Company lists · Data refreshed September 2026

Top 25 Financial services compliance law firms worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 13,351 companies tracked

RevenueBase identified 13,351 financial services compliance law firms worldwide as of September 2026 and tracks 193,695 professional contacts across them, including 73,963 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers financial services 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 28, 2026. Country and city lists for financial services 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 28, 2026 86% judged on-target in blind review

13,351Companies

193,695Contacts tracked

73,963Verified emails

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The 25 largest financial services compliance law firms worldwide

Ranked by team size

Top 25 of 13,351 financial services compliance law firms worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to financial services 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	LAW Firm	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	n/a	6,284 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
2	Maples Group	Partial evidence	George Town, United StatesHQ checked Sep 28, 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 28, 2026
3	Morrison Foerster	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,667 contacts →
	Indirect evidence “Morrison Foerster transforms complexity into advantage.” Source: RevenueBase Database · checked Sep 28, 2026
4	Arnold & Porter	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 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 28, 2026
5	Nelson Wilians Advogados	Indirect evidence	São Paulo, BrazilHQ checked Sep 28, 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 28, 2026
6	Dechert LLP	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 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 28, 2026
7	Nelson Mullins Riley & Scarborough	Partial evidence	Columbia, SC, United StatesHQ checked Sep 28, 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 28, 2026
8	Slaughter And MAY	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	1,951 contacts →
	Partial evidence “Slaughter and May is regarded as one of the most prestigious law firms in the world.” Source: RevenueBase Database · checked Sep 28, 2026
9	Trilegal	Partial evidence	Mumbai, IndiaHQ checked Sep 28, 2026	1,001-5,000	1,926 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 28, 2026
10	Venable LLP	Strong evidence	Washington, DC, United StatesHQ checked Sep 28, 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 28, 2026
11	Cyril Amarchand Mangaldas	Partial evidence	Mumbai, IndiaHQ checked Sep 28, 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 28, 2026
12	Ballard Spahr LLP	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 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 28, 2026
13	Tozzinifreire Advogados	Partial evidence	São Paulo, BrazilHQ checked Sep 28, 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 28, 2026
14	Blake, Cassels & Graydon LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 28, 2026	1,001-5,000	1,555 contacts →
	Indirect evidence “At Blake, Cassels & Graydon LLP (Blakes), we serve a diverse national and international client base.” Source: RevenueBase Database · checked Sep 28, 2026
15	Mattos Filho	Indirect evidence	São Paulo, BrazilHQ checked Sep 28, 2026	1,001-5,000	1,553 contacts →
	Indirect evidence “Somos um dos escritórios de advocacia líderes do mercado brasileiro, estruturado para atender nossos clientes em mais de 45 áreas do Direito, de maneira coordenada e integrada.” Source: RevenueBase Database · checked Sep 28, 2026
16	Walkers	Strong evidence	George Town, Cayman IslandsHQ checked Sep 28, 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 28, 2026
17	Clark Hill LAW	Indirect evidence	Detroit, MI, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,343 contacts →
	Indirect evidence “At Clark Hill, our value proposition is simple.” Source: RevenueBase Database · checked Sep 28, 2026
18	Pinheiro Neto Advogados	Indirect evidence	São Paulo, BrazilHQ checked Sep 28, 2026	1,001-5,000	1,250 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 28, 2026
19	Buchanan Ingersoll & Rooney PC	Partial evidence	Pittsburgh, PA, United StatesHQ checked Sep 28, 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 28, 2026
20	True Potential LLP	Partial evidence	Newcastle Upon Tyne, United KingdomHQ checked Sep 28, 2026	501-1,000	1,189 contacts →
	Partial evidence “Through our industry leading technology and services, we power the businesses of 20% of the UK financial adviser market.” Source: RevenueBase Database · checked Sep 28, 2026
21	Hinshaw & Culbertson LLP	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 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 28, 2026
22	OGIER	Indirect evidence	St Helier, JerseyHQ checked Sep 28, 2026	1,001-5,000	1,169 contacts →
	Indirect evidence “Ogier is an international professional services firm with the knowledge and expertise to handle the most demanding and complex transactions and provide expert, efficient and cost…” Source: RevenueBase Database · checked Sep 28, 2026
23	Gilbert Tobin	Indirect evidence	Barangaroo, AustraliaHQ checked Sep 28, 2026	1,001-5,000	1,162 contacts →
	Indirect evidence “Gilbert + Tobin was founded on values of excellence, trust, respect, integrity and good corporate citizenship.” Source: RevenueBase Database · checked Sep 28, 2026
24	AZB & Partners	Indirect evidence	Mumbai, IndiaHQ checked Sep 28, 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 28, 2026
25	Arthur COX LLP	Partial evidence	Dublin, IrelandHQ checked Sep 28, 2026	501-1,000	913 contacts →
	Partial evidence “Arthur Cox LLP is one of Ireland’s leading law firms.” Source: RevenueBase Database · checked Sep 28, 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: financial services 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 financial services compliance law firms.
Partial evidence: Its own public description names part of financial services 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 financial services 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 13,351 financial services compliance law firms worldwide

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Financial services compliance law firms worldwide at a glance

As of Sep 28, 2026

38.2%Verified-email coverage

14.5Average contacts per company

1-10Median size (employees)

2.6%Largest-city concentration · Sao Paulo

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

8,085

11-50

4,195

51-200

766

201-500

168

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 financial services 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 financial services compliance law firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “financial services 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 financial services 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 financial services 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, 73,963 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 28, 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.

Financial services compliance law firms by location

97 lists · largest first

Every Financial services 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 financial services 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 financial services compliance law firms are there worldwide?

RevenueBase identified 13,351 financial services 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?

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

Which country has the most financial services compliance law firms?

The United States leads with 1,871 companies, followed by Brazil (1,408) and India (1,352). Every financial services compliance law firms list by country and city is linked on this page.

Which city has the most financial services compliance law firms?

Sao Paulo leads with 341 headquartered companies, followed by New Delhi (252) and London (213).

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 73,963 verified decision-maker contacts tracked across these 13,351 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 28, 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.