Company lists · Data refreshed September 2026

Top 25 Sec compliance law firms worldwide

Name: Sec compliance law firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 11,975 companies tracked

RevenueBase identified 11,975 sec compliance law firms worldwide as of September 2026 and tracks 183,225 professional contacts across them, including 83,205 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers sec compliance 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 29, 2026. Country and city lists for sec compliance 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 29, 2026 86% judged on-target in blind review

11,975Companies

183,225Contacts tracked

83,205Verified emails

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The 25 largest sec compliance law firms worldwide

Ranked by team size

Top 25 of 11,975 sec compliance law firms worldwide, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to sec compliance 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Maples Group	Partial evidence	George Town, United StatesHQ checked Sep 29, 2026	1,001-5,000	2,754 contacts →
	Partial evidence “The Maples Group is a leading service provider offering clients a comprehensive range of legal services on the laws of the British Virgin Islands, the Cayman Islands, Ireland…” Source: RevenueBase Database · checked Sep 29, 2026
2	Morrison Foerster	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 29, 2026	1,001-5,000	2,667 contacts →
	Indirect evidence “Morrison Foerster transforms complexity into advantage.” Source: RevenueBase Database · checked Sep 29, 2026
3	Arnold & Porter	Indirect evidence	Washington, DC, United StatesHQ checked Sep 29, 2026	1,001-5,000	2,333 contacts →
	Indirect evidence “Arnold & Porter combines sophisticated regulatory, litigation, and transactional capabilities to resolve clients’ most complex issues.” Source: RevenueBase Database · checked Sep 29, 2026
4	Nelson Wilians Advogados	Indirect evidence	São Paulo, BrazilHQ checked Sep 29, 2026	1,001-5,000	2,267 contacts →
	Indirect evidence “Desde a NWADV transforma desafios jurídicos complexos em decisões mais seguras para empresas nacionais e internacionais.” Source: RevenueBase Database · checked Sep 29, 2026
5	Dechert LLP	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 29, 2026	1,001-5,000	2,041 contacts →
	Partial evidence “Dechert is the law firm that helps business leaders lead.” Source: RevenueBase Database · checked Sep 29, 2026
6	Nelson Mullins Riley & Scarborough	Partial evidence	Columbia, SC, United StatesHQ checked Sep 29, 2026	1,001-5,000	2,012 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 29, 2026
7	Venable LLP	Strong evidence	Washington, DC, United StatesHQ checked Sep 29, 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 29, 2026
8	Clayton UTZ	Partial evidence	Sydney, AustraliaHQ checked Sep 29, 2026	1,001-5,000	1,787 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 29, 2026
9	Cyril Amarchand Mangaldas	Partial evidence	Mumbai, IndiaHQ checked Sep 29, 2026	1,001-5,000	1,756 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 29, 2026
10	Donnelley Financial Solutions Dfin	Partial evidence	Lancaster, PA, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,740 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 29, 2026
11	Vinson & Elkins	Partial evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,693 contacts →
	Partial evidence “Vinson & Elkins is a law firm of global distinction, working with leading companies on wide-ranging matters in key industries across the economy.” Source: RevenueBase Database · checked Sep 29, 2026
12	Ballard Spahr LLP	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,682 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 29, 2026
13	Tozzinifreire Advogados	Partial evidence	São Paulo, BrazilHQ checked Sep 29, 2026	1,001-5,000	1,580 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 29, 2026
14	Walkers	Strong evidence	George Town, Cayman IslandsHQ checked Sep 29, 2026	1,001-5,000	1,539 contacts →
	Strong evidence “Walkers is a leading international law firm that provides legal, corporate, fiduciary and compliance services to global corporations, financial institutions, capital markets…” Source: RevenueBase Database · checked Sep 29, 2026
15	Clark Hill LAW	Indirect evidence	Detroit, MI, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,343 contacts →
	Indirect evidence “At Clark Hill, our value proposition is simple.” Source: RevenueBase Database · checked Sep 29, 2026
16	Quarles & Brady LLP	Indirect evidence	Milwaukee, WI, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,318 contacts →
	Indirect evidence “For over 125 years, Quarles & Brady LLP has provided quality legal services to a wide range of industries on a national stage.” Source: RevenueBase Database · checked Sep 29, 2026
