Company lists · Data refreshed September 2026

Top 25 Legal compliance outsourcing companies based in the United States

Name: Legal compliance outsourcing companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 4, 2026 522 companies tracked

RevenueBase identified 522 legal compliance outsourcing companies headquartered in the United States as of September 2026 and tracks 8,037 professional contacts across them, including 2,873 with verified work emails and 3,226 with mobile numbers. New York is the largest hub.

This list covers legal compliance outsourcing companies 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 4, 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 4, 2026 86% judged on-target in blind review

522Companies

8,037Contacts tracked

2,873Verified emails

3,226Mobile numbers

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The 25 largest legal compliance outsourcing companies based in the United States

Ranked by team size

Top 25 of 522 legal compliance outsourcing companies based in the United States, ranked by team size, largest first. Data refreshed Sep 4, 2026. RevenueBase Smart Search rates how each company's information relates to legal compliance outsourcing companies: 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	Donnelley Financial Solutions Dfin	Partial evidence	Lancaster, PA, United StatesHQ checked Sep 4, 2026	1,001-5,000	1,763 contacts →
	Partial evidence “DFIN is the leading global provider of compliance and regulatory software and services, fueling end-to-end investment company regulatory compliance needs, complex capital markets…” Source: RevenueBase Database · checked Sep 4, 2026
2	CT Corporation	Strong evidence	New York, NY, United StatesHQ checked Sep 4, 2026	1,001-5,000	788 contacts →
	Strong 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 4, 2026
3	GSA National	Partial evidence	Fairfax, VA, United StatesHQ checked Sep 4, 2026	201-500	558 contacts →
	Partial evidence “GSA National has been helping government contractors ensure compliance and streamline costs since 1991.” Source: RevenueBase Database · checked Sep 4, 2026
4	DTI LLC	Strong evidence	Atlanta, GA, United StatesHQ checked Sep 4, 2026	1,001-5,000	543 contacts →
	Strong evidence “Founded in 1998, DTI is an industry leading legal process outsourcing (LPO) company serving law firms and corporations around the world.” Source: RevenueBase Database · checked Sep 4, 2026
5	Comply	Partial evidence	New York City, NY, United StatesHQ checked Sep 4, 2026	201-500	299 contacts →
	Partial evidence “At Comply, we pride ourselves on being the champion for compliance professionals.” Source: RevenueBase Database · checked Sep 4, 2026
6	Complyright, INC	Indirect evidence	Pompano Beach, CA, United StatesHQ checked Sep 4, 2026	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 Sep 4, 2026
7	Neosystems LLC	Indirect evidence	Reston, VA, United StatesHQ checked Sep 4, 2026	51-200	178 contacts →
	Indirect evidence “On May 1, 2026, NeoSystems Enterprise Solutions Group (ESG) was acquired by BlueStreet Solutions Inc.” Source: RevenueBase Database · checked Sep 4, 2026
8	Harbor Compliance	Partial evidence	Lancaster, PA, United StatesHQ checked Sep 4, 2026	201-500	149 contacts →
	Partial evidence “We provide innovative compliance solutions by embracing complexity and making it simple.” Source: RevenueBase Database · checked Sep 4, 2026
9	Legal Outsourcing 2.0	Strong evidence	New York, NY, United StatesHQ checked Sep 4, 2026	51-200	140 contacts →
	Strong evidence “Legal Outsourcing 2.0, as the name suggests, is the next generation of Legal Process Outsourcing.” Source: RevenueBase Database · checked Sep 4, 2026
10	Trendsource, INC	Partial evidence	San Diego, CA, United StatesHQ checked Sep 4, 2026	11-50	140 contacts →
	Partial evidence “TrendSource helps businesses document and measure compliance across employment, consumer reporting, government, finance, health care, and retail.” Source: RevenueBase Database · checked Sep 4, 2026
11	Allsec Technologies Limited	Partial evidence	Irving, TX, United StatesHQ checked Sep 4, 2026	1,001-5,000	104 contacts →
	Partial evidence “Allsec Technologies is a global outsourcing solutions provider, serving over 600 companies in 42+ countries.” Source: RevenueBase Database · checked Sep 4, 2026
12	Govdocs, INC	Partial evidence	Eagan, MN, United StatesHQ checked Sep 4, 2026	51-200	68 contacts →
	Partial evidence “GovDocs is a leading provider of employment law compliance solutions, empowering HR professionals to navigate complex, location-specific labor law postings, minimum wage…” Source: RevenueBase Database · checked Sep 4, 2026
13	Glocal LPO	Indirect evidence	Wilmington, DE, United StatesHQ checked Sep 4, 2026	201-500	61 contacts →
	Indirect evidence “Welcome to Glocal LPO – Where U.S.” Source: RevenueBase Database · checked Sep 4, 2026
14	Quest CE	Partial evidence	Milwaukee, WI, United StatesHQ checked Sep 4, 2026	51-200	60 contacts →
	Partial evidence “Quest CE helps financial service organizations manage their compliance operations by offering firm training programs, disclosure tracking services and branch audit solutions.” Source: RevenueBase Database · checked Sep 4, 2026
15	Compliance Risk Concepts CRC	Indirect evidence	New York, NY, United StatesHQ checked Sep 4, 2026	11-50	60 contacts →
	Indirect evidence “To meet rigorous regulatory expectations and requirements, it is imperative that organizations have access to “best in class” talent that has extensive knowledge of the businesses…” Source: RevenueBase Database · checked Sep 4, 2026
