Company lists · Data refreshed September 2026

Top 25 Federal audit consulting companies worldwide

RevenueBase identified 1,087 federal audit consulting companies worldwide as of September 2026 and tracks 11,417 professional contacts across them, including 4,166 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers federal audit consulting 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 28, 2026. Country and city lists for federal audit consulting 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 28, 2026 86% judged on-target in blind review
1,087Companies
11,417Contacts tracked
4,166Verified emails
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The 25 largest federal audit consulting companies worldwide

Ranked by team size
Top 25 of 1,087 federal audit consulting companies worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to federal audit consulting 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 evidenceSp, BrazilHQ checked Sep 28, 20261,001-5,0001,791 contacts →

Indirect evidence

“Presidida por Raul Corrêa da Silva, a BDO RCS foi fundada em 2001 e desde então mantém participação expressiva no mercado de auditorias.”

Source: RevenueBase Database · checked Sep 28, 2026
2Indirect evidenceStuttgart, GermanyHQ checked Sep 28, 20261,001-5,0001,442 contacts →

Indirect evidence

“Wollen Sie jemanden, der Sie auch beim Sprung in neue Märkte und bei allen anstehenden Herausforderungen begleitet?”

Source: RevenueBase Database · checked Sep 28, 2026
3Indirect evidenceNew Delhi, IndiaHQ checked Sep 28, 202651-200163 contacts →

Indirect evidence

“Sahni Natarajan And Bahl [SNB](Est.”

Source: RevenueBase Database · checked Sep 28, 2026
4Strong evidencePittsburgh, PA, United StatesHQ checked Sep 28, 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 28, 2026
5Partial evidenceAlexandria, VA, United StatesHQ checked Sep 28, 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 28, 2026
6Partial evidenceLyon, FranceHQ checked Sep 28, 202651-200122 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 28, 2026
7Partial evidenceParis, FranceHQ checked Sep 28, 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 28, 2026
8Indirect evidenceRed Bank, NJ, United StatesHQ checked Sep 28, 202651-200109 contacts →

Indirect evidence

“We Make Your Business Operations Comfortable.”

Source: RevenueBase Database · checked Sep 28, 2026
9Partial evidenceBethesda, MD, United StatesHQ checked Sep 28, 202651-200104 contacts →

Partial 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 28, 2026
10Indirect evidenceBanani, BangladeshHQ checked Sep 28, 202651-20099 contacts →

Indirect evidence

“A.”

Source: RevenueBase Database · checked Sep 28, 2026
11Partial evidenceRockville, MD, United StatesHQ checked Sep 28, 202651-20093 contacts →

Partial evidence

“TFC Consulting, Inc is a licensed CPA and consulting firm in the Washington DC metro area.”

Source: RevenueBase Database · checked Sep 28, 2026
12Indirect evidenceİstanbul, TürkiyeHQ checked Sep 28, 202651-20093 contacts →

Indirect evidence

“Vergi, Denetim, Danışmanlık”

Source: RevenueBase Database · checked Sep 28, 2026
13Strong evidenceArlington, VA, United StatesHQ checked Sep 28, 202651-20077 contacts →

Strong evidence

“RMA is a CPA and Consulting firm that provides audit, consulting, and advisory services to the federal government and other client entities.”

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidenceŁódź, PolandHQ checked Sep 28, 202651-20076 contacts →

Indirect evidence

“Jesteśmy dynamicznie rozwijającą się Kancelarią Biegłych Rewidentów, założoną w 2010 roku.”

Source: RevenueBase Database · checked Sep 28, 2026
15Partial evidenceVienna, VA, United StatesHQ checked Sep 28, 202651-20070 contacts →

Partial evidence

“Capital Edge is the largest consulting firm exclusively dedicated to government contractors and grant recipients.”

Source: RevenueBase Database · checked Sep 28, 2026
16Indirect evidenceMumbai, IndiaHQ checked Sep 28, 202611-5069 contacts →

Indirect evidence

“Established in the year 1987, fully operational and growing exponentially since early 2003.”

Source: RevenueBase Database · checked Sep 28, 2026
17Partial evidenceRabat, MoroccoHQ checked Sep 28, 202611-5059 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 28, 2026
18Indirect evidencePowell, OH, United StatesHQ checked Sep 28, 202651-20056 contacts →

Indirect evidence

“We are now Acclarity.”

Source: RevenueBase Database · checked Sep 28, 2026
19Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 28, 202651-20054 contacts →

Indirect evidence

“Past de beheersstructuur nog bij mijn organisatie?”

Source: RevenueBase Database · checked Sep 28, 2026
20Partial evidenceTucson, AZ, United StatesHQ checked Sep 28, 202651-20053 contacts →

Partial evidence

“HeinfeldMeech is a premier auditing and consulting firm specializing in the service of governmental and nonprofit organizations.”

Source: RevenueBase Database · checked Sep 28, 2026
21Strong evidenceLake Forest, CA, United StatesHQ checked Sep 28, 202651-20052 contacts →

Strong evidence

“Conrad LLP is a CPA firm specializing in audit and consulting for government clients.”

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect evidenceHyderabad, IndiaHQ checked Sep 28, 202611-5050 contacts →

Indirect evidence

“NSVR & ASSOCIATES LLP formally known as Nekkanti Srinivasu & Co.”

Source: RevenueBase Database · checked Sep 28, 2026
23Partial evidenceTbilisi, GeorgiaHQ checked Sep 28, 202651-20049 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 28, 2026
24Indirect evidenceManassas, VA, United StatesHQ checked Sep 28, 202611-5046 contacts →

Indirect evidence

“Reed & Associates is a woman-owned small business with offices in Old Saybrook, CT, and Manassas, VA.”

Source: RevenueBase Database · checked Sep 28, 2026
25Indirect evidenceПреображенское, RussiaHQ checked Sep 28, 20261,001-5,00045 contacts →

Indirect evidence

“Официальная страница аудиторско-консалтинговой группы Юникон.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 1,087 federal audit consulting companies worldwide

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Federal audit consulting companies worldwide at a glance

As of Sep 28, 2026
36.5%Verified-email coverage
10.5Average contacts per company
1-10Median size (employees)
2.1%Largest-city concentration · Sao Paulo
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
593
11-50
398
51-200
75
201-500
7
501-1,000
2
1,001-5,000
4
5,001-10,000
1

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 federal audit consulting 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 federal audit consulting companies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “federal audit consulting 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 federal audit consulting 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 federal audit consulting 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, 4,166 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 28, 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.

Federal audit consulting companies by location

6 lists · largest first

Every Federal audit consulting 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 federal audit consulting 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 federal audit consulting companies are there worldwide?

RevenueBase identified 1,087 federal audit consulting 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?

BDO Brazil, headquartered in Sp, tops this list with the largest team on record.

Which country has the most federal audit consulting companies?

The United States leads with 164 companies, followed by Brazil (102) and Türkiye (62). Every federal audit consulting companies list by country and city is linked on this page.

Which city has the most federal audit consulting companies?

Sao Paulo leads with 23 headquartered companies, followed by Istanbul (14) and Dubai (12).

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 4,166 verified decision-maker contacts tracked across these 1,087 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 28, 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.