17	Snell & Wilmer	Partial evidence	Phoenix, AZ, United StatesHQ checked Sep 29, 2026	501-1,000	1,219 contacts →
	Partial evidence “Founded in 1938, Snell & Wilmer is a full-service business law firm with more than 500 lawyers practicing in 17 locations throughout the United States and in Mexico.” Source: RevenueBase Database · checked Sep 29, 2026
18	Buchanan Ingersoll & Rooney PC	Partial evidence	Pittsburgh, PA, United StatesHQ checked Sep 29, 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 29, 2026
19	Hinshaw & Culbertson LLP	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	501-1,000	1,188 contacts →
	Partial evidence “Hinshaw & Culbertson LLP is a U.S-based law firm with offices nationwide.” Source: RevenueBase Database · checked Sep 29, 2026
20	Stinson LLP	Indirect evidence	500 Attorneys. 17 Locations Nationwide., MN, United StatesHQ checked Sep 29, 2026	501-1,000	1,167 contacts →
	Indirect evidence “Stinson LLP collaborates with clients ranging from individuals and privately held enterprises to national companies and international public corporations.” Source: RevenueBase Database · checked Sep 29, 2026
21	AZB & Partners	Indirect evidence	Mumbai, IndiaHQ checked Sep 29, 2026	501-1,000	1,128 contacts →
	Indirect evidence “AZB & Partners was founded in 2004 with a clear purpose to provide reliable, practical and full-service advice to clients, across all sectors.” Source: RevenueBase Database · checked Sep 29, 2026
22	Quintairos, Prieto, Wood & Boyer, P.A	Partial evidence	Miami, FL, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,068 contacts →
	Partial evidence “Over the past 25 years, QPWB is one of the fastest-growing law firms in the US.” Source: RevenueBase Database · checked Sep 29, 2026
23	A&l Goodbody LLP	Partial evidence	Dublin 1, IrelandHQ checked Sep 29, 2026	501-1,000	998 contacts →
	Partial evidence “A&L Goodbody is one of Ireland's leading corporate law firms.” Source: RevenueBase Database · checked Sep 29, 2026
24	Thompson Coburn LLP	Partial evidence	Saint Louis, MO, United StatesHQ checked Sep 29, 2026	501-1,000	938 contacts →
	Partial evidence “Thompson Coburn is a full-service, values-driven law firm with offices strategically located in Birmingham, Chicago, Dallas, Los Angeles, New York, Southern Illinois, St.” Source: RevenueBase Database · checked Sep 29, 2026
25	YES Securities	Indirect evidence	Mumbai, IndiaHQ checked Sep 29, 2026	501-1,000	916 contacts →
	Indirect evidence “Combining our vast knowledge, experience and intuitive understanding of the markets to help our customers make WiZe investment choices!” 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: sec compliance law 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 sec compliance law firms.
Partial evidence: Its own public description names part of sec compliance law firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name sec compliance law 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 11,975 sec compliance law firms worldwide

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Sec compliance law firms worldwide at a glance

As of Sep 29, 2026

45.4%Verified-email coverage

15.3Average contacts per company

1-10Median size (employees)

3.2%Largest-city concentration · Sao Paulo

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

7,662

11-50

3,450

51-200

593

201-500

145

501-1,000

1,001-5,000

5,001-10,000

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 sec compliance 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 sec compliance law firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “sec compliance 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 sec compliance 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 sec compliance 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, 83,205 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.

Sec compliance law firms by location

82 lists · largest first

Every Sec compliance 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 sec compliance 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 sec compliance law firms are there worldwide?

RevenueBase identified 11,975 sec compliance 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?

Maples Group, headquartered in George Town Grand Cayman, tops this list with the largest team on record.

Which country has the most sec compliance law firms?

The United States leads with 3,406 companies, followed by Brazil (1,513) and India (869). Every sec compliance law firms list by country and city is linked on this page.

Which city has the most sec compliance law firms?

Sao Paulo leads with 386 headquartered companies, followed by New York (268) and Paris (174).

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 83,205 verified decision-maker contacts tracked across these 11,975 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.