Company lists · Data refreshed September 2026

Top 25 Regulatory compliance consultancies based in the United States

Name: Regulatory compliance consultancies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 2,152 companies tracked

RevenueBase identified 2,152 regulatory compliance consultancies headquartered in the United States as of September 2026 and tracks 20,995 professional contacts across them, including 8,951 with verified work emails. New York is the largest hub.

This list covers regulatory compliance consultancies 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 September 29, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 29, 2026 86% judged on-target in blind review

2,152Companies

20,995Contacts tracked

8,951Verified emails

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The 25 largest regulatory compliance consultancies based in the United States

Ranked by team size

Top 25 of 2,152 regulatory compliance consultancies based in the United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to regulatory compliance consultancies: 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 StatesHQ checked Sep 29, 2026	1,001-5,000	1,486 contacts →
	Partial evidence “ACA Group is the leading governance, risk, and compliance advisor to the financial services industry.” Source: RevenueBase Database · checked Sep 29, 2026
2	CT Corporation	Partial evidence	New York, NY, United StatesHQ checked Sep 29, 2026	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 Sep 29, 2026
3	LRN	Strong evidence	New York, NY, United StatesHQ checked Sep 29, 2026	501-1,000	661 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 29, 2026
4	Enhesa	Partial evidence	Arlington, VA, United StatesHQ checked Sep 29, 2026	201-500	474 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 Sep 29, 2026
5	Aithent INC	Strong evidence	New York, NY, United StatesHQ checked Sep 29, 2026	201-500	416 contacts →
	Strong evidence “Aithent creates high-value regulatory compliance management solutions for financial services, government, healthcare and insurance organizations around the globe.” Source: RevenueBase Database · checked Sep 29, 2026
6	Controlcase	Partial evidence	Fairfax, VA, United StatesHQ checked Sep 29, 2026	201-500	411 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 Sep 29, 2026
7	IBM Promontory	Partial evidence	Washington, DC, United StatesHQ checked Sep 29, 2026	501-1,000	403 contacts →
	Partial evidence “IBM Promontory is a global leader in strategy, risk management, and compliance consulting.#IBMConsulting” Source: RevenueBase Database · checked Sep 29, 2026
8	APA Engineering INC	Partial evidence	Mount Laurel, NJ, United StatesHQ checked Sep 29, 2026	201-500	364 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 29, 2026
9	Registrar Corp	Strong evidence	Hampton, VA, United StatesHQ checked Sep 29, 2026	51-200	317 contacts →
	Strong 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 Sep 29, 2026
10	Comply	Partial evidence	New York City, NY, United StatesHQ checked Sep 29, 2026	201-500	308 contacts →
	Partial evidence “At Comply, we pride ourselves on being the champion for compliance professionals.” Source: RevenueBase Database · checked Sep 29, 2026
11	Vaisesika	Partial evidence	Carlsbad, CA, United StatesHQ checked Sep 29, 2026	201-500	266 contacts →
	Partial evidence “Vaisesika Consulting is a global tech and consulting firm that helps businesses transform their digital setups and stay compliant in a straightforward way.” Source: RevenueBase Database · checked Sep 29, 2026
12	Scrut Automation	Partial evidence	Palo Alto, CA, United StatesHQ checked Sep 29, 2026	51-200	248 contacts →
	Partial evidence “Governance, Risk, and Compliance simplified for new-age businesses.” Source: RevenueBase Database · checked Sep 29, 2026
13	Complyright, INC	Indirect evidence	Pompano Beach, FL, United StatesHQ checked Sep 29, 2026	201-500	190 contacts →
	Indirect evidence “At ComplyRight®, our mission is to empower employers by simplifying the complex world of employment law.” Source: RevenueBase Database · checked Sep 29, 2026
14	Lachman Consultant Services	Strong evidence	Westbury, NY, United StatesHQ checked Sep 29, 2026	51-200	179 contacts →
	Strong evidence “Quality & Compliance \| Regulatory Strategy \| Inspection Readiness & Remediation \| Data Integrity.” Source: RevenueBase Database · checked Sep 29, 2026
15	Harbor Compliance	Partial evidence	Lancaster, PA, United StatesHQ checked Sep 29, 2026	201-500	150 contacts →
	Partial evidence “We provide innovative compliance solutions by embracing complexity and making it simple.” Source: RevenueBase Database · checked Sep 29, 2026
16	Optima Partners	Strong evidence	NY, United StatesHQ checked Sep 29, 2026	51-200	145 contacts →
