Company lists · Data refreshed September 2026

Top 25 Government audit companies worldwide

RevenueBase identified 1,825 government audit companies worldwide as of September 2026 and tracks 41,239 professional contacts across them, including 11,543 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers government audit companies 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 government audit companies 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 19, 2026 86% judged on-target in blind review
1,825Companies
41,239Contacts tracked
11,543Verified emails
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The 25 largest government audit companies worldwide

Ranked by team size
Top 25 of 1,825 government audit companies worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to government audit companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidencePretoria, South AfricaHQ checked Sep 19, 20261,001-5,0004,439 contacts →

Indirect evidence

“The Auditor-General South Africa ("AGSA") is established in terms of section 181(1)(e) of the Constitution of the Republic of South Africa, 1996 (Act No.108 of 1996) as a state…”

Source: RevenueBase Database · checked Sep 19, 2026
2Partial evidenceJakarta Pusat, IndonesiaHQ checked Sep 19, 202610001+2,423 contacts →

Partial evidence

“VISION Becoming a driving force in state financial management to achieve national goals through a high quality and value-added audits.”

Source: RevenueBase Database · checked Sep 19, 2026
3Indirect evidenceSantiago, ChileHQ checked Sep 19, 20261,001-5,0001,544 contacts →

Indirect evidence

“La labor de la Contraloría es eminentemente fiscalizadora; de carácter jurídico, contable y financiero, pues está destinada a cautelar el principio de legalidad, es decir…”

Source: RevenueBase Database · checked Sep 19, 2026
4Indirect evidenceJakarta Timur, IndonesiaHQ checked Sep 19, 20265,001-10,0001,502 contacts →

Indirect evidence

“Visi BPKP: Auditor Presiden yang responsif, interaktif, dan terpercaya untuk mewujudkan akuntabilitas keuangan negara yang berkualitas.”

Source: RevenueBase Database · checked Sep 19, 2026
5Partial evidenceAlexandria, VA, United StatesHQ checked Sep 19, 20261,001-5,000999 contacts →

Partial evidence

“Established in 1985, Kearney & Company is the largest Certified Public Accounting (CPA) firm in the country exclusively focused on the government.”

Source: RevenueBase Database · checked Sep 19, 2026
6Indirect evidenceOttawa, CanadaHQ checked Sep 19, 2026501-1,000706 contacts →

Indirect evidence

“The Office of the Auditor General of Canada (OAG) employs approximately 790 people between its head office in Ottawa and four regional offices in Vancouver, Edmonton, Montréal and…”

Source: RevenueBase Database · checked Sep 19, 2026
7Indirect evidenceNairobi, KenyaHQ checked Sep 19, 20261,001-5,000420 contacts →

Indirect evidence

“The Office of the Auditor-General (OAG) is an independent Office established under Article 229 of the Constitution of Kenya.”

Source: RevenueBase Database · checked Sep 19, 2026
8Indirect evidenceDen Haag, NetherlandsHQ checked Sep 19, 2026201-500325 contacts →

Indirect evidence

“De Algemene Rekenkamer controleert of rijksoverheid geld uitgeeft en beleid uitvoert zoals het de bedoeling was.”

Source: RevenueBase Database · checked Sep 19, 2026
9Indirect evidenceStockholm, SwedenHQ checked Sep 19, 2026201-500285 contacts →

Indirect evidence

“Riksrevisionen är en oberoende myndighet under riksdagen med uppdrag att granska statens verksamhet.”

Source: RevenueBase Database · checked Sep 19, 2026
10Indirect evidenceBethesda, MD, United StatesHQ checked Sep 19, 2026201-500283 contacts →

Indirect evidence

“Information Systems and Networks Corporation- Headquartered in Bethesda, Maryland, ISN Corporation is a nationwide provider of specialized professional services to Federal…”

Source: RevenueBase Database · checked Sep 19, 2026
11Indirect evidenceOslo, NorwayHQ checked Sep 19, 2026201-500266 contacts →

Indirect evidence

“The Office of the Auditor General of Norway monitors the public sector on behalf of the Norwegian parliament (the Storting).”

