Company lists · Data refreshed September 2026

Top 25 Compliance and audit firms based in the United States

RevenueBase identified 1,808 company matches for compliance and audit firms associated with the United States as of September 2026 and tracks 24,085 professional contacts across them, including 11,175 with verified work emails. New York is the largest hub.

This list covers company matches for compliance and audit 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 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
1,808Companies
24,085Contacts tracked
11,175Verified emails
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The 25 largest compliance and audit firms based in the United States

Ranked by team size
Top 25 of 1,808 company matches for compliance and audit firms 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, 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
2Exact matchNew York, NY, United StatesHQ recorded Sep 19, 20261,001-5,0001,486 contacts →

Exact match

“ACA Group is the leading governance, risk, and compliance advisor to the financial services industry.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3Exact matchTampa, FL, United StatesHQ recorded Sep 19, 2026501-1,000798 contacts →

Exact match

“A-LIGN is the leading provider of high-quality, efficient cybersecurity compliance programs.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4Exact matchNew York, NY, United StatesHQ recorded Sep 19, 20261,001-5,000788 contacts →

Exact match

“CT Corporation helps small businesses, corporations, and law firms around the world manage their most critical business and legal compliance responsibilities.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5Exact 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
6Exact matchNew York, NY, United StatesHQ recorded Sep 19, 2026501-1,000661 contacts →

Exact match

“LRN is the world's largest dedicated ethics and compliance company, educating and helping more than 30 million people each year worldwide navigate complex legal and regulatory…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7Exact matchWayne, PA, United StatesHQ recorded Sep 19, 20261,001-5,000557 contacts →

Exact match

“For more than 25 years, SolomonEdwards has empowered organizations to tackle common and complex business challenges through strategic advisory, technical advocacy, and hands-on…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8Exact matchNew York, NY, United StatesHQ recorded Sep 19, 2026201-500416 contacts →

Exact match

“Aithent creates high-value regulatory compliance management solutions for financial services, government, healthcare and insurance organizations around the globe.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9Exact matchFairfax, VA, United StatesHQ recorded Sep 19, 2026201-500411 contacts →

Exact match

“ControlCase is committed to bringing peace of mind to the world’s IT compliance programs through our signature partnership approach, commitment to automation, and cost-effective…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10Exact matchWashington, DC, United StatesHQ recorded Sep 19, 2026501-1,000403 contacts →

Exact match

“IBM Promontory is a global leader in strategy, risk management, and compliance consulting.#IBMConsulting”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11Exact matchMount Laurel, NJ, United StatesHQ recorded Sep 19, 2026201-500364 contacts →

Exact match

“APA Engineering Inc has been a leader in providing Compliance, Engineering, IT, and Sourcing services since With over twenty years in business, we are dedicated to providing the…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12Exact matchWichita, KS, United StatesHQ recorded Sep 19, 2026501-1,000332 contacts →

Exact match

“PROtect is a leading national provider of reliability, risk, and compliance services to the refining, petrochemical, renewable fuels, manufacturing, food & beverage, fertilizer…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13Exact matchNew York, NY, United StatesHQ recorded Sep 19, 2026201-500308 contacts →

Exact match

“At Comply, we pride ourselves on being the champion for compliance professionals.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14Exact matchNew York, NY, United StatesHQ recorded Sep 19, 2026201-500295 contacts →

Exact match

“MCO is a global leader on a mission to revolutionize how financial firms tackle compliance, making it simpler, smarter, and more effective.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15Exact matchNew York, NY, United StatesHQ recorded Sep 19, 2026201-500268 contacts →

Exact match

“We stand at the forefront of leadership, insight, and guidance in a world marked by complexity and uncertainty.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16Exact matchPalo Alto, CA, United StatesHQ recorded Sep 19, 202651-200248 contacts →

Exact match

“Governance, Risk, and Compliance simplified for new-age businesses.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17Exact matchNew York, NY, United StatesHQ recorded Sep 19, 2026201-500243 contacts →

Exact match

“Thoropass is the only end-to-end cybersecurity auditor.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18Exact matchOak Brook, IL, United StatesHQ recorded Sep 19, 2026201-500223 contacts →

Exact match

“The urgent need for technology to solve business problems more efficiently, decrease costs, and mitigate risk has increased.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19Exact matchWestbury, NY, United StatesHQ recorded Sep 19, 202651-200179 contacts →

Exact match

“Quality & Compliance | Regulatory Strategy | Inspection Readiness & Remediation | Data Integrity.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20Exact matchTampa, FL, United StatesHQ recorded Sep 19, 2026201-500174 contacts →

Exact match

“Insight Assurance is a security and compliance firm trusted by more than 1,500 organizations for their SOC 1, SOC 2, SOC 3, PCI DSS, ISO 27001, ISO 27017/27018, ISO 27701, ISO…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21Exact matchChantilly, VA, United StatesHQ recorded Sep 19, 20261,001-5,000170 contacts →

Exact match

“Trusted By 2,880+ World-Class Brands And Organizations Of All Sizes…!”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22Exact matchFairfield, NJ, United StatesHQ recorded Sep 19, 2026201-500165 contacts →

Exact match

“DLA, LLC is a leading consultancy firm that provides a wide range of specialized services designed to optimize business operations and drive sustainable growth.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23Exact matchOwings Mills, MD, United StatesHQ recorded Sep 19, 202651-200156 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24Exact matchLancaster, PA, United StatesHQ recorded Sep 19, 2026201-500150 contacts →

Exact match

“We provide innovative compliance solutions by embracing complexity and making it simple.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25Exact matchNY, United StatesHQ recorded Sep 19, 202651-200145 contacts →

Exact match

“Established in 2014, Optima is a leading global regulatory compliance and cybersecurity consulting firm advising financial institutions, including investment managers, hedge…”

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

Showing 25 of 1,808 compliance and audit firms based in the United States

See the full list, filter by size, metro and specialty, and access 11,175 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Compliance and audit firms based in the United States at a glance

As of Sep 19, 2026
46.4%Verified-email coverage
13.3Average contacts per company
1-10Median size (employees)
6.8%Largest-city concentration · New York
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
1,165
11-50
480
51-200
121
201-500
23
501-1,000
9
1,001-5,000
7
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 1,808 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 “compliance and audit 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 11,175 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 “compliance and audit firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 1,808 company matches for compliance and audit 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?

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

Which city has the most compliance and audit firms?

New York leads with 123 company records, followed by Houston (48) and Atlanta (40).

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 11,175 professional contacts with verified work emails tracked across these 1,808 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.