Company lists · Data refreshed September 2026

Top 25 Regulatory compliance attorneys worldwide

Name: Regulatory compliance attorneys worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 6,004 companies tracked

RevenueBase identified 6,004 regulatory compliance attorneys worldwide as of September 2026 and tracks 57,298 professional contacts across them, including 18,538 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers regulatory compliance attorneys worldwide, 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 21, 2026. Country and city lists for regulatory compliance attorneys follow the table.

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 21, 2026 86% judged on-target in blind review

6,004Companies

57,298Contacts tracked

18,538Verified emails

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The 25 largest regulatory compliance attorneys worldwide

Ranked by team size

Top 25 of 6,004 regulatory compliance attorneys worldwide, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to regulatory compliance attorneys: 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	Arnold & Porter	Partial evidence	Washington, DC, United StatesHQ checked Sep 21, 2026	1,001-5,000	2,333 contacts →
	Partial evidence “Arnold & Porter combines sophisticated regulatory, litigation, and transactional capabilities to resolve clients’ most complex issues.” Source: RevenueBase Database · checked Sep 21, 2026
2	Aparajitha Corporate Services Private Limited	Strong evidence	Madurai, IndiaHQ checked Sep 21, 2026	1,001-5,000	2,064 contacts →
	Strong evidence “Aparajitha: Revolutionising India's Regulatory Compliance Space With 25 years of experience, Aparajitha covers compliance for over establishments, factories, and 52 lakh contract…” Source: RevenueBase Database · checked Sep 21, 2026
3	Venable LLP	Strong evidence	Washington, DC, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,790 contacts →
	Strong evidence “Committed to Your Success – As a law firm of more than 900 professionals, Venable delivers legal services globally in every area of regulatory compliance, government affairs…” Source: RevenueBase Database · checked Sep 21, 2026
4	Ballard Spahr LLP	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,682 contacts →
	Indirect evidence “Ballard Spahr LLP, an Am Law 100 law firm with more than 750 lawyers in 19 U.S.” Source: RevenueBase Database · checked Sep 21, 2026
5	Buchanan Ingersoll & Rooney PC	Partial evidence	Pittsburgh, PA, United StatesHQ checked Sep 21, 2026	501-1,000	1,197 contacts →
	Partial evidence “Buchanan Ingersoll & Rooney is a national law firm with a proven reputation for providing progressive, industry-leading legal, business, regulatory and government relations advice…” Source: RevenueBase Database · checked Sep 21, 2026
6	Hinshaw & Culbertson LLP	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	501-1,000	1,188 contacts →
	Indirect evidence “Hinshaw & Culbertson LLP is a U.S-based law firm with offices nationwide.” Source: RevenueBase Database · checked Sep 21, 2026
7	Brownstein Hyatt Farber Schreck	Indirect evidence	Denver, CO, United StatesHQ checked Sep 21, 2026	501-1,000	902 contacts →
	Indirect evidence “For decades, we’ve positioned ourselves at the intersection of law, business and policy to bring a multidisciplinary strategy to every issue.” Source: RevenueBase Database · checked Sep 21, 2026
8	Hall Booth Smith, P.C	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	501-1,000	815 contacts →
	Indirect evidence “Established in 1989, Hall Booth Smith, P.C.(HBS) is a full-service law firm with 33 offices across the United States.” Source: RevenueBase Database · checked Sep 21, 2026
9	CT Corporation	Partial evidence	New York, NY, United StatesHQ checked Sep 21, 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 21, 2026
10	Kelley Drye & Warren LLP	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	501-1,000	690 contacts →
	Indirect evidence “Kelley Drye is an AmLaw 200 law firm of more than 350 lawyers and other professionals practicing in New York, NY; Washington, D.C; Chicago, IL; Houston, TX, Los Angeles, CA; San…” Source: RevenueBase Database · checked Sep 21, 2026
11	Wiley Rein LLP	Indirect evidence	Washington, DC, United StatesHQ checked Sep 21, 2026	501-1,000	576 contacts →
	Indirect evidence “Founded in 1983, Wiley is a dominant presence in the nation’s capital.” Source: RevenueBase Database · checked Sep 21, 2026
12	Marcelo Tostes Advogados	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 21, 2026	201-500	518 contacts →
	Indirect evidence “Fundado em o Marcelo Tostes Advogados firmou-se como um escritório de advocacia empresarial de excelência.” Source: RevenueBase Database · checked Sep 21, 2026
13	Post & Schell, P.C	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 21, 2026	201-500	336 contacts →
	Partial evidence “For over 50 years, Post & Schell’s attorneys have combined the operational knowledge and insight into the industries they represent with creative legal solutions – and helped…” Source: RevenueBase Database · checked Sep 21, 2026
14	Serr Synergy	Indirect evidence	Pretoria East, South AfricaHQ checked Sep 21, 2026	201-500	330 contacts →
	Indirect evidence “We provide local and international businesses, ranging from SMME's to large organizations and across a broad spectrum of industries, with tailor-made strategies and solutions to…” Source: RevenueBase Database · checked Sep 21, 2026
15	Comply	Partial evidence	New York City, NY, United StatesHQ checked Sep 21, 2026	201-500	308 contacts →
	Partial evidence “At Comply, we pride ourselves on being the champion for compliance professionals.” Source: RevenueBase Database · checked Sep 21, 2026
16	Mcnees Wallace & Nurick	Indirect evidence	Harrisburg, PA, United StatesHQ checked Sep 21, 2026	201-500	307 contacts →
	Indirect evidence “Since 1935, McNees Wallace & Nurick has been a trusted, client-focused law firm delivering practical, results-driven legal solutions to businesses, individuals, and organizations.” Source: RevenueBase Database · checked Sep 21, 2026
17	Wilmington PLC	Indirect evidence	Birmingham, United KingdomHQ checked Sep 21, 2026	501-1,000	242 contacts →
	Indirect evidence “We help our customers to do the right business in the right way.” Source: RevenueBase Database · checked Sep 21, 2026
18	Galicia Mexico	Partial evidence	México, MexicoHQ checked Sep 21, 2026	201-500	239 contacts →
	Partial evidence “GALICIA was founded in 1994 and has since become Mexico´s leading transactional firm with strong regulatory offering supported by its strategic litigation capabilities.” Source: RevenueBase Database · checked Sep 21, 2026
19	Keller And Heckman LLP	Partial evidence	Washington, DC, United StatesHQ checked Sep 21, 2026	51-200	230 contacts →
	Partial evidence “Keller and Heckman, founded in 1962, has a broad practice in the areas of regulatory law, public policy, and litigation, serving both domestic and international clients.” Source: RevenueBase Database · checked Sep 21, 2026
20	Suresh & CO	Partial evidence	Bengaluru, IndiaHQ checked Sep 21, 2026	51-200	199 contacts →
	Partial evidence “We are a trusted advisory and compliance firm known for integrity, technical depth, and commercial practicality.” Source: RevenueBase Database · checked Sep 21, 2026
21	Bengo4.com,inc	Indirect evidence	港区, JapanHQ checked Sep 21, 2026	201-500	197 contacts →
	Indirect evidence “BUSINESS LAWYERS VISION Drive a paradigm shift for the better world.” Source: RevenueBase Database · checked Sep 21, 2026
22	Epista Life Science	Partial evidence	Hørsholm, DenmarkHQ checked Sep 21, 2026	51-200	194 contacts →
	Partial evidence “Epista Life Science is a team of experts working at the intersection of business priorities and compliance requirements.” Source: RevenueBase Database · checked Sep 21, 2026
23	Babst Calland	Partial evidence	Pittsburgh, PA, United StatesHQ checked Sep 21, 2026	51-200	192 contacts →
	Partial evidence “As a collaborative and integrated group of attorneys, we work as a unified team, not as sole practitioners.” Source: RevenueBase Database · checked Sep 21, 2026
24	Nysingh Lawyers And Notaries	Indirect evidence	Utrecht, NetherlandsHQ checked Sep 21, 2026	201-500	191 contacts →
	Indirect evidence “In a society that poses a plethora of legal challenges to businesses, public authorities and healthcare providers, Nysingh has been a reliable legal partner for 150 years.” Source: RevenueBase Database · checked Sep 21, 2026
25	Complyright, INC	Indirect evidence	Pompano Beach, FL, United StatesHQ checked Sep 21, 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 21, 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 attorneys. 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 attorneys.
Partial evidence: Its own public description names part of regulatory compliance attorneys, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name regulatory compliance attorneys. 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 6,004 regulatory compliance attorneys worldwide

