Company lists · Data refreshed September 2026

Top 25 Antitrust law firms worldwide

RevenueBase identified 9,078 antitrust law firms worldwide as of September 2026 and tracks 126,177 professional contacts across them, including 56,950 with verified work emails and 0 with mobile numbers. Brazil is the largest market and Sao Paulo the largest hub.

This list covers antitrust 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 14, 2026. Country and city lists for antitrust 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 14, 2026 86% judged on-target in blind review
9,078Companies
126,177Contacts tracked
56,950Verified emails
0Mobile numbers
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The 25 largest antitrust law firms worldwide

Ranked by team size
Top 25 of 9,078 antitrust law firms worldwide, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to antitrust 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
1Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 14, 20261,001-5,0003,735 contacts →

Partial evidence

“Gibson Dunn is a leading global law firm, advising clients on significant transactions and disputes.”

Source: RevenueBase Database · checked Sep 14, 2026
2Indirect evidenceWashington, DC, United StatesHQ checked Sep 14, 20261,001-5,0002,333 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
3Indirect evidenceChicago, IL, United StatesHQ checked Sep 14, 20261,001-5,0002,167 contacts →

Indirect evidence

“High stakes.”

Source: RevenueBase Database · checked Sep 14, 2026
4Partial evidencePhiladelphia, PA, United StatesHQ checked Sep 14, 20261,001-5,0002,041 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
5Partial evidenceLondon, United KingdomHQ checked Sep 14, 20261,001-5,0001,951 contacts →

Partial evidence

“Slaughter and May is regarded as one of the most prestigious law firms in the world.”

Source: RevenueBase Database · checked Sep 14, 2026
6Indirect evidencePhiladelphia, PA, United StatesHQ checked Sep 14, 20261,001-5,0001,848 contacts →

Indirect evidence

“Faegre Drinker is a firm designed for clients.”

Source: RevenueBase Database · checked Sep 14, 2026
7Partial evidenceWashington, DC, United StatesHQ checked Sep 14, 20261,001-5,0001,790 contacts →

Partial 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 14, 2026
8Partial evidenceHouston, TX, United StatesHQ checked Sep 14, 20261,001-5,0001,693 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 14, 2026
9Partial evidencePhiladelphia, PA, United StatesHQ checked Sep 14, 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 14, 2026
10Partial evidenceWashington, DC, United StatesHQ checked Sep 14, 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 14, 2026
11Partial evidenceSão Paulo, BrazilHQ checked Sep 14, 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 14, 2026
12Indirect evidenceDetroit, MI, United StatesHQ checked Sep 14, 20261,001-5,0001,343 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
13Partial evidenceLiverpool, United KingdomHQ checked Sep 14, 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 14, 2026
14Indirect evidenceBarangaroo, AustraliaHQ checked Sep 14, 20261,001-5,0001,162 contacts →

Indirect evidence

“Gilbert + Tobin was founded on values of excellence, trust, respect, integrity and good corporate citizenship.”

Source: RevenueBase Database · checked Sep 14, 2026
15Partial evidenceLondon, United KingdomHQ checked Sep 14, 20261,001-5,0001,155 contacts →

Partial evidence

“Taylor Rose is a top 60 independent law firm with 1,700 experts operating nationwide and is recommended by the Legal 500 UK.”

Source: RevenueBase Database · checked Sep 14, 2026
16Partial evidenceParis, FranceHQ checked Sep 14, 2026501-1,0001,098 contacts →

Partial evidence

“Gide is a leading law firm, both in France and internationally, in all areas of business law for Litigation, Transactions, and Regulation.”

Source: RevenueBase Database · checked Sep 14, 2026
17Partial evidenceDenver, CO, United StatesHQ checked Sep 14, 2026501-1,000902 contacts →

Partial 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 14, 2026
18Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 14, 2026501-1,000799 contacts →

Indirect evidence

“Our clients, people and drive for quality are the energisers of our firm.”

Source: RevenueBase Database · checked Sep 14, 2026
19Indirect evidenceU.S., United StatesHQ checked Sep 14, 2026501-1,000758 contacts →

Indirect evidence

“At Adams & Reese, we take things personally.”

Source: RevenueBase Database · checked Sep 14, 2026
20Partial evidenceTel Aviv, IsraelHQ checked Sep 14, 2026501-1,000749 contacts →

Partial evidence

“Herzog Fox & Neeman is Israel’s largest law firm and has earned a reputation as market leader, evidenced by consistent top-tier rankings in both international and Israeli legal…”

Source: RevenueBase Database · checked Sep 14, 2026
21Partial evidenceMontréal, QC, CanadaHQ checked Sep 14, 2026501-1,000725 contacts →

Partial evidence

“With over 500 employees and 300 professionals, BCF Business Law is the go-to firm for business leaders, growing companies, and well-established global enterprises who have chosen…”

Source: RevenueBase Database · checked Sep 14, 2026
22Partial evidenceSão Paulo, BrazilHQ checked Sep 14, 2026501-1,000720 contacts →

Partial evidence

“We are an independent law firm that offers specialized advice and superior technical quality in a variety of legal areas.”

Source: RevenueBase Database · checked Sep 14, 2026
23Partial evidenceNew York, NY, United StatesHQ checked Sep 14, 2026501-1,000690 contacts →

Partial 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 14, 2026
24Indirect evidenceCiudad De Buenos Aires, ArgentinaHQ checked Sep 14, 2026501-1,000688 contacts →

Indirect evidence

“Fundada en 1923, Marval O’Farrell Mairal es la firma legal más grande de la Argentina, líder en el país y también en Latinoamérica.”

Source: RevenueBase Database · checked Sep 14, 2026
25Partial evidenceStockholm, SwedenHQ checked Sep 14, 2026501-1,000681 contacts →

Partial evidence

“We are a leading Nordic full-service law firm, with 580 expert employees and offices in Stockholm, Gothenburg, Malmo and Brussels.”

Source: RevenueBase Database · checked Sep 14, 2026

Showing 25 of 9,078 antitrust law firms worldwide

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Antitrust law firms worldwide at a glance

As of Sep 14, 2026
45.1%Verified-email coverage
13.9Average contacts per company
1-10Median size (employees)
6.1%Largest-city concentration · Sao Paulo
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
5,976
11-50
2,533
51-200
384
201-500
65
501-1,000
25
1,001-5,000
25
5,001-10,000
1
10001+
3

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 antitrust 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
42 countries, largest first: Brazil, France, the United States, Italy, Spain, Germany, Türkiye, Poland, India, Mexico and 32 more. Country and city lists for antitrust law firms are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “antitrust 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 antitrust 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 antitrust 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, 56,950 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 14, 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.

Antitrust law firms by location

81 lists · largest first

Every Antitrust 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 antitrust 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 antitrust law firms are there worldwide?

RevenueBase identified 9,078 antitrust 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?

Gibson Dunn, headquartered in Los Angeles, tops this list with the largest team on record.

Which country has the most antitrust law firms?

Brazil leads with 2,070 companies, followed by France (818) and the United States (767). Every antitrust law firms list by country and city is linked on this page.

Which city has the most antitrust law firms?

Sao Paulo leads with 551 headquartered companies, followed by Paris (452) and Madrid (196).

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 56,950 verified decision-maker contacts tracked across these 9,078 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 14, 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.