Company lists · Data refreshed September 2026

Top 25 Audit and assurance companies based in the United States

RevenueBase identified 1,911 company matches for audit and assurance companies associated with the United States as of September 2026 and tracks 284,858 professional contacts across them, including 106,442 with verified work emails. New York is the largest hub.

This list covers company matches for audit and assurance companies associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 19, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 19, 2026 How this list was built
1,911Companies
284,858Contacts tracked
106,442Verified emails
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The 25 largest audit and assurance companies based in the United States

Ranked by team size
Top 25 of 1,911 company matches for audit and assurance companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchChicago, IL, United StatesHQ recorded Sep 19, 202610001+10,534 contacts →

Exact match

“Baker Tilly is a leading advisory, tax and assurance firm, providing clients with a genuine coast-to-coast and global advantage in major regions of the U.S.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2Exact matchChicago, IL, United StatesHQ recorded Sep 19, 20265,001-10,0008,390 contacts →

Exact match

“Crowe provides professional services through two separate entities: Crowe LLP delivers audit and attest services, and Crowe Advisory LLC provides tax, advisory, consulting, and…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3Exact matchNew York, NY, United StatesHQ recorded Sep 19, 20261,001-5,0004,199 contacts →

Exact match

“EisnerAmper, one of the largest business consulting firms in the world, is comprised of EisnerAmper LLP, a licensed independent CPA firm that provides client attest services; and…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4Exact matchUnited StatesHQ recorded Sep 19, 20261,001-5,0003,643 contacts →

Exact match

“We’re Eide Bailly (I’d bay-lee), a business advisory, accounting and technology firm built with our clients in mind.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5Exact matchMilwaukee, WI, United StatesHQ recorded Sep 19, 20261,001-5,0003,047 contacts →

Exact match

“Always advancing.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6Exact matchEnterprise, AL, United StatesHQ recorded Sep 19, 20261,001-5,0002,102 contacts →

Exact match

“Carr, Riggs & Ingram (CRI) is a Top 25 nationally-ranked accounting and advisory firm driven by relationships to cultivate growth.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7Exact matchNew York, NY, United StatesHQ recorded Sep 19, 20261,001-5,0002,035 contacts →

Exact match

“UHY is one of the nation’s largest professional services firms providing audit, tax, consulting and advisory services to clients primarily in the dynamic middle market.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8Exact matchChicago, IL, United StatesHQ recorded Sep 19, 20261,001-5,0001,688 contacts →

Exact match

“Sikich offers the public and private sectors a diverse platform of professional services across consulting, technology, and compliance.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9Exact matchTroy, MI, United StatesHQ recorded Sep 19, 2026501-1,0001,323 contacts →

Exact match

“Rehmann is a professional advisory firm that provides accounting and assurance, business solutions and outsourcing, specialized consulting, and wealth management services.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10Exact matchAppleton, WI, United StatesHQ recorded Sep 19, 20265,001-10,0001,169 contacts →

Exact match

“FORVIS, LLP ranks among the nation's top 10 public accounting firms.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11Exact matchSt. Louis, MO, United StatesHQ recorded Sep 19, 2026501-1,0001,056 contacts →

Exact match

“RubinBrown provides unmatched service to closely held and publicly traded companies in specialized market sectors as well as non-profit and public sector organizations.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12Exact matchPortland, ME, United StatesHQ recorded Sep 19, 2026501-1,000987 contacts →

Exact match

“BerryDunn is the brand name under which Berry, Dunn, McNeil & Parker, LLC and BDMP Assurance, LLP, independently owned entities, provide services.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13Exact matchAtlanta, GA, United StatesHQ recorded Sep 19, 2026501-1,000799 contacts →

Exact match

“Frazier & Deeter (FD) is an award-winning professional services firm, comprised of Frazier & Deeter, LLC, a US licensed CPA firm that provides attest services to its clients, and…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14Exact matchIndianapolis, IN, United StatesHQ recorded Sep 19, 2026501-1,000788 contacts →

Exact match

“KSM (Katz, Sapper & Miller) is a nationally recognized advisory, tax, and audit firm.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15Exact matchSan Jose, CA, United StatesHQ recorded Sep 19, 2026501-1,000675 contacts →

Exact match

“Uniqus Consultech is an AI and global tech-enabled consulting company that specializes in Accounting & Reporting Consulting, Governance, Risk & Compliance, Sustainability &…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16Exact matchAtlanta, GA, United StatesHQ recorded Sep 19, 2026501-1,000650 contacts →

Exact match

“Mauldin & Jenkins, LLC believes that by working together with our clients, we can accomplish anything!”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17Exact matchCarmel, IN, United StatesHQ recorded Sep 19, 2026201-500634 contacts →

Exact match

“At Blue & Co.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18Exact matchCharlotte, NC, United StatesHQ recorded Sep 19, 20261,001-5,000619 contacts →

Exact match

“Ranking among the top 20 in the nation, DHG is a leading professional services firm offering assurance, tax and advisory services for clients in all 50 states and internationally.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19Exact matchLexington, KY, United StatesHQ recorded Sep 19, 2026501-1,000590 contacts →

Exact match

“Dean Dorton provides an integrated suite of audit, tax, business management, consulting, and technology solutions.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20Exact matchAtlanta, GA, United StatesHQ recorded Sep 19, 2026201-500558 contacts →

Exact match

“Bennett Thrasher provides proven guidance for financial confidence through premier tax, audit, advisory, and outsourcing solutions.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21Exact matchBoston, MA, United StatesHQ recorded Sep 19, 2026201-500558 contacts →

Exact match

“Wolf & Company P.C.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22Exact matchChicago, IL, United StatesHQ recorded Sep 19, 20265,001-10,000505 contacts →

Exact match

“Forget what you think you know about professional services.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23Exact matchNew York, United StatesHQ recorded Sep 19, 2026201-500467 contacts →

Exact match

“Prager Metis CPAs is an independent, full service, public accounting and consulting firm.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24Exact matchSalt Lake City, UT, United StatesHQ recorded Sep 19, 2026201-500432 contacts →

Exact match

“Haynie is a leading, full-service CPA firm.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25Exact matchAtlanta, GA, United StatesHQ recorded Sep 19, 2026501-1,000413 contacts →

Exact match

“Smith + Howard is a tax, accounting, advisory, and consulting firm headquartered in Atlanta, with a global presence.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase

Showing 25 of 1,911 audit and assurance companies based in the United States

See the full list, filter by size, metro and specialty, and access 106,442 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Audit and assurance companies based in the United States at a glance

As of Sep 19, 2026
37.4%Verified-email coverage
149.1Average contacts per company
11-50Median size (employees)
2.8%Largest-city concentration · New York
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
774
11-50
754
51-200
275
201-500
44
501-1,000
21
1,001-5,000
26
5,001-10,000
9
10001+
5

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 1,911 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United States whose business descriptions match “audit and assurance companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 106,442 professional contacts with verified work emails across the full matched dataset. 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.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “audit and assurance companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 1,911 company matches for audit and assurance companies associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Baker Tilly US tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most audit and assurance companies?

New York leads with 53 company records, followed by Houston (46) and Atlanta (35).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 106,442 professional contacts with verified work emails tracked across these 1,911 companies; direct dials are available where recorded.

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 SmartSearch, 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.