Company lists · Data refreshed August 2026

Top 25 Compliance consulting firms based in the United States

Name: Compliance consulting firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Aug 31, 2026 2,547 companies tracked

RevenueBase identified 2,547 compliance consulting firms headquartered in the United States as of August 2026 and tracks 25,245 professional contacts across them, including 10,078 with verified work emails and 9,241 with mobile numbers. New York is the largest hub.

This list covers compliance consulting firms 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 August 31, 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 RevenueBase Smart Search rating on every row Refreshed Aug 31, 2026 86% judged on-target in blind review

2,547Companies

25,245Contacts tracked

10,078Verified emails

9,241Mobile numbers

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The 25 largest compliance consulting firms based in the United States

Ranked by team size

Top 25 of 2,547 compliance consulting firms based in the United States, ranked by team size, largest first. Data refreshed Aug 31, 2026. RevenueBase Smart Search rates how each company's information relates to compliance consulting firms: 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	ACA Group	Partial evidence	New York, NY, United States	1,001-5,000	1,475 contacts →
	Partial evidence “ACA Group is the leading governance, risk, and compliance advisor to the financial services industry.” Source: RevenueBase Database · checked Aug 31, 2026
2	CT Corporation	Partial evidence	New York, NY, United States	1,001-5,000	788 contacts →
	Partial evidence “CT Corporation helps small businesses, corporations, and law firms around the world manage their most critical business and legal compliance responsibilities.” Source: RevenueBase Database · checked Aug 31, 2026
3	Solomonedwards	Indirect evidence	Wayne, PA, United States	1,001-5,000	566 contacts →
	Indirect evidence “For more than 25 years, SolomonEdwards has empowered organizations to tackle common and complex business challenges through strategic advisory, technical advocacy, and hands-on…” Source: RevenueBase Database · checked Aug 31, 2026
4	GSA National	Partial evidence	Fairfax, VA, United States	201-500	558 contacts →
	Partial evidence “GSA National has been helping government contractors ensure compliance and streamline costs since 1991.” Source: RevenueBase Database · checked Aug 31, 2026
5	Enhesa	Partial evidence	Arlington, VA, United States	201-500	463 contacts →
	Partial evidence “At Enhesa we empower the world’s largest businesses to achieve compliance, manage risk, and drive sustainability with clear, actionable insights.” Source: RevenueBase Database · checked Aug 31, 2026
6	Controlcase	Partial evidence	Fairfax, VA, United States	201-500	407 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Aug 31, 2026
7	IBM Promontory	Strong evidence	Washington, DC, United States	501-1,000	406 contacts →
	Strong evidence “IBM Promontory is a global leader in strategy, risk management, and compliance consulting.#IBMConsulting” Source: RevenueBase Database · checked Aug 31, 2026
8	Registrar Corp	Partial evidence	Hampton, VA, United States	51-200	311 contacts →
	Partial evidence “Registrar Corp is your trusted partner helping you navigate global regulatory requirements with expert services, innovative software solutions and comprehensive online compliance…” Source: RevenueBase Database · checked Aug 31, 2026
9	Comply	Partial evidence	New York City, NY, United States	201-500	299 contacts →
	Partial evidence “At Comply, we pride ourselves on being the champion for compliance professionals.” Source: RevenueBase Database · checked Aug 31, 2026
10	Guidepost Solutions	Indirect evidence	Phoenix, AZ, United States	201-500	263 contacts →
	Indirect evidence “We stand at the forefront of leadership, insight, and guidance in a world marked by complexity and uncertainty.” Source: RevenueBase Database · checked Aug 31, 2026
11	Complyright, INC	Indirect evidence	Oxnard, CA, United States	201-500	191 contacts →
	Indirect evidence “At ComplyRight®, our mission is to empower employers by simplifying the complex world of employment law.” Source: RevenueBase Database · checked Aug 31, 2026
12	Lachman Consultant Services	Partial evidence	Bethesda, MD, United States	51-200	178 contacts →
	Partial evidence “QUALITY \| COMPLIANCE \| REGULATORY AFFAIRS \| DATA INTEGRITY \| QMM.” Source: RevenueBase Database · checked Aug 31, 2026
13	U.S. Compliance Environmental, Health & Safety Consulting	Partial evidence	Excelsior, MN, United States	51-200	162 contacts →
	Partial evidence “The leader in environmental, health and safety compliance solutions.” Source: RevenueBase Database · checked Aug 31, 2026
14	Dla, LLC	Indirect evidence	New York, NY, United States	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 Aug 31, 2026
15	Harbor Compliance	Partial evidence	Lancaster, PA, United States	201-500	149 contacts →
	Partial evidence “We provide innovative compliance solutions by embracing complexity and making it simple.” Source: RevenueBase Database · checked Aug 31, 2026
16	Soho Square Solutions	Partial evidence	New York, NY, United States	201-500	140 contacts →
