Company lists · Data refreshed September 2026
Top 25 Auditing service providers worldwide
RevenueBase identified 1,849 auditing service providers worldwide as of September 2026 and tracks 16,057 professional contacts across them, including 3,612 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.
This list covers auditing service providers 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 19, 2026. Country and city lists for auditing service providers 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 auditing service providers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 374 contacts → | ||||
Strong evidence “Exponens is an independent group providing public accounting expertise, consultancy and auditing, with more than 300 employees, based in 9 offices in the Ile-de-France region.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 223 contacts → | ||||
Indirect evidence “Lauterbach & Amen, LLP (L&A), established in 1997 by partners Sherry Lauterbach and Ron Amen, is a reputable public accounting firm known for its unwavering dedication to quality…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 222 contacts → | ||||
Indirect evidence “V.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 184 contacts → | ||||
Strong 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 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 146 contacts → | ||||
Indirect evidence “M M NISSIM & CO LLP (MMN) has been in professional practice from the year 1946.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 135 contacts → | ||||
Indirect evidence “Maher Duessel is a leading regional CPA firm that was founded to provide high-caliber audit, tax, and consulting services to clients in the governmental and non-profit sectors.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 117 contacts → | ||||
Indirect 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 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 104 contacts → | ||||
Indirect evidence “For over 45 years, Rubino & Company, Chartered has provided outstanding public accounting, tax advisory, regulatory consulting, and financial services to clients in the…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 99 contacts → | ||||
Indirect evidence “A.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 95 contacts → | ||||
Indirect 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 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 76 contacts → | ||||
Indirect evidence “Jesteśmy dynamicznie rozwijającą się Kancelarią Biegłych Rewidentów, założoną w 2010 roku.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 71 contacts → | ||||
Indirect evidence “SWAP is a well established not for profit organisation that focuses on internal audit but also offers a variety of independent business improvement and assurance services designed…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 69 contacts → | ||||
Indirect evidence “Established in the year 1987, fully operational and growing exponentially since early 2003.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 59 contacts → | ||||
Indirect evidence “Há 31 anos os Profissionais da ASPR, prestam reconhecidos serviços à centenas de clientes, nacionais e estrangeiros.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 59 contacts → | ||||
Indirect 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 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 54 contacts → | ||||
Indirect evidence “Past de beheersstructuur nog bij mijn organisatie?” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 53 contacts → | ||||
Strong evidence “HeinfeldMeech is a premier auditing and consulting firm specializing in the service of governmental and nonprofit organizations.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 52 contacts → | ||||
Indirect evidence “Conrad LLP is a CPA firm specializing in audit and consulting for government clients.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 51 contacts → | ||||
Indirect evidence “Your Trusted Audit and Assurance Specialist National Audits Group partners with accounting firms across Australia, offering independent audit and assurance services that enhance…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 50 contacts → | ||||
Indirect evidence “Stein Registered Auditors was founded in 2002 and is managed by six dynamic and broad skilled partners who collectively brings over 150 years of knowledge, skills and expertise in…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 50 contacts → | ||||
Indirect evidence “NSVR & ASSOCIATES LLP formally known as Nekkanti Srinivasu & Co.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 49 contacts → | ||||
Indirect evidence “Kudos Georgia is an independent audit, accounting, valuation, tax advisory and corporate finance firm based in Tbilisi, Georgia.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 49 contacts → | ||||
Indirect evidence “Auditoría y Consultoría | Ecuador Hansen-Holm está comprometida con la calidad y seguridad de la información que manejamos durante todo el proceso del servicio de auditoría…” Source: RevenueBase Database · checked Sep 19, 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: auditing service providers. 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 auditing service providers.
- Partial evidence
- Its own public description names part of auditing service providers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name auditing service providers. 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 1,849 auditing service providers worldwide
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Auditing service providers worldwide at a glance
As of Sep 19, 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 auditing service providers, 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 auditing service providers are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “auditing service providers”. 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 auditing service providers), 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 auditing service providers, 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, 3,612 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 19, 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.
Auditing service providers by location
15 lists · largest firstEvery Auditing service providers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Auditing service providers based in the United States155
- Auditing service providers based in Brazil131
- Auditing service providers based in France113
- Auditing service providers based in Spain108
- Auditing service providers based in Türkiye84
- Auditing service providers based in Australia62
- Auditing service providers based in India61
- Auditing service providers based in Italy57
- Auditing service providers based in the United Arab Emirates50
- Auditing service providers based in Germany47
- Auditing service providers based in the Netherlands40
- Auditing service providers based in South Africa39
- Auditing service providers based in Poland36
- Auditing service providers based in Portugal26
- Auditing service providers based in Norway25
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 auditing service providers, 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 auditing service providers are there worldwide?
RevenueBase identified 1,849 auditing service providers 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?
Exponens, headquartered in Paris, tops this list with the largest team on record.
Which country has the most auditing service providers?
The United States leads with 155 companies, followed by Brazil (131) and France (113). Every auditing service providers list by country and city is linked on this page.
Which city has the most auditing service providers?
Sao Paulo leads with 37 headquartered companies, followed by Istanbul (26) and Dubai (25).
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 3,612 verified decision-maker contacts tracked across these 1,849 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 19, 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.