Company lists · Data refreshed September 2026

Top 25 Audit defense firms based in the United States

RevenueBase identified 2,609 company matches for audit defense firms associated with the United States as of September 2026 and tracks 27,435 professional contacts across them, including 13,791 with verified work emails. New York is the largest hub.

This list covers company matches for audit defense firms 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 30, 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 30, 2026 How this list was built
2,609Companies
27,435Contacts tracked
13,791Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest audit defense firms based in the United States

Ranked by team size
Top 25 of 2,609 company matches for audit defense firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 30, 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 matchDallas, TX, United StatesHQ recorded Sep 30, 20265,001-10,0006,089 contacts →

Exact match

“Ryan, an award-winning global tax services and software provider, is the largest Firm in the world dedicated exclusively to business taxes.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
2Exact matchFort Wayne, IN, United StatesHQ recorded Sep 30, 2026501-1,000861 contacts →

Exact match

“Great Place to Work® Certified™ DMA, a proudly employee-owned company, has been solving corporate tax challenges for its clients since 1972.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
3Exact matchAtlanta, GA, United StatesHQ recorded Sep 30, 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 30, 2026 · View company records in RevenueBase
4Exact matchSan Jose, CA, United StatesHQ recorded Sep 30, 2026501-1,000493 contacts →

Exact match

“Sensiba’s comprehensive accounting, tax, and consulting services help businesses and people solve problems, navigate complexity, and build a foundation for sustainable growth.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
5Exact matchAtlanta, GA, United StatesHQ recorded Sep 30, 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 30, 2026 · View company records in RevenueBase
6Exact matchExton, PA, United StatesHQ recorded Sep 30, 2026501-1,000364 contacts →

Exact match

“Cohesive is a leading solutions provider and systems integrator for IBM Maximo.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
7Exact matchOrem, UT, United StatesHQ recorded Sep 30, 2026201-500297 contacts →

Exact match

“Squire is a nationally recognized audit, tax, and business advisory firm serving clients across the U.S.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
8Exact matchHouston, TX, United StatesHQ recorded Sep 30, 2026501-1,000269 contacts →

Exact match

“Growth exposes financial weakness.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
9Exact matchCharlotte, NC, United StatesHQ recorded Sep 30, 202651-200266 contacts →

Exact match

“With over 550 clients in 24 states, Tax Management Associates (TMA) is a leader in assisting state and local governments to maximize their revenue streams.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
10Exact matchBethesda, MD, United StatesHQ recorded Sep 30, 2026201-500254 contacts →

Exact match

“Calibre CPA Group is a national accounting and advisory firm serving associations, not-for-profit organizations, labor unions, employee benefit plans, and business enterprises.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
11Exact matchBethesda, MD, United StatesHQ recorded Sep 30, 202651-200243 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
12Exact matchDallas, TX, United StatesHQ recorded Sep 30, 2026201-500224 contacts →

Exact match

“In operation since 1978, KE Andrews is one of the largest state and local tax firms in the country, managing over $500 billion in assets.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
13Exact matchGlendale, CA, United StatesHQ recorded Sep 30, 202651-200187 contacts →

Exact match

“Hutchinson and Bloodgood LLP is a leading firm of Certified Public Accountants and Consultants providing Tax Planning, Auditing, Technology Consulting, Human Resources and…”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
14Exact matchIrvine, CA, United StatesHQ recorded Sep 30, 202651-200178 contacts →

Exact match

“LSL provides solid guidance, support & solutions to businesses, governments and non-profits.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
15Exact matchMiamisburg, OH, United StatesHQ recorded Sep 30, 202651-200175 contacts →

Exact match

“Advisory and accountancy for today’s small- to mid-market businesses offering solutions for tax and assurance compliance, business performance, valuation, IRS disputes &…”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
16Exact matchWestchester, IL, United StatesHQ recorded Sep 30, 202651-200174 contacts →

Exact match

“Legacy Professionals LLP, headquartered in Westchester, IL, with offices in Schererville, IN, and Edina, MN, is a Certified Public Accounting firm serving clients nationwide.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
17Exact matchEast Brunswick, NJ, United StatesHQ recorded Sep 30, 202651-200172 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
18Exact matchRochester, NY, United StatesHQ recorded Sep 30, 202651-200158 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
19Exact matchNew York, NY, United StatesHQ recorded Sep 30, 202651-200146 contacts →

Exact match

“Founded in 1947, Funaro & Co.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
20Exact matchTulsa, OK, United StatesHQ recorded Sep 30, 202651-200144 contacts →

Exact match

“CCK STRATEGIES is a business advisory and public accounting firm committed to helping entrepreneurial clients thrive.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
21Exact matchIrvine, CA, United StatesHQ recorded Sep 30, 202651-200133 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
22Exact matchAlexandria, VA, United StatesHQ recorded Sep 30, 202651-200133 contacts →

Exact match

“KWC is a team of accountants and advisors all dedicated to the founding principle of providing Quality Personal Service.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
23Exact matchFolsom, CA, United StatesHQ recorded Sep 30, 2026201-500130 contacts →

Exact match

“TaxAudit.com is brought to you by the audit experts at TaxResources, Inc.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
24Exact matchWarwick, RI, United StatesHQ recorded Sep 30, 202651-200127 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
25Exact matchMeadville, PA, United StatesHQ recorded Sep 30, 202651-200121 contacts →

Exact match

“McGill, Power, Bell & Associates, LLP (“MPB”) is a public accounting firm with five Pennsylvania offices located in the cities of Erie, Franklin, Grove City, Meadville, and…”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase

Showing 25 of 2,609 audit defense firms based in the United States

See the full list, filter by size, metro and specialty, and access 13,791 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Audit defense firms based in the United States at a glance

As of Sep 30, 2026
50.3%Verified-email coverage
10.5Average contacts per company
1-10Median size (employees)
3.1%Largest-city concentration · New York
Sep 30, 2026Page data refreshed

Companies by employee count

1-10
1,796
11-50
643
51-200
115
201-500
17
501-1,000
10
1,001-5,000
3
5,001-10,000
1

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 2,609 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 defense firms” 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 13,791 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 30, 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 defense firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many audit defense firms are there based in the United States?

RevenueBase identified 2,609 company matches for audit defense firms 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?

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

Which city has the most audit defense firms?

New York leads with 82 company records, followed by Houston (69) and Los Angeles (42).

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 13,791 professional contacts with verified work emails tracked across these 2,609 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 30, 2026.

Ready to reach these companies? Verified emails and direct dials for all 2,609 audit defense firms based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

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.