Company lists · Data refreshed September 2026

Top 25 Securities law firms based in the United States

RevenueBase identified 5,845 securities law firms headquartered in the United States as of September 2026 and tracks 230,794 professional contacts across them, including 134,152 with verified work emails and 122,838 with mobile numbers. New York is the largest hub.

This list covers securities law firms headquartered in the United States, 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, how directly it supports the match, and when it was last checked. Data refreshed September 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 Match evidence on every row Refreshed Sep 6, 2026 86% judged on-target in blind review
5,845Companies
230,794Contacts tracked
134,152Verified emails
122,838Mobile numbers
Explore all 5,845 companies → Free signup · no credit card · 500 free credits

The 25 largest securities law firms based in the United States

Ranked by team size
Top 25 of 5,845 securities law firms based in the United States, ranked by team size, largest first. Data refreshed Sep 6, 2026. Evidence rates how directly each company's own description names securities law firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
Kirkland & EllisPartial evidence
Chicago, IL, United StatesHQ checked Sep 6, 20265,001-10,0008,449

“As one of the world’s leading law firms, we serve a broad range of clients with market-leading practices in private equity, M&A and other complex corporate transactions…”

Source: company website · checked Sep 6, 2026
2
K&l GatesIndirect evidence
Pittsburgh, PA, United StatesHQ checked Sep 6, 20261,001-5,0004,861

“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: company website · checked Sep 6, 2026
3New York, NY, United StatesHQ checked Sep 6, 20261,001-5,0004,540

“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: company website · checked Sep 6, 2026
4
Mayer BrownPartial evidence
Chicago, IL, United StatesHQ checked Sep 6, 20261,001-5,0004,177

“Mayer Brown is a leading international law firm, positioned to represent the world’s major corporations, funds and financial institutions in their most important and complex…”

Source: company website · checked Sep 6, 2026
5
Gibson DunnPartial evidence
Los Angeles, CA, United StatesHQ checked Sep 6, 20261,001-5,0003,735

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

Source: company website · checked Sep 6, 2026
6
Cooley LLPIndirect evidence
Palo Alto, CA, United StatesHQ checked Sep 6, 20261,001-5,0003,341

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

Source: company website · checked Sep 6, 2026
7
Lewis BrisboisPartial evidence
Los Angeles, CA, United StatesHQ checked Sep 6, 20261,001-5,0003,079

“Established in 1979, Lewis Brisbois Bisgaard & Smith LLP is a national, full-service law firm with more than 1,600 attorneys and 54 offices in 30 states and the District of…”

Source: company website · checked Sep 6, 2026
8San Francisco, CA, United StatesHQ checked Sep 6, 20261,001-5,0002,846

“As the only full-service law firm with offices and attorneys in all 50 states, Gordon Rees Scully Mansukhani delivers maximum value to our clients by combining the resources of a…”

Source: company website · checked Sep 6, 2026
9
Perkins CoieIndirect evidence
Seattle, WA, United StatesHQ checked Sep 6, 20261,001-5,0002,746

“Perkins Coie has combined with Ashurst to form Ashurst Perkins Coie.”

Source: company website · checked Sep 6, 2026
10
Morrison FoersterIndirect evidence
San Francisco, CA, United StatesHQ checked Sep 6, 20261,001-5,0002,667

“Morrison Foerster transforms complexity into advantage.”

Source: company website · checked Sep 6, 2026
11New York, NY, United StatesHQ checked Sep 6, 20261,001-5,0002,577

“Paul, Weiss, Rifkind, Wharton & Garrison LLP is a global law firm of more than 1,500 lawyers focused on helping clients navigate their most complex legal and business challenges.”

