Company lists · Data refreshed October 2026

Top 25 Irs audit defense firms based in the United States

RevenueBase identified 3,278 company matches for irs audit defense firms associated with the United States as of October 2026 and tracks 17,482 professional contacts across them, including 6,298 with verified work emails. Houston is the largest hub.

This list covers company matches for irs 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 October 17, 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 Oct 17, 2026 How this list was built
3,278Companies
17,482Contacts tracked
6,298Verified emails
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The 25 largest irs audit defense firms based in the United States

Ranked by team size
Top 25 of 3,278 company matches for irs audit defense firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 17, 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 matchAtlanta, GA, United StatesHQ recorded Oct 17, 2026501-1,000487 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 · Oct 17, 2026 · View company records in RevenueBase
2Exact matchExton, PA, United StatesHQ recorded Oct 17, 2026501-1,000362 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
3Exact matchIrvine, CA, United StatesHQ recorded Oct 17, 20261,001-5,000312 contacts →

Exact match

“We help people with tax debt, wage garnishments, bank levies, audits and much more.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
4Exact matchHouston, TX, United StatesHQ recorded Oct 17, 2026501-1,000244 contacts →

Exact match

“Growth exposes financial weakness.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
5Exact matchDallas, TX, United StatesHQ recorded Oct 17, 2026201-500233 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 · Oct 17, 2026 · View company records in RevenueBase
6Exact matchLakewood, NJ, United StatesHQ recorded Oct 17, 2026201-500218 contacts →

Exact match

“Roth & Co is a top-150 U.S.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
7Exact matchJacksonville, FL, United StatesHQ recorded Oct 17, 2026201-500170 contacts →

Exact match

“Since 2010, Community Tax has helped individuals and businesses across the United States navigate complex tax matters with clarity and confidence.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
8Exact matchNew York, NY, United StatesHQ recorded Oct 17, 202651-200144 contacts →

Exact match

“Founded in 1947, Funaro & Co.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
9Exact matchIrvine, CA, United StatesHQ recorded Oct 17, 2026201-500143 contacts →

Exact match

“We care about people.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
10Exact matchAlexandria, VA, United StatesHQ recorded Oct 17, 202651-200143 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 · Oct 17, 2026 · View company records in RevenueBase
11Exact matchJacksonville, FL, United StatesHQ recorded Oct 17, 2026201-500139 contacts →

Exact match

“Since 2007, Tax Defense Network's team of licensed tax professionals has helped hundreds of thousands of taxpayers and small business owners resolve their IRS issues, including…”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
12Exact matchBroomfield, CO, United StatesHQ recorded Oct 17, 202651-200136 contacts →

Exact match

“Your tax debt resolution partner.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
13Exact matchFolsom, CA, United StatesHQ recorded Oct 17, 2026201-500125 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
14Exact matchLos Angeles, CA, United StatesHQ recorded Oct 17, 202651-200124 contacts →

Exact match

“Anthem Tax Services (ATS) is one of the highest rated Tax Resolution Companies in the U.S, comprised of professionals who are passionate about representing taxpayers and fighting…”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
15Exact matchSanta Barbara, CA, United StatesHQ recorded Oct 17, 202651-200105 contacts →

Exact match

“Bartlett, Pringle & Wolf, LLP is the leading accounting and consulting firm on the Central Coast of California providing a collection of premium services to support your lifestyle.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
16Exact matchWinston Salem, NC, United StatesHQ recorded Oct 17, 202651-200105 contacts →

Exact match

“Protection Plus provides top-tier tax resolution services, offering up to in services to resolve IRS notices, inquiries, and audits.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
17Exact matchChicago, IL, United StatesHQ recorded Oct 17, 202651-200102 contacts →

Exact match

“R&M is a boutique consulting firm that works in two key areas: tax and internal audit.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
18Exact matchPlano, TX, United StatesHQ recorded Oct 17, 202651-20096 contacts →

Exact match

“Ryan Law is headquartered in Plano, Texas, with offices across the United States and Canada.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
19Exact matchBroomfield, CO, United StatesHQ recorded Oct 17, 202651-20095 contacts →

Exact match

“Over the past 28 years, 20/20 Tax Resolution has helped over businesses and individuals reach successful resolutions with their IRS and state tax liabilities.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
20Exact matchSpokane, WA, United StatesHQ recorded Oct 17, 2026201-50087 contacts →

Exact match

“Protecting Finances Leading Tax Debt Relief Experts | IRS & State Resolution Specialists Settle Tax Debt & Regain Stability We help individuals and businesses navigate complex tax…”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
21Exact matchSunrise, FL, United StatesHQ recorded Oct 17, 202651-20084 contacts →

Exact match

“Neil Jesani Tax Advisors, Inc.(NJA) provides a full suite of tax, compliance, accounting, resolution and advisory services, drawing on extensive industry knowledge to serve high…”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
22Exact matchSacramento, CA, United StatesHQ recorded Oct 17, 202651-20079 contacts →

Exact match

“Audit, tax and accounting challenges shouldn't stress you out.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
23Exact matchValley Stream, NY, United StatesHQ recorded Oct 17, 202651-20077 contacts →

Exact match

“Tax Consulting Services Individual Tax Return Preparation * Electronic Filing * Refund Anticipation Loans * Same Day Refund Anticipation Loans * Refund Anticipation Checks * State…”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
24Exact matchNorman, OK, United StatesHQ recorded Oct 17, 202651-20074 contacts →

Exact match

“We are one of the largest tax resolution law firms in the nation.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
25Exact matchVero Beach, FL, United StatesHQ recorded Oct 17, 202651-20067 contacts →

Exact match

“At Omni Tax Help, we provide expert, personalized solutions to resolve tax challenges for individuals and businesses nationwide.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase

Showing 25 of 3,278 irs audit defense firms based in the United States

See the full list, filter by size, metro and specialty, and access 6,298 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Irs audit defense firms based in the United States at a glance

As of Oct 17, 2026
36.0%Verified-email coverage
5.3Average contacts per company
1-10Median size (employees)
3.0%Largest-city concentration · Houston
Oct 17, 2026Page data refreshed

Companies by employee count

1-10
2,425
11-50
666
51-200
137
201-500
15
501-1,000
6
1,001-5,000
2

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 3,278 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 “irs 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 6,298 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 October 17, 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 “irs audit defense firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 3,278 company matches for irs audit defense firms associated with the United States as of October 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?

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

Which city has the most irs audit defense firms?

Houston leads with 97 company records, followed by New York (86) and Los Angeles (61).

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 6,298 professional contacts with verified work emails tracked across these 3,278 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 October 17, 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.