Company lists · Data refreshed September 2026

Top 25 Compliance and regulatory law firms worldwide

RevenueBase identified 23,042 compliance and regulatory law firms worldwide as of September 2026 and tracks 280,679 professional contacts across them, including 106,803 with verified work emails. Brazil is the largest market and Sao Paulo the largest hub.

This list covers compliance and regulatory law firms 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 27, 2026. Country and city lists for compliance and regulatory law firms 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 27, 2026 86% judged on-target in blind review
23,042Companies
280,679Contacts tracked
106,803Verified emails
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The 25 largest compliance and regulatory law firms worldwide

Ranked by team size
Top 25 of 23,042 compliance and regulatory law firms worldwide, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to compliance and regulatory law 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceLondon, United KingdomHQ checked Sep 27, 2026n/a6,284 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 27, 2026
2Partial evidencePalo Alto, CA, United StatesHQ checked Sep 27, 20261,001-5,0003,341 contacts →

Partial evidence

“Clients partner with Cooley on transformative deals, complex IP and regulatory matters, and high-stakes litigation.”

Source: RevenueBase Database · checked Sep 27, 2026
3Partial evidenceAustraliaHQ checked Sep 27, 20261,001-5,0002,667 contacts →

Partial evidence

“MinterEllison is one of Australia’s largest independent law and consulting firms.”

Source: RevenueBase Database · checked Sep 27, 2026
4Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 27, 20261,001-5,0002,667 contacts →

Indirect evidence

“Morrison Foerster transforms complexity into advantage.”

Source: RevenueBase Database · checked Sep 27, 2026
5Partial evidenceWashington, DC, United StatesHQ checked Sep 27, 20261,001-5,0002,333 contacts →

Partial evidence

“Arnold & Porter combines sophisticated regulatory, litigation, and transactional capabilities to resolve clients’ most complex issues.”

Source: RevenueBase Database · checked Sep 27, 2026
6Indirect evidenceSão Paulo, BrazilHQ checked Sep 27, 20261,001-5,0002,267 contacts →

Indirect evidence

“Desde a NWADV transforma desafios jurídicos complexos em decisões mais seguras para empresas nacionais e internacionais.”

Source: RevenueBase Database · checked Sep 27, 2026
7Indirect evidenceChicago, IL, United StatesHQ checked Sep 27, 20261,001-5,0002,167 contacts →

Indirect evidence

“High stakes.”

Source: RevenueBase Database · checked Sep 27, 2026
8Strong evidenceMadurai, IndiaHQ checked Sep 27, 20261,001-5,0002,064 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 27, 2026
9Partial evidencePhiladelphia, PA, United StatesHQ checked Sep 27, 20261,001-5,0002,041 contacts →

Partial evidence

“Dechert is the law firm that helps business leaders lead.”

Source: RevenueBase Database · checked Sep 27, 2026
10Partial evidenceColumbia, SC, United StatesHQ checked Sep 27, 20261,001-5,0002,012 contacts →

Partial evidence

“Established in 1897, Nelson Mullins is an Am Law 100 firm of more than attorneys, policy advisors and professionals with 33 offices in 17 states and Washington, D.C.”

Source: RevenueBase Database · checked Sep 27, 2026
11Indirect evidenceCincinnati, OH, United StatesHQ checked Sep 27, 20261,001-5,0001,980 contacts →

Indirect evidence

“At Taft, we work as one team, driven and committed to helping you succeed.”

Source: RevenueBase Database · checked Sep 27, 2026
12Partial evidenceNew York, NY, United StatesHQ checked Sep 27, 20261,001-5,0001,949 contacts →

Partial evidence

“Pillsbury is one of the world’s foremost law firms, operating at the intersection of technology innovation, capital and government.”

Source: RevenueBase Database · checked Sep 27, 2026
13Partial evidenceMumbai, IndiaHQ checked Sep 27, 20261,001-5,0001,926 contacts →

Partial evidence

“Trilegal is a leading full-service law firm in India with over 25 years of experience, known for its depth of expertise and client-focused approach.”

Source: RevenueBase Database · checked Sep 27, 2026
14Indirect evidencePhiladelphia, PA, United StatesHQ checked Sep 27, 20261,001-5,0001,848 contacts →

Indirect evidence

“Faegre Drinker is a firm designed for clients.”