Source: company website · checked Sep 6, 2026
12Washington, United StatesHQ checked Sep 6, 20261,001-5,0002,454

“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: company website · checked Sep 6, 2026
13
Arnold & PorterIndirect evidence
Washington, DC, United StatesHQ checked Sep 6, 20261,001-5,0002,333

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

Source: company website · checked Sep 6, 2026
14
Proskauer Rose LLPIndirect evidence
New York, NY, United StatesHQ checked Sep 6, 20261,001-5,0002,096

“We are 800+ lawyers serving clients from offices located in the leading financial and business centers in the Americas, Europe and Asia.”

Source: company website · checked Sep 6, 2026
15Palo Alto, CA, United StatesHQ checked Sep 6, 20261,001-5,0002,092

“Wilson Sonsini Goodrich & Rosati is the premier legal advisor to technology, life sciences, and other growth enterprises worldwide.”

Source: company website · checked Sep 6, 2026
16
Dechert LLPPartial evidence
Philadelphia, PA, United StatesHQ checked Sep 6, 20261,001-5,0002,041

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

Source: company website · checked Sep 6, 2026
17Columbia, SC, United StatesHQ checked Sep 6, 20261,001-5,0002,012

“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: company website · checked Sep 6, 2026
18New York, NY, United StatesHQ checked Sep 6, 20261,001-5,0001,949

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

Source: company website · checked Sep 6, 2026
19
Troutman Pepper Locke LLPIndirect evidence
United StatesHQ checked Sep 6, 20261,001-5,0001,895

“Troutman Pepper Locke LLP helps clients solve complex legal challenges and achieve their business goals in an ever-changing global economy.”

Source: company website · checked Sep 6, 2026
20
Faegre DrinkerIndirect evidence
Philadelphia, PA, United StatesHQ checked Sep 6, 20261,001-5,0001,848

“Faegre Drinker is a firm designed for clients.”

Source: company website · checked Sep 6, 2026
21
Venable LLPPartial evidence
Washington, DC, United StatesHQ checked Sep 6, 20261,001-5,0001,790

“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: company website · checked Sep 6, 2026
22
Vinson & ElkinsPartial evidence
Houston, TX, United StatesHQ checked Sep 6, 20261,001-5,0001,693

“Vinson & Elkins is a law firm of global distinction, working with leading companies on wide-ranging matters in key industries across the economy.”

Source: company website · checked Sep 6, 2026
23
Ballard Spahr LLPPartial evidence
Philadelphia, PA, United StatesHQ checked Sep 6, 20261,001-5,0001,682

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

Source: company website · checked Sep 6, 2026
24
Milbank LLPPartial evidence
New York, NY, United StatesHQ checked Sep 6, 2026501-1,0001,640

“Milbank is a premier international law firm handling high-profile, complex cases and business transactions through 11 offices worldwide.”

Source: company website · checked Sep 6, 2026
25
Crowell & MoringPartial evidence
Washington, DC, United StatesHQ checked Sep 6, 20261,001-5,0001,602

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

Source: company website · checked Sep 6, 2026

Showing 25 of 5,845 securities law firms based in the United States

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Securities law firms based in the United States at a glance

As of Sep 6, 2026
1-10Median size (employees)
New YorkLargest hub · 461 HQs
122,838Contacts with mobile numbers
Sep 6, 2026Data refreshed

Companies by employee count

1-10
3,361
11-50
1,679
51-200
554
201-500
126
501-1,000
61
1,001-5,000
43
5,001-10,000
3
10001+
1

Verified emails by last verification

0–30
124,432
31–60
9,008
61–90
96
90–180
71
180+
545

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 securities law firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in the United States whose own description of what they do matches “securities law firms”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among securities law firms, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
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 an evidence 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, 134,152 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 6, 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.

Securities law firms by metro

Frequently asked

How many securities law firms are there based in the United States?

RevenueBase identified 5,845 securities law firms headquartered in the United States 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?

Kirkland & Ellis, headquartered in Chicago, tops this list with the largest team on record.

Which city has the most securities law firms?

New York leads with 461 headquartered companies, followed by Chicago (186) and Los Angeles (152).

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 134,152 verified decision-maker contacts tracked across these 5,845 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 6, 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 SmartSearch, 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.