Company lists · Data refreshed September 2026

Top 25 Government investigations law firms worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 6,905 companies tracked

RevenueBase identified 6,905 government investigations law firms worldwide as of September 2026 and tracks 159,690 professional contacts across them, including 81,035 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers government investigations 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 government investigations 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

6,905Companies

159,690Contacts tracked

81,035Verified emails

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The 25 largest government investigations law firms worldwide

Ranked by team size

Top 25 of 6,905 government investigations 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 government investigations 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	K&l Gates	Indirect evidence	Pittsburgh, PA, United StatesHQ checked Sep 28, 2026	1,001-5,000	4,861 contacts →
	Indirect evidence “At K&L Gates, we foster an inclusive and collaborative environment across our fully integrated global platform that enables us to diligently combine the knowledge and expertise of…” Source: RevenueBase Database · checked Sep 28, 2026
2	Skadden, Arps, Slate, Meagher & Flom LLP And Affiliates	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	1,001-5,000	4,540 contacts →
	Indirect evidence “Skadden, Arps, Slate, Meagher & Flom LLP and Affiliates delivers the highest quality advice and novel solutions to legal challenges, enabling clients to achieve their business…” Source: RevenueBase Database · checked Sep 28, 2026
3	Gibson Dunn	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	3,735 contacts →
	Partial evidence “Gibson Dunn is a leading global law firm, advising clients on significant transactions and disputes.” Source: RevenueBase Database · checked Sep 28, 2026
4	Squire Patton Boggs	Strong evidence	Cleveland, OH, United StatesHQ checked Sep 28, 2026	1,001-5,000	3,343 contacts →
	Strong evidence “Squire Patton Boggs is a full service global law firm providing insight at the point where law, business and government meet, giving you a voice, supporting your ambitions and…” Source: RevenueBase Database · checked Sep 28, 2026
5	Cooley LLP	Indirect evidence	Palo Alto, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	3,341 contacts →
	Indirect evidence “Clients partner with Cooley on transformative deals, complex IP and regulatory matters, and high-stakes litigation.” Source: RevenueBase Database · checked Sep 28, 2026
6	Minterellison	Partial evidence	AustraliaHQ checked Sep 28, 2026	1,001-5,000	2,667 contacts →
	Partial evidence “MinterEllison is one of Australia’s largest independent law and consulting firms.” Source: RevenueBase Database · checked Sep 28, 2026
7	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
8	Akin Gump Strauss Hauer & Feld LLP	Partial evidence	Washington, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,454 contacts →
	Partial evidence “Akin is a global law firm with more than 1,100 lawyers and advisors who pride themselves on dedication to their clients and their communities.” Source: RevenueBase Database · checked Sep 28, 2026
9	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
10	Seyfarth Shaw LLP	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,167 contacts →
	Indirect evidence “High stakes.” Source: RevenueBase Database · checked Sep 28, 2026
11	Unitedlex	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,098 contacts →
	Partial evidence “UnitedLex is the preeminent business partner for legal delivering solutions that achieve value and drive growth for corporate legal departments and law firms in the areas of…” Source: RevenueBase Database · checked Sep 28, 2026
12	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
13	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
14	Taft Stettinius & Hollister LLP	Indirect evidence	Cincinnati, OH, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,980 contacts →
	Indirect evidence “At Taft, we work as one team, driven and committed to helping you succeed.” Source: RevenueBase Database · checked Sep 28, 2026
15	Pillsbury Winthrop Shaw Pittman LLP	Strong evidence	New York, NY, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,949 contacts →
	Strong 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 28, 2026
16	Faegre Drinker	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,848 contacts →
	Indirect evidence “Faegre Drinker is a firm designed for clients.” Source: RevenueBase Database · checked Sep 28, 2026
17	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
18	Clayton UTZ	Strong evidence	Sydney, AustraliaHQ checked Sep 28, 2026	1,001-5,000	1,787 contacts →
	Strong 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 28, 2026
19	Vinson & Elkins	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 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 28, 2026
20	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
21	Crowell & Moring	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,602 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 28, 2026
22	Katten Muchin Rosenman LLP	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,495 contacts →
	Partial evidence “Katten is a full-service law firm with nearly 650 attorneys in locations across the United States and in London and Shanghai.” Source: RevenueBase Database · checked Sep 28, 2026
23	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
24	Quarles & Brady LLP	Indirect evidence	Milwaukee, WI, United StatesHQ checked Sep 28, 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 28, 2026
25	Buchanan Ingersoll & Rooney PC	Strong evidence	Pittsburgh, PA, United StatesHQ checked Sep 28, 2026	501-1,000	1,197 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 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: government investigations 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 government investigations law firms.
Partial evidence: Its own public description names part of government investigations law firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name government investigations 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 6,905 government investigations law firms worldwide

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Government investigations law firms worldwide at a glance

As of Sep 28, 2026

50.7%Verified-email coverage

23.1Average contacts per company

1-10Median size (employees)

4.2%Largest-city concentration · Sao Paulo

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

4,545

11-50

1,879

51-200

313

201-500

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 government investigations 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 government investigations law firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “government investigations 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 government investigations 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 government investigations 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, 81,035 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.

Government investigations law firms by location

49 lists · largest first

Every Government investigations 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 government investigations 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 government investigations law firms are there worldwide?

RevenueBase identified 6,905 government investigations 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?

K&l Gates, headquartered in Pittsburgh, tops this list with the largest team on record.

Which country has the most government investigations law firms?

The United States leads with 2,056 companies, followed by Brazil (937) and France (276). Every government investigations law firms list by country and city is linked on this page.

Which city has the most government investigations law firms?

Sao Paulo leads with 293 headquartered companies, followed by Paris (197) and New York (185).

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 81,035 verified decision-maker contacts tracked across these 6,905 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.