Company lists · Data refreshed September 2026

Top 25 Internal audit consulting companies based in the United States

Name: Internal audit consulting companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 4, 2026 799 companies tracked

RevenueBase identified 799 internal audit consulting companies headquartered in the United States as of September 2026 and tracks 13,521 professional contacts across them, including 6,417 with verified work emails and 6,266 with mobile numbers. New York is the largest hub.

This list covers internal audit consulting 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. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 4, 2026.

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 4, 2026 86% judged on-target in blind review

799Companies

13,521Contacts tracked

6,417Verified emails

6,266Mobile numbers

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The 25 largest internal audit consulting companies based in the United States

Ranked by team size

Top 25 of 799 internal audit consulting companies based in the United States, ranked by team size, largest first. Data refreshed Sep 4, 2026. RevenueBase Smart Search rates how each company's information relates to internal 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Sikich	Partial evidence	Chicago, TN, United StatesHQ checked Sep 4, 2026	1,001-5,000	1,702 contacts →
	Partial evidence “Sikich offers the public and private sectors a diverse platform of professional services across consulting, technology, and compliance.” Source: RevenueBase Database · checked Sep 4, 2026
2	Bennett Thrasher	Partial evidence	Atlanta, CO, United StatesHQ checked Sep 4, 2026	201-500	546 contacts →
	Partial evidence “Bennett Thrasher provides proven guidance for financial confidence through premier tax, audit, advisory, and outsourcing solutions.” Source: RevenueBase Database · checked Sep 4, 2026
3	Prager Metis Cpas	Partial evidence	New York, United StatesHQ checked Sep 4, 2026	201-500	471 contacts →
	Partial evidence “Prager Metis CPAs is an independent, full service, public accounting and consulting firm.” Source: RevenueBase Database · checked Sep 4, 2026
4	Clark Nuber PS	Indirect evidence	Bellevue, WA, United StatesHQ checked Sep 4, 2026	201-500	353 contacts →
	Indirect evidence “Clark Nuber is an award-winning Certified Public Accounting firm located in the Seattle Metro Area.” Source: RevenueBase Database · checked Sep 4, 2026
5	Johnson Lambert LLP	Indirect evidence	Vienna, NC, United StatesHQ checked Sep 4, 2026	201-500	328 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 4, 2026
6	Larsonallen	Indirect evidence	Minneapolis, MN, United StatesHQ checked Sep 4, 2026	1,001-5,000	287 contacts →
	Indirect evidence “Effective January 2, 2012, LarsonAllen and Clifton Gunderson are now CliftonLarsonAllen.” Source: RevenueBase Database · checked Sep 4, 2026
7	GRF Cpas & Advisors	Partial evidence	North Bethesda, MD, United StatesHQ checked Sep 4, 2026	51-200	243 contacts →
	Partial evidence “Headquartered in the Washington, DC metropolitan region, GRF CPAs & Advisors (GRF) is a full-service professional services firm providing clients with audit and assurance, tax…” Source: RevenueBase Database · checked Sep 4, 2026
8	Harding, Shymanski & Company, P.S.C	Indirect evidence	Evansville, KY, United StatesHQ checked Sep 4, 2026	51-200	198 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 4, 2026
9	Centri	Partial evidence	Philadelphia, NY, United StatesHQ checked Sep 4, 2026	201-500	190 contacts →
	Partial evidence “Centri Business Consulting provides the highest quality advisory consulting services to its clients by being reliable and responsive to their needs.” Source: RevenueBase Database · checked Sep 4, 2026
10	Hutchinson And Bloodgood LLP	Partial evidence	Glendale, CA, United StatesHQ checked Sep 4, 2026	51-200	185 contacts →
	Partial evidence “Hutchinson and Bloodgood LLP is a leading firm of Certified Public Accountants and Consultants providing Tax Planning, Auditing, Technology Consulting, Human Resources and…” Source: RevenueBase Database · checked Sep 4, 2026
11	Dla, LLC	Indirect evidence	Fairfield, NY, United StatesHQ checked Sep 4, 2026	201-500	161 contacts →
	Indirect evidence “DLA, LLC is a leading consultancy firm that provides a wide range of specialized services designed to optimize business operations and drive sustainable growth.” Source: RevenueBase Database · checked Sep 4, 2026
12	Mckonly & Asbury	Indirect evidence	Camp Hill, PA, United StatesHQ checked Sep 4, 2026	51-200	157 contacts →
	Indirect evidence “At McKonly & Asbury, the philosophy of Helping Others Thrive has been the driving force behind the success of our team, clients, and communities since being founded in 1973.” Source: RevenueBase Database · checked Sep 4, 2026
13	Efpr, A Springline Company	Partial evidence	Rochester, NY, United StatesHQ checked Sep 4, 2026	51-200	154 contacts →
	Partial evidence “EFPR, a Springline company, is one of Western New York’s largest accounting and business consulting firms serving clients across the United States and around the globe.” Source: RevenueBase Database · checked Sep 4, 2026
14	SB & Company, LLC	Strong evidence	Owings Mills, PA, United StatesHQ checked Sep 4, 2026	51-200	154 contacts →