	Partial evidence “Experts on financial regulatory & compliance, business analysis, project Implementation and delivery for Corporate and Investment Banking, Asset management clients Firm…” Source: RevenueBase Database · checked Aug 31, 2026
17	HCPRO	Indirect evidence	Chicago, IL, United States	201-500	136 contacts →
	Indirect evidence “HCPro, LLC.” Source: RevenueBase Database · checked Aug 31, 2026
18	360 Advanced	Partial evidence	St Petersburg, FL, United States	51-200	130 contacts →
	Partial evidence “360 Advanced is a relationship-focused cybersecurity and compliance firm offering security, privacy and compliance-oriented solutions customized to meet your organization and your…” Source: RevenueBase Database · checked Aug 31, 2026
19	Risk & Regulatory Consulting LLC	Partial evidence	Farmington, CT, United States	51-200	124 contacts →
	Partial evidence “Risk & Regulatory Consulting, LLC is a leading, national professional services firm dedicated to providing exceptional consulting services to insurance regulators.” Source: RevenueBase Database · checked Aug 31, 2026
20	Simplify Compliance	Partial evidence	Brentwood, TN, United States	501-1,000	94 contacts →
	Partial evidence “Simplify Compliance helps customers learn, comply, and succeed by providing mission-critical regulatory and business information, analysis, and tools.” Source: RevenueBase Database · checked Aug 31, 2026
21	Capital Edge Consulting	Partial evidence	Tampa, FL, United States	51-200	67 contacts →
	Partial evidence “Capital Edge is the largest consulting firm exclusively dedicated to government contractors and grant recipients.” Source: RevenueBase Database · checked Aug 31, 2026
22	Doctorsmanagement, LLC	Partial evidence	Knoxville, TN, United States	51-200	65 contacts →
	Partial evidence “DoctorsManagement is a full-service medical practice consulting firm comprised of dedicated experts to support your practice goals.” Source: RevenueBase Database · checked Aug 31, 2026
23	IES Safety, LLC	Partial evidence	Lexington, KY, United States	201-500	65 contacts →
	Partial evidence “IES Safety, LLC delivers expert occupational safety and health consulting through seasoned professionals who help clients proactively manage risk and maintain regulatory…” Source: RevenueBase Database · checked Aug 31, 2026
24	RCP INC	Partial evidence	Houston, TX, United States	51-200	62 contacts →
	Partial evidence “RCP is the regulatory compliance and risk management expert for pipelines, facilities, and terminal operations.” Source: RevenueBase Database · checked Aug 31, 2026
25	Control Solutions International	Partial evidence	Woburn, MA, United States	201-500	60 contacts →
	Partial evidence “Control Solutions International is a leading global consulting and risk advisory firm focused on providing our clients with industry experts who specialize in risk management…” Source: RevenueBase Database · checked Aug 31, 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: compliance consulting firms. 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 compliance consulting firms.
Partial evidence: Its own public description names part of compliance consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name compliance consulting firms. 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 2,547 compliance consulting firms based in the United States

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Compliance consulting firms based in the United States at a glance

As of Aug 31, 2026

39.9%Verified-email coverage

36.6%Mobile-number coverage

9.9Average contacts per company

1-10Median size (employees)

5.1%Largest-city concentration · New York

Aug 31, 2026Page data refreshed

Companies by employee count

1-10

1,816

11-50

575

51-200

111

201-500

501-1,000

1,001-5,000

5,001-10,000

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 compliance consulting firms, 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 “compliance consulting firms”. 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 compliance consulting firms), 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 compliance consulting firms, 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, 10,078 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 August 31, 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.

Compliance consulting firms 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 compliance consulting firms, 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 compliance consulting firms are there based in the United States?

RevenueBase identified 2,547 compliance consulting firms headquartered in the United States as of August 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?

ACA Group, headquartered in New York, tops this list with the largest team on record.

Which city has the most compliance consulting firms?

New York leads with 130 headquartered companies, followed by Washington (62) and Houston (47).

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 10,078 verified decision-maker contacts tracked across these 2,547 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 31, 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.