Source: RevenueBase Database · checked Sep 19, 2026
12Partial evidenceQuébec, QC, CanadaHQ checked Sep 19, 2026201-500255 contacts →

Partial evidence

“Au service de l’Assemblée nationale, le Vérificateur général du Québec a pour mission de favoriser, par ses audits et ses autres travaux, le contrôle parlementaire sur les fonds…”

Source: RevenueBase Database · checked Sep 19, 2026
13Indirect evidenceNaperville, IL, United StatesHQ checked Sep 19, 2026201-500223 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, 2026
14Indirect evidenceMumbai, IndiaHQ checked Sep 19, 202651-200222 contacts →

Indirect evidence

“V.”

Source: RevenueBase Database · checked Sep 19, 2026
15Indirect evidenceUmhlanga, South AfricaHQ checked Sep 19, 2026201-500184 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 19, 2026
16Partial evidenceWellington, New ZealandHQ checked Sep 19, 202651-200176 contacts →

Partial evidence

“The Office of the Auditor-General (OAG) carries out the work of the Controller and Auditor-General, along with Audit New Zealand, and private sector auditing firms.”

Source: RevenueBase Database · checked Sep 19, 2026
17Indirect evidenceTallahassee, FL, United StatesHQ checked Sep 19, 202651-200163 contacts →

Indirect evidence

“Thomas Howell Ferguson P.A.”

Source: RevenueBase Database · checked Sep 19, 2026
18Indirect evidenceMumbai, IndiaHQ checked Sep 19, 2026201-500146 contacts →

Indirect evidence

“M M NISSIM & CO LLP (MMN) has been in professional practice from the year 1946.”

Source: RevenueBase Database · checked Sep 19, 2026
19Indirect evidenceWoodbridge, VA, United StatesHQ checked Sep 19, 202651-200139 contacts →

Indirect evidence

“St.”

Source: RevenueBase Database · checked Sep 19, 2026
20Strong evidencePittsburgh, PA, United StatesHQ checked Sep 19, 202651-200135 contacts →

Strong 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, 2026
21Partial evidenceAlexandria, VA, United StatesHQ checked Sep 19, 202651-200135 contacts →

Partial evidence

“Castro & Company is an audit, advisory, and IT services CPA Firm specializing in providing the full resources and quality expected from a larger CPA firm while not compromising in…”

Source: RevenueBase Database · checked Sep 19, 2026
22Indirect evidenceKampala, UgandaHQ checked Sep 19, 2026501-1,000132 contacts →

Indirect evidence

“The Office of the Auditor General (OAG) is an Institution established under the provisions of Article 163 of the Constitution of the Republic of Uganda.”

Source: RevenueBase Database · checked Sep 19, 2026
23Partial evidenceParis, FranceHQ checked Sep 19, 2026201-500117 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 19, 2026
24Indirect evidenceRed Bank, NJ, United StatesHQ checked Sep 19, 202651-200109 contacts →

Indirect evidence

“We Make Your Business Operations Comfortable.”

Source: RevenueBase Database · checked Sep 19, 2026
25Indirect evidenceBethesda, MD, United StatesHQ checked Sep 19, 202651-200104 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, 2026

Showing 25 of 1,825 government audit companies worldwide

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Government audit companies worldwide at a glance

As of Sep 19, 2026
28.0%Verified-email coverage
22.6Average contacts per company
1-10Median size (employees)
1.5%Largest-city concentration · Sao Paulo
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
956
11-50
643
51-200
146
201-500
36
501-1,000
11
1,001-5,000
14
5,001-10,000
5
10001+
6

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 government audit companies, 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 government audit companies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “government audit companies”. 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 government audit companies), 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 government audit companies, 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, 11,543 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.

Government audit companies by location

14 lists · largest first

Every Government audit companies 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 government audit companies, 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 government audit companies are there worldwide?

RevenueBase identified 1,825 government audit companies 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?

Auditor-General Of South Africa, headquartered in Pretoria, tops this list with the largest team on record.

Which country has the most government audit companies?

The United States leads with 230 companies, followed by Brazil (117) and Spain (98). Every government audit companies list by country and city is linked on this page.

Which city has the most government audit companies?

Sao Paulo leads with 28 headquartered companies, followed by Dubai (25) and Istanbul (24).

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 11,543 verified decision-maker contacts tracked across these 1,825 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.