16	MMC HR	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 4, 2026	51-200	52 contacts →
	Partial evidence “MMC HR is the pioneer and a leading provider of Human Resources Outsourcing and Consulting services, offering support in all key aspects of H.R.” Source: RevenueBase Database · checked Sep 4, 2026
17	Qtat BPO Solutions INC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 4, 2026	201-500	47 contacts →
	Indirect evidence “Incorporated in 2006, QTAT BPO Solutions is a Houston Based Information Technology Enabled Services ( ITES ) and Internet Marketing Company with global delivery centers.” Source: RevenueBase Database · checked Sep 4, 2026
18	Vigilant Compliance	Partial evidence	Chadds Ford, PA, United StatesHQ checked Sep 4, 2026	11-50	44 contacts →
	Partial evidence “Vigilant is an Award Winning and Industry Leading Compliance Firm that continues to remain Independent and Privately Owned.” Source: RevenueBase Database · checked Sep 4, 2026
19	HAAST	Partial evidence	New York, United StatesHQ checked Sep 4, 2026	11-50	44 contacts →
	Partial evidence “We help enterprise businesses manage compliance risk, enabling them to find and resolve regulatory compliance issues, across their entire digital and marketing presence.” Source: RevenueBase Database · checked Sep 4, 2026
20	Accel Compliance	Partial evidence	West Hartford, CT, United StatesHQ checked Sep 4, 2026	11-50	36 contacts →
	Partial evidence “Simplifying agency compliance.” Source: RevenueBase Database · checked Sep 4, 2026
21	Orical LLC	Partial evidence	New York, NY, United StatesHQ checked Sep 4, 2026	11-50	35 contacts →
	Partial evidence “Compliance Solutions With Best in Class Operational Support Orical LLC offers the best-in-class, customized, practical and technical solutions for the compliance, operations and…” Source: RevenueBase Database · checked Sep 4, 2026
22	Costaff Services, LLC	Indirect evidence	Royal Oak, MI, United StatesHQ checked Sep 4, 2026	11-50	34 contacts →
	Indirect evidence “At CoStaff, we understand that you are in business to grow your business.” Source: RevenueBase Database · checked Sep 4, 2026
23	HR Service, INC	Indirect evidence	Draper, UT, United StatesHQ checked Sep 4, 2026	11-50	32 contacts →
	Indirect evidence “HR made simple.” Source: RevenueBase Database · checked Sep 4, 2026
24	CDMS	Partial evidence	Pleasanton, CA, United StatesHQ checked Sep 4, 2026	11-50	31 contacts →
	Partial evidence “Founded in 1988, CDMS provides a full range of EPA and Cal-OSHA regulatory compliance services.” Source: RevenueBase Database · checked Sep 4, 2026
25	Potomac River Partners	Indirect evidence	Arlington, VA, United StatesHQ checked Sep 4, 2026	11-50	27 contacts →
	Indirect evidence “Potomac River Partners is a specialized management consulting firm offering a variety of services to meet our clients’ challenges.” Source: RevenueBase Database · checked Sep 4, 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: legal compliance outsourcing companies. 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 legal compliance outsourcing companies.
Partial evidence: Its own public description names part of legal compliance outsourcing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name legal compliance outsourcing companies. 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 522 legal compliance outsourcing companies based in the United States

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Legal compliance outsourcing companies based in the United States at a glance

As of Sep 4, 2026

35.7%Verified-email coverage

40.1%Mobile-number coverage

15.4Average contacts per company

1-10Median size (employees)

6.3%Largest-city concentration · New York

Sep 4, 2026Page data refreshed

Companies by employee count

1-10

330

11-50

138

51-200

201-500

501-1,000

1,001-5,000

10001+

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

00–30

23331–60

1,53561–90

1,07890–180

27180+

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 legal compliance outsourcing companies, 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 “legal compliance outsourcing companies”. 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 legal compliance outsourcing companies), 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 legal compliance outsourcing companies, 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, 2,873 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 4, 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.

Legal compliance outsourcing companies by metro

Legal compliance outsourcing companies in New York33

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 legal compliance outsourcing companies, 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 legal compliance outsourcing companies are there based in the United States?

RevenueBase identified 522 legal compliance outsourcing companies 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?

Donnelley Financial Solutions Dfin, headquartered in Lancaster, tops this list with the largest team on record.

Which city has the most legal compliance outsourcing companies?

New York leads with 33 headquartered companies, followed by Washington (13) and Houston (11).

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 2,873 verified decision-maker contacts tracked across these 522 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 4, 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.