Company lists · Data verified August 2026

Top 25 Audit services companies based in the United States

Name: Audit services companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 366 companies tracked

There are 366 audit services companies headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 8,504 professional contacts across them, including 3,800 with verified work emails and 3,884 with mobile numbers. Houston is the largest hub.

This list covers audit services companies headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

366Companies

8,504Contacts tracked

3,800Verified emails

3,884Mobile numbers

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The 25 largest audit services companies based in the United States

Ranked by team size

Top 25 of 366 audit services companies based in the United States, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Grant Thornton LLP US	Chicago, IL	5,001-10,000	524	174
2	GRF Cpas & Advisors	North Bethesda, MD	51-200	243	187
3	Lauterbach & Amen	Naperville, IL	201-500	225	174
4	Harding, Shymanski & Company, P.S.C	Louisville, KY	51-200	198	138
5	Pease Bell	Cleveland, OH	51-200	182	91
6	Legacy Professionals LLP	Edina, MN	51-200	173	115
7	THF Thomas Howell Ferguson	Bainbridge, GA	51-200	169	67
8	Lumsden Mccormick CPA	Buffalo, NY	51-200	149	101
9	Larson & Company	Moab, UT	51-200	146	100
10	Pattillo, Brown & Hill, LLP	Temple, TX	51-200	139	76
11	Whittlesey	Holyoke, MA	51-200	138	90
12	Maher Duessel	Lancaster, PA	51-200	136	102
13	Cotton	Alexandria, VA	201-500	135	27
14	Kraftcpas Pllc	Lebanon, TN	201-500	134	76
15	Mcgill, Power, Bell & Associates, LLP	Erie, PA	51-200	120	87
16	Cerini And Associates, LLP	Bohemia, NY	51-200	120	54
17	BGM	Longmont, CO	51-200	114	62
18	D'arcangelo & Co., LLP	Oneida, NY	51-200	106	40
19	Rubino	Bethesda, MD	51-200	104	63
20	Berman Hopkins Cpas & Associates, LLP	Melbourne, FL	51-200	102	51
21	Fmfe, Cpa, P.C	Syracuse, NY	51-200	96	62
22	Louis Plung & Company	Pittsburgh, PA	51-200	94	68
23	N&k Cpas, INC	Honolulu, HI	51-200	73	35
24	Brown Smith Wallace	Edwardsville, IL	201-500	68	18
25	Martindale Consultants, INC	Oklahoma City, OK	51-200	64	50

Showing 25 of 366 audit services companies based in the United States

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Audit services companies based in the United States at a glance

As of Aug 28, 2026

11-50Median size (employees)

HoustonLargest hub · 12 HQs

3,884Contacts with mobile numbers

28Emails re-verified in last 30 days

Companies by employee count

1-10

152

11-50

158

51-200

201-500

501-1,000

5,001-10,000

10001+

Audit services companies by metro

Metro	Companies
Audit services companies in Houston	12
Audit services companies in New York	9
Audit services companies in Atlanta	7
Audit services companies in Cleveland	4
Audit services companies in Boca Raton	4
Audit services companies in Miami	4
Audit services companies in Phoenix	4

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “audit services companies”, with match quality audited by blind human judging, and headquartered in the United States.
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: Contact records re-verify on a rolling cadence; 28 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many audit services companies are there based in the United States?

There are 366 audit services companies headquartered in the United States as of August 2026 (RevenueBase).

What is the largest company on this list?

Grant Thornton LLP US, headquartered in Chicago, tops this list with the largest team on record.

Which city has the most audit services companies?

Houston leads with 12 headquartered companies, followed by New York (9) and Atlanta (7).

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 3,800 verified decision-maker contacts tracked across these 366 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.