Company lists · Data refreshed September 2026

Top 25 Derivatives law firms based in the United States

RevenueBase identified 927 derivatives law firms headquartered in the United States as of September 2026 and tracks 31,779 professional contacts across them, including 18,537 with verified work emails and 16,094 with mobile numbers. New York is the largest hub.

This list covers derivatives 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 1, 2026.

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 RevenueBase Smart Search rating on every row Refreshed Sep 1, 2026 86% judged on-target in blind review
927Companies
31,779Contacts tracked
18,537Verified emails
16,094Mobile numbers
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The 25 largest derivatives law firms based in the United States

Ranked by team size
Top 25 of 927 derivatives law firms based in the United States, ranked by team size, largest first. Data refreshed Sep 1, 2026. RevenueBase Smart Search rates how each company's information relates to derivatives 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 evidenceHouston, TX, United States1,001-5,0004,209 contacts →

Partial evidence

“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: RevenueBase Database · checked Sep 1, 2026
2Partial evidenceNew York, NY, United States1,001-5,0002,652 contacts →

Partial evidence

“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: RevenueBase Database · checked Sep 1, 2026
3Indirect evidenceCharlotte, NC, United States1,001-5,0002,176 contacts →

Indirect evidence

“High stakes.”

Source: RevenueBase Database · checked Sep 1, 2026
4Partial evidencePhiladelphia, PA, United States1,001-5,0002,056 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 1, 2026
5Partial evidenceIrvine, CA, United States501-1,0001,193 contacts →

Partial evidence

“Hinshaw & Culbertson LLP is a U.S-based law firm with offices nationwide.”

Source: RevenueBase Database · checked Sep 1, 2026
6Indirect evidenceDenver, CO, United States501-1,0001,170 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 1, 2026
7Partial evidenceLas Vegas, NV, United States501-1,000896 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 1, 2026
8Indirect evidenceCharlotte, NC, United States501-1,000578 contacts →

Indirect evidence

“Businesses and local governments turn to Parker Poe to structure transactions, navigate regulations, and resolve disputes.”

Source: RevenueBase Database · checked Sep 1, 2026
9Indirect evidenceWashington, DC, United States501-1,000576 contacts →

Indirect evidence

“Founded in 1983, Wiley is a dominant presence in the nation’s capital.”

Source: RevenueBase Database · checked Sep 1, 2026
10Partial evidenceCharlotte, NC, United States201-500562 contacts →

Partial evidence

“Chapman is a law firm focused on finance.”

Source: RevenueBase Database · checked Sep 1, 2026
11Partial evidenceNew York, NY, United States201-500436 contacts →

Partial evidence

“Kobre & Kim is a conflict-free global law firm focused exclusively on disputes and investigations.”

Source: RevenueBase Database · checked Sep 1, 2026
12Partial evidenceClarence, NY, United States201-500411 contacts →

Partial evidence

“Lippes Mathias is a full-service law firm with 230 attorneys serving clients regionally, nationally, and internationally.”

Source: RevenueBase Database · checked Sep 1, 2026
13Partial evidenceNew York, NY, United States201-500361 contacts →

Partial evidence

“Founded in 1919, Patterson Belknap is a law firm of approximately 200 lawyers committed to providing high quality legal advice and service to clients and to maintaining a…”

Source: RevenueBase Database · checked Sep 1, 2026
14Indirect evidenceWheeling, WV, United States201-500335 contacts →

Indirect evidence

“For over 50 years, Post & Schell’s attorneys have combined the operational knowledge and insight into the industries they represent with creative legal solutions – and helped…”

Source: RevenueBase Database · checked Sep 1, 2026
15Indirect evidenceNew York, NY, United States201-500334 contacts →

Indirect evidence

“Seward & Kissel, founded in 1890, is a leading U.S.”

Source: RevenueBase Database · checked Sep 1, 2026
16Indirect evidenceAustin, TX, United States501-1,000327 contacts →

Indirect evidence

“Thompson & Knight is now known as Holland & Knight.”

Source: RevenueBase Database · checked Sep 1, 2026
17Indirect evidenceDetroit, MI, United States201-500324 contacts →

Indirect evidence

“Miller Johnson was founded in 1959 and is committed to excellence in service to our business, institutional and individual clients.”

Source: RevenueBase Database · checked Sep 1, 2026
18Partial evidenceTroy, MI, United States201-500299 contacts →

Partial evidence

“Bodman PLC is one of the Midwest's leading business law firms with more than 170 lawyers.”

Source: RevenueBase Database · checked Sep 1, 2026
19Indirect evidenceNew York, NY, United States501-1,000297 contacts →

Indirect evidence

“With more than 500 legal and business professionals across the US, Stroock is a national firm with international reach.”

Source: RevenueBase Database · checked Sep 1, 2026
20Partial evidenceRoanoke, VA, United States201-500278 contacts →

Partial evidence

“Woods Rogers is a Virginia-based law firm delivering uncommon service and solutions.”

Source: RevenueBase Database · checked Sep 1, 2026
21Partial evidenceCincinnati, OH, United States201-500259 contacts →

Partial evidence

“At the law firm of Keating Muething & Klekamp (KMK Law®), we strive to stay ahead of the curve in understanding the complexities of the new economy and anticipating how our…”

Source: RevenueBase Database · checked Sep 1, 2026
22Partial evidenceManchester, NH, United States201-500253 contacts →

Partial evidence

“We are a New England-based law firm that advises clients across the U.S.”

Source: RevenueBase Database · checked Sep 1, 2026
23Partial evidenceNorthbrook, IL, United States51-200252 contacts →

Partial evidence

“Formed in Levenfeld Pearlstein provides the sophisticated skills and resources of a big law firm with the personal attention of a small law firm.”

Source: RevenueBase Database · checked Sep 1, 2026
24Partial evidenceOmaha, NE, United States51-200238 contacts →

Partial evidence

“Koley Jessen is a strategically growing law firm serving the needs of businesses and their owners, executives, and professionals in Nebraska and around the country.”

Source: RevenueBase Database · checked Sep 1, 2026
25Indirect evidenceAlbany, NY, United States51-200209 contacts →

Indirect evidence

“Today’s legal issues are vastly more complex than ever before.”

Source: RevenueBase Database · checked Sep 1, 2026

Showing 25 of 927 derivatives law firms based in the United States

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Derivatives law firms based in the United States at a glance

As of Sep 1, 2026
58.3%Verified-email coverage
50.6%Mobile-number coverage
34.3Average contacts per company
1-10Median size (employees)
11.9%Largest-city concentration · New York
Sep 1, 2026Page data refreshed

Companies by employee count

1-10
546
11-50
285
51-200
65
201-500
18
501-1,000
7
1,001-5,000
4

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 derivatives 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.
What qualifies
Companies headquartered in the United States whose own description of what they do matches “derivatives 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 derivatives 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 derivatives 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 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, 18,537 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 1, 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.

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 derivatives 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 derivatives law firms are there based in the United States?

RevenueBase identified 927 derivatives 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?

Mayer Brown, headquartered in Houston, tops this list with the largest team on record.

Which city has the most derivatives law firms?

New York leads with 110 headquartered companies, followed by Chicago (36) and Houston (29).

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 18,537 verified decision-maker contacts tracked across these 927 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 1, 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.