Source: RevenueBase Database · checked Sep 27, 2026
15Strong evidenceWashington, DC, United StatesHQ checked Sep 27, 20261,001-5,0001,790 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 27, 2026
16Partial evidenceSydney, AustraliaHQ checked Sep 27, 20261,001-5,0001,787 contacts →

Partial evidence

“We are one of Australia's oldest and largest law firms, with offices in six cities, nearly 200 partners, and a full range of legal services for large private sector and government…”

Source: RevenueBase Database · checked Sep 27, 2026
17Partial evidenceMumbai, IndiaHQ checked Sep 27, 20261,001-5,0001,756 contacts →

Partial evidence

“Cyril Amarchand Mangaldas (CAM) is India’s leading law firm with a global reputation of being trusted advisers to its clients.”

Source: RevenueBase Database · checked Sep 27, 2026
18Partial evidencePhiladelphia, PA, United StatesHQ checked Sep 27, 20261,001-5,0001,682 contacts →

Partial evidence

“Ballard Spahr LLP, an Am Law 100 law firm with more than 750 lawyers in 19 U.S.”

Source: RevenueBase Database · checked Sep 27, 2026
19Partial evidenceWashington, DC, United StatesHQ checked Sep 27, 20261,001-5,0001,602 contacts →

Partial evidence

“Crowell & Moring is an international law firm with operations in the United States, Europe, MENA, and Asia.”

Source: RevenueBase Database · checked Sep 27, 2026
20Partial evidenceSão Paulo, BrazilHQ checked Sep 27, 20261,001-5,0001,580 contacts →

Partial evidence

“TozziniFreire is one of the leading legal services organizations in Latin America, operating in all areas of Business Law and with a significant track record in serving national…”

Source: RevenueBase Database · checked Sep 27, 2026
21Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 27, 2026501-1,0001,471 contacts →

Indirect evidence

“With hundreds of attorneys across the globe, Fisher Phillips advises and advocates for employers internationally on some of the most complex and high-profile workplace matters.”

Source: RevenueBase Database · checked Sep 27, 2026
22Indirect evidenceDetroit, MI, United StatesHQ checked Sep 27, 20261,001-5,0001,343 contacts →

Indirect evidence

“At Clark Hill, our value proposition is simple.”

Source: RevenueBase Database · checked Sep 27, 2026
23Indirect evidenceSão Paulo, BrazilHQ checked Sep 27, 20261,001-5,0001,250 contacts →

Indirect evidence

“Pinheiro Neto Advogados é um escritório brasileiro com sólida experiência em mais de 40 áreas do Direito Empresarial.”

Source: RevenueBase Database · checked Sep 27, 2026
24Partial evidenceLiverpool, United KingdomHQ checked Sep 27, 20261,001-5,0001,231 contacts →

Partial evidence

“An unpredictable world calls for a progressive-thinking law firm that’s aligned to your ambitions.”

Source: RevenueBase Database · checked Sep 27, 2026
25Strong evidencePittsburgh, PA, United StatesHQ checked Sep 27, 2026501-1,0001,197 contacts →

Strong 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 27, 2026

Showing 25 of 23,042 compliance and regulatory law firms worldwide

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Compliance and regulatory law firms worldwide at a glance

As of Sep 27, 2026
38.1%Verified-email coverage
12.2Average contacts per company
1-10Median size (employees)
4.4%Largest-city concentration · Sao Paulo
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
15,829
11-50
6,003
51-200
873
201-500
151
501-1,000
49
1,001-5,000
47
5,001-10,000
3
10001+
5

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 compliance and regulatory law 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.
Coverage
Every country. Country and city lists for compliance and regulatory law firms are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “compliance and regulatory law 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 and regulatory law 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 and regulatory law firms, 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, 106,803 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 27, 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 and regulatory law firms by location

114 lists · largest first

Every Compliance and regulatory law firms 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 compliance and regulatory law 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 and regulatory law firms are there worldwide?

RevenueBase identified 23,042 compliance and regulatory law firms 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?

LAW Firm, headquartered in London, tops this list with the largest team on record.

Which country has the most compliance and regulatory law firms?

Brazil leads with 4,160 companies, followed by the United States (3,276) and India (1,262). Every compliance and regulatory law firms list by country and city is linked on this page.

Which city has the most compliance and regulatory law firms?

Sao Paulo leads with 1025 headquartered companies, followed by Paris (408) and London (307).

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 106,803 verified decision-maker contacts tracked across these 23,042 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 27, 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.