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Regulatory compliance attorneys worldwide at a glance

As of Sep 21, 2026

32.4%Verified-email coverage

9.5Average contacts per company

1-10Median size (employees)

4.1%Largest-city concentration · Sao Paulo

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

4,415

11-50

1,337

51-200

183

201-500

501-1,000

1,001-5,000

10001+

Email recency is reported on each country list linked below.

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 attorneys, 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.
Coverage: Every country. Country and city lists for regulatory compliance attorneys are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “regulatory compliance attorneys”. 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 attorneys), 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 attorneys, and records with no verified work email.
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, 18,538 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 21, 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 attorneys by location

33 lists · largest first

Every Regulatory compliance attorneys list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 attorneys, 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 attorneys are there worldwide?

RevenueBase identified 6,004 regulatory compliance attorneys worldwide 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?

Arnold & Porter, headquartered in Washington, tops this list with the largest team on record.

Which country has the most regulatory compliance attorneys?

The United States leads with 1,117 companies, followed by Brazil (868) and India (382). Every regulatory compliance attorneys list by country and city is linked on this page.

Which city has the most regulatory compliance attorneys?

Sao Paulo leads with 246 headquartered companies, followed by Washington (95) and London (82).

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 18,538 verified decision-maker contacts tracked across these 6,004 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 21, 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.