Company lists · Data refreshed September 2026

Top 25 Biotechnology law firms based in the United States

Name: Biotechnology law firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 1,274 companies tracked

RevenueBase identified 1,274 biotechnology law firms headquartered in the United States as of September 2026 and tracks 25,815 professional contacts across them, including 15,175 with verified work emails. New York is the largest hub.

This list covers biotechnology 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 27, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 27, 2026 86% judged on-target in blind review

1,274Companies

25,815Contacts tracked

15,175Verified emails

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The 25 largest biotechnology law firms based in the United States

Ranked by team size

Top 25 of 1,274 biotechnology law firms based in the United States, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to biotechnology 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	Wilson Sonsini Goodrich & Rosati	Indirect evidence	Palo Alto, CA, United StatesHQ checked Sep 27, 2026	1,001-5,000	2,092 contacts →
	Indirect evidence “Wilson Sonsini Goodrich & Rosati is the premier legal advisor to technology, life sciences, and other growth enterprises worldwide.” Source: RevenueBase Database · checked Sep 27, 2026
2	Venable LLP	Partial evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,790 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 27, 2026
3	Kilpatrick Townsend & Stockton LLP	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,558 contacts →
	Indirect evidence “Kilpatrick is trusted counsel to the world’s most innovative companies.” Source: RevenueBase Database · checked Sep 27, 2026
4	MINTZ	Partial evidence	Boston, MA, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,326 contacts →
	Partial evidence “Mintz is a full-service law firm serving clients in the life sciences, energy, private equity, and technology industries.” Source: RevenueBase Database · checked Sep 27, 2026
5	Fish & Richardson P.C	Partial evidence	Boston, MA, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,167 contacts →
	Partial evidence “As the leading intellectual property law firm, we help innovators change the world through our unmatched litigation, prosecution, and post-grant experience across venues and…” Source: RevenueBase Database · checked Sep 27, 2026
6	Fenwick & West	Partial evidence	Silicon Valley, CA, United StatesHQ checked Sep 27, 2026	501-1,000	1,126 contacts →
	Partial evidence “Fenwick is a leading law firm, purpose-built to guide visionary tech and life sciences companies and their investors through every stage of growth, from startups securing their…” Source: RevenueBase Database · checked Sep 27, 2026
7	Finnegan, Henderson, Farabow, Garrett & Dunner, LLP	Indirect evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	501-1,000	936 contacts →
	Indirect evidence “When your most valuable assets are ideas, innovation, and brand-you need the best.” Source: RevenueBase Database · checked Sep 27, 2026
8	Epstein Becker Green	Partial evidence	New York, NY, United StatesHQ checked Sep 27, 2026	501-1,000	701 contacts →
	Partial evidence “Clients turn to Epstein Becker Green for strategic counsel in employment and labor law, health care and life sciences, and complex litigation.” Source: RevenueBase Database · checked Sep 27, 2026
9	Knobbe Martens	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 27, 2026	501-1,000	606 contacts →
	Indirect evidence “Knobbe Martens protects the ideas that drive innovation and propel our world forward.” Source: RevenueBase Database · checked Sep 27, 2026
10	Sterne, Kessler, Goldstein & FOX	Partial evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	201-500	468 contacts →
	Partial evidence “Sterne, Kessler, Goldstein & Fox is a full-service intellectual property law firm that provides innovative solutions tailored to your business and industry.” Source: RevenueBase Database · checked Sep 27, 2026
11	Wolf Greenfield	Indirect evidence	Boston, MA, United StatesHQ checked Sep 27, 2026	201-500	428 contacts →
	Indirect evidence “Wolf, Greenfield & Sacks, P.C.” Source: RevenueBase Database · checked Sep 27, 2026
12	Irell & Manella LLP	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	201-500	258 contacts →
	Partial evidence “Irell & Manella LLP is a law firm focused on complex commercial and IP litigation.” Source: RevenueBase Database · checked Sep 27, 2026
13	Effectual Services	Indirect evidence	New York, NY, United StatesHQ checked Sep 27, 2026	201-500	242 contacts →
	Indirect evidence “Effectual Services is a well established and fast growing patent and legal support services company having experience and expertise in providing patent and legal services.” Source: RevenueBase Database · checked Sep 27, 2026
14	Keller And Heckman LLP	Partial evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	51-200	230 contacts →
	Partial evidence “Keller and Heckman, founded in 1962, has a broad practice in the areas of regulatory law, public policy, and litigation, serving both domestic and international clients.” Source: RevenueBase Database · checked Sep 27, 2026
15	Cantor Colburn LLP	Partial evidence	Hartford, CT, United StatesHQ checked Sep 27, 2026	201-500	222 contacts →
