazil.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 38 contacts → | ||||
Indirect evidence “Golden Falcon Consultants is one of the leading providers of accounting, auditing, data entry, management and financial consulting services in the United Arab Emirates.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 38 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 36 contacts → | ||||
Partial evidence “At AuditOne, we believe internal audit should do more than satisfy regulatory expectations, it should strengthen organizations, improve decision-making, and create lasting value.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 34 contacts → | ||||
Indirect evidence “Die GAR Gesellschaft für Aufsichtsrecht und Revision mbH Wirtschaftsprüfungsgesellschaft mit Sitz in Frankfurt am Main wurde im Juli 2009 gegründet.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 32 contacts → | ||||
Partial evidence “Bizpact Shared Services is a professionally managed accounting and finance outsourcing company headquartered in Delhi NCR.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: audit outsourcing services. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names audit outsourcing services.
- Partial evidence
- Its own public description names part of audit outsourcing services, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name audit outsourcing services. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 942 audit outsourcing services worldwide
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Audit outsourcing services worldwide at a glance
As of Sep 21, 2026Companies by employee count
Email recency is reported on each country list linked below.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among audit outsourcing services, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- Coverage
- Every country. Country and city lists for audit outsourcing services are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “audit outsourcing services”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names audit outsourcing services), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among audit outsourcing services, and records with no verified work email.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 1,391 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 21, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Audit outsourcing services by location
6 lists · largest firstEvery Audit outsourcing services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names audit outsourcing services, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many audit outsourcing services are there worldwide?
RevenueBase identified 942 audit outsourcing services worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Buchprufer Consultants LLP, headquartered in Calicut Calicut, tops this list with the largest team on record.
Which country has the most audit outsourcing services?
Brazil leads with 87 companies, followed by India (63) and the United States (54). Every audit outsourcing services list by country and city is linked on this page.
Which city has the most audit outsourcing services?
Sao Paulo leads with 26 headquartered companies, followed by Dubai (17) and Paris (15).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 1,391 verified decision-maker contacts tracked across these 942 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.