	Strong evidence “Established in 2014, Optima is a leading global regulatory compliance and cybersecurity consulting firm advising financial institutions, including investment managers, hedge…” Source: RevenueBase Database · checked Sep 29, 2026
17	Soho Square Solutions	Strong evidence	New York, NY, United StatesHQ checked Sep 29, 2026	201-500	142 contacts →
	Strong 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 Sep 29, 2026
18	HCPRO	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	201-500	136 contacts →
	Indirect evidence “HCPro, LLC.” Source: RevenueBase Database · checked Sep 29, 2026
19	Charles IT	Partial evidence	Middletown, CT, United StatesHQ checked Sep 29, 2026	51-200	132 contacts →
	Partial evidence “Charles IT is the Northeast's compliance expert.” Source: RevenueBase Database · checked Sep 29, 2026
20	Risk & Regulatory Consulting LLC	Partial evidence	Farmington, CT, United StatesHQ checked Sep 29, 2026	51-200	122 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 Sep 29, 2026
21	Outsolve	Strong evidence	Metairie, LA, United StatesHQ checked Sep 29, 2026	51-200	116 contacts →
	Strong evidence “Founded in 1998, OutSolve has evolved into a premier compliance-driven HR advisory firm, leveraging deep expertise to simplify complex regulatory landscapes for businesses of all…” Source: RevenueBase Database · checked Sep 29, 2026
22	Opus Regulatory INC	Partial evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	51-200	113 contacts →
	Partial evidence “Opus Regulatory is a niche consulting firm headquartered in the Seaport district of Boston.” Source: RevenueBase Database · checked Sep 29, 2026
23	DFP Partners	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	51-200	110 contacts →
	Indirect evidence “For over 40 years, DFP Partners has been a committed ally to Broker-Dealers, Registered Investment Advisers, and other financial services firms looking for accounting and…” Source: RevenueBase Database · checked Sep 29, 2026
24	Ediphy Advisors, LLC	Indirect evidence	Birmingham, AL, United StatesHQ checked Sep 29, 2026	51-200	109 contacts →
	Indirect evidence “MedManagement announces the launch of EdiPhy Advisors, a new name for our Physician Advisor & Education Services.” Source: RevenueBase Database · checked Sep 29, 2026
25	Chambers Group, INC	Partial evidence	Costa Mesa, CA, United StatesHQ checked Sep 29, 2026	51-200	98 contacts →
	Partial evidence “Public agencies and businesses have been relying on Chambers Group to keep them in compliance with applicable federal, state, and/or local environmental laws, regulations, and…” Source: RevenueBase Database · checked Sep 29, 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: regulatory compliance consultancies. 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 regulatory compliance consultancies.
Partial evidence: Its own public description names part of regulatory compliance consultancies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name regulatory compliance consultancies. 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 2,152 regulatory compliance consultancies based in the United States

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Regulatory compliance consultancies based in the United States at a glance

As of Sep 29, 2026

42.6%Verified-email coverage

9.8Average contacts per company

1-10Median size (employees)

5.2%Largest-city concentration · New York

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

1,492

11-50

509

51-200

112

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 2,152 companies.

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 regulatory compliance consultancies, 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 “regulatory compliance consultancies”. 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 regulatory compliance consultancies), 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 regulatory compliance consultancies, 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, 8,951 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 September 29, 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.

Regulatory compliance consultancies 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 regulatory compliance consultancies, 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 regulatory compliance consultancies are there based in the United States?

RevenueBase identified 2,152 regulatory compliance consultancies headquartered in the United States as of September 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 regulatory compliance consultancies?

New York leads with 112 headquartered companies, followed by Washington (53) and Houston (44).

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 8,951 verified decision-maker contacts tracked across these 2,152 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 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.