	Partial evidence “Cantor Colburn LLP is one of the largest intellectual property specialty law firms in the country, providing clients worldwide with the complete range of IP legal services…” Source: RevenueBase Database · checked Sep 27, 2026
16	Marshall, Gerstein & Borun LLP	Partial evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	51-200	213 contacts →
	Partial evidence “Marshall, Gerstein & Borun LLP has one focus - intellectual property law.” Source: RevenueBase Database · checked Sep 27, 2026
17	Axinn, Veltrop & Harkrider LLP	Indirect evidence	New York, NY, United StatesHQ checked Sep 27, 2026	51-200	196 contacts →
	Indirect evidence “A firm to turn to when all seems hopeless"-Chambers USA Axinn combines the skills, experience and dedication of the world's largest firms with the focus, responsiveness…” Source: RevenueBase Database · checked Sep 27, 2026
18	Fross Zelnick Lehrman & Zissu	Partial evidence	New York, NY, United StatesHQ checked Sep 27, 2026	51-200	182 contacts →
	Partial evidence “Fross Zelnick is consistently recognized by clients and peers as one of the top IP law firms in the world.” Source: RevenueBase Database · checked Sep 27, 2026
19	Dority & Manning, P.A	Partial evidence	Greenville, SC, United StatesHQ checked Sep 27, 2026	51-200	181 contacts →
	Partial evidence “Formed in 1984, Dority & Manning is a full-service intellectual property law firm.” Source: RevenueBase Database · checked Sep 27, 2026
20	Munck Wilson Mandala LLP	Partial evidence	Dallas, TX, United StatesHQ checked Sep 27, 2026	51-200	180 contacts →
	Partial evidence “Munck Wilson Mandala is a technology-focused law firm with offices in Dallas, Austin, Houston, Waco, Texas; Los Angeles, California; and South Florida.” Source: RevenueBase Database · checked Sep 27, 2026
21	Mcandrews, Held & Malloy, LTD	Partial evidence	Chicago, United StatesHQ checked Sep 27, 2026	51-200	162 contacts →
	Partial evidence “McAndrews, Held & Malloy is a premier, full-service intellectual property and technology law firm.” Source: RevenueBase Database · checked Sep 27, 2026
22	Mcginnis Lochridge	Indirect evidence	Austin, TX, United StatesHQ checked Sep 27, 2026	51-200	160 contacts →
	Indirect evidence “For almost 100 years, McGinnis Lochridge has served to protect the interests of our clients in continuously changing landscapes including cutting-edge technology, oil and gas…” Source: RevenueBase Database · checked Sep 27, 2026
23	Leydig, Voit & Mayer, LTD	Partial evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	51-200	157 contacts →
	Partial evidence “Leydig, Voit & Mayer remains at the forefront of intellectual property law, providing advice and counsel in intellectual property litigation, licensing, and prosecution services…” Source: RevenueBase Database · checked Sep 27, 2026
24	OBLON	Indirect evidence	Alexandria, VA, United StatesHQ checked Sep 27, 2026	201-500	156 contacts →
	Indirect evidence “Companies across the world depend on Oblon to help them establish, leverage and protect their intellectual property assets in the United States and abroad.” Source: RevenueBase Database · checked Sep 27, 2026
25	Workman Nydegger	Partial evidence	Salt Lake City, UT, United StatesHQ checked Sep 27, 2026	51-200	153 contacts →
	Partial evidence “Founded over 40 years ago, Workman Nydegger specializes in intellectual property (IP) law and complex litigation.” Source: RevenueBase Database · checked Sep 27, 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: biotechnology 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 biotechnology law firms.
Partial evidence: Its own public description names part of biotechnology law firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name biotechnology 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 1,274 biotechnology law firms based in the United States

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Biotechnology law firms based in the United States at a glance

As of Sep 27, 2026

58.8%Verified-email coverage

20.3Average contacts per company

1-10Median size (employees)

4.6%Largest-city concentration · New York

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

849

11-50

321

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 1,274 companies.

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 biotechnology 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 “biotechnology 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 biotechnology 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 biotechnology 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, 15,175 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 27, 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.

Biotechnology law firms by metro

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

RevenueBase identified 1,274 biotechnology 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?

Wilson Sonsini Goodrich & Rosati, headquartered in Palo Alto, tops this list with the largest team on record.

Which city has the most biotechnology law firms?

New York leads with 59 headquartered companies, followed by Washington (55) and Chicago (44).

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 15,175 verified decision-maker contacts tracked across these 1,274 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 27, 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.