	Strong evidence “SB & Company, LLC (SBC) is an audit, tax, risk consulting and business advisory firm that is an outstanding place where highly talented people help our clients succeed.” Source: RevenueBase Database · checked Sep 4, 2026
15	RRBB	Indirect evidence	Somerset, NJ, United StatesHQ checked Sep 4, 2026	51-200	152 contacts →
	Indirect evidence “RRBB," an independent member of the Crete Professionals Alliance, is the brand name under which Rosenberg Rich Baker Berman, P.A.” Source: RevenueBase Database · checked Sep 4, 2026
16	Castro & Company	Partial evidence	Alexandria, VA, United StatesHQ checked Sep 4, 2026	51-200	140 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 4, 2026
17	Maher Duessel	Strong evidence	Pittsburgh, PA, United StatesHQ checked Sep 4, 2026	51-200	136 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 4, 2026
18	Cotton	Partial evidence	Alexandria, VA, United StatesHQ checked Sep 4, 2026	201-500	135 contacts →
	Partial evidence “Cotton is an audit and accounting firm located in Old Town Alexandria, VA.” Source: RevenueBase Database · checked Sep 4, 2026
19	Haskell & White LLP	Partial evidence	Irvine, CA, United StatesHQ checked Sep 4, 2026	51-200	133 contacts →
	Partial evidence “Haskell & White LLP is one of the largest independently owned accounting, auditing and tax consulting firms in Southern California, specializing in servicing public and private…” Source: RevenueBase Database · checked Sep 4, 2026
20	SVA Certified Public Accountants	Indirect evidence	Madison, WI, United StatesHQ checked Sep 4, 2026	201-500	130 contacts →
	Indirect evidence “Founded in 1974 in Madison, WI, SVA started out as a small independent accounting firm with just a few professionals on staff.” Source: RevenueBase Database · checked Sep 4, 2026
21	Malonebailey, LLP	Strong evidence	Houston, TX, United StatesHQ checked Sep 4, 2026	51-200	126 contacts →
	Strong evidence “MaloneBailey is a full service, PCAOB-registered CPA firm that provides audit, tax and consulting services to companies both publicly-traded and privately-held.” Source: RevenueBase Database · checked Sep 4, 2026
22	415 Group	Partial evidence	Canton, OH, United StatesHQ checked Sep 4, 2026	51-200	112 contacts →
	Partial evidence “Proudly located in Canton and Alliance, Ohio, 415 Group is a certified public accounting, business consulting and IT services firm.” Source: RevenueBase Database · checked Sep 4, 2026
23	Premier Consulting & Integration	Indirect evidence	Red Bank, NJ, United StatesHQ checked Sep 4, 2026	51-200	109 contacts →
	Indirect evidence “We Make Your Business Operations Comfortable.” Source: RevenueBase Database · checked Sep 4, 2026
24	R&m Consulting	Strong evidence	Chicago, IL, United StatesHQ checked Sep 4, 2026	51-200	106 contacts →
	Strong evidence “R&M is a boutique consulting firm that works in two key areas: tax and internal audit.” Source: RevenueBase Database · checked Sep 4, 2026
25	Rubino	Partial evidence	Bethesda, MD, United StatesHQ checked Sep 4, 2026	51-200	104 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 4, 2026

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: internal audit consulting companies. 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 internal audit consulting companies.
Partial evidence: Its own public description names part of internal audit consulting companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name internal audit consulting companies. 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 799 internal audit consulting companies based in the United States

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Internal audit consulting companies based in the United States at a glance

As of Sep 4, 2026

47.5%Verified-email coverage

46.3%Mobile-number coverage

16.9Average contacts per company

1-10Median size (employees)

5.4%Largest-city concentration · New York

Sep 4, 2026Page data refreshed

Companies by employee count

1-10

468

11-50

228

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

00–30

52731–60

3,40661–90

2,45590–180

29180+

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 internal 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.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “internal 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 internal 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 internal audit consulting companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
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, 6,417 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 4, 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.

Internal audit consulting companies by metro

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 internal 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 internal audit consulting companies are there based in the United States?

RevenueBase identified 799 internal audit consulting companies headquartered in the United States 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?

Sikich, headquartered in Chattanooga, tops this list with the largest team on record.

Which city has the most internal audit consulting companies?

New York leads with 43 headquartered companies, followed by Houston (27) and Chicago (26).

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 6,417 verified decision-maker contacts tracked across these 799 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 4, 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.