Company lists · Data refreshed September 2026

Top 25 Patent and intellectual property law firms worldwide

Name: Patent and intellectual property law firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 10,391 companies tracked

RevenueBase identified 10,391 company matches for patent and intellectual property law firms worldwide as of September 2026 and tracks 152,060 professional contacts across them, including 62,703 with verified work emails. The United States is the largest market and Paris the largest hub.

This list covers company matches for patent and intellectual property law firms worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 29, 2026. Country and city lists for patent and intellectual property law firms follow the table.

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 RevenueBase SmartSearch · Exact Recorded Sep 29, 2026 How this list was built

10,391Companies

152,060Contacts tracked

62,703Verified emails

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The 25 largest patent and intellectual property law firms worldwide

Ranked by team size

Top 25 of 10,391 company matches for patent and intellectual property law firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Cooley LLP	Exact match	Palo Alto, CA, United StatesHQ recorded Sep 29, 2026	1,001-5,000	3,341 contacts →
	Exact match “Clients partner with Cooley on transformative deals, complex IP and regulatory matters, and high-stakes litigation.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2	Foley & Lardner LLP	Exact match	Milwaukee, WI, United StatesHQ recorded Sep 29, 2026	1,001-5,000	2,884 contacts →
	Exact match “Foley & Lardner LLP stands at the nexus of the Energy & Infrastructure, Health Care & Life Sciences, Innovative Technology, and Manufacturing Sectors.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3	Perkins Coie	Exact match	Seattle, WA, United StatesHQ recorded Sep 29, 2026	1,001-5,000	2,746 contacts →
	Exact match “Perkins Coie has combined with Ashurst to form Ashurst Perkins Coie.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4	Venable LLP	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	1,001-5,000	1,790 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5	Crowell & Moring	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	1,001-5,000	1,602 contacts →
	Exact match “Crowell & Moring is an international law firm with operations in the United States, Europe, MENA, and Asia.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6	Kilpatrick Townsend & Stockton LLP	Exact match	Atlanta, GA, United StatesHQ recorded Sep 29, 2026	1,001-5,000	1,558 contacts →
	Exact match “Kilpatrick is trusted counsel to the world’s most innovative companies.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7	MINTZ	Exact match	Boston, MA, United StatesHQ recorded Sep 29, 2026	1,001-5,000	1,326 contacts →
	Exact match “Mintz is a full-service law firm serving clients in the life sciences, energy, private equity, and technology industries.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8	CPA Global	Exact match	St Helier, JerseyHQ recorded Sep 29, 2026	1,001-5,000	1,171 contacts →
	Exact match “CPA Global makes it possible for IP to move at the speed of ideas.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9	Fish & Richardson P.C	Exact match	Boston, MA, United StatesHQ recorded Sep 29, 2026	1,001-5,000	1,167 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10	Fenwick & West	Exact match	Silicon Valley, CA, United StatesHQ recorded Sep 29, 2026	501-1,000	1,126 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11	Finnegan, Henderson, Farabow, Garrett & Dunner, LLP	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	501-1,000	936 contacts →
	Exact match “When your most valuable assets are ideas, innovation, and brand-you need the best.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12	Adams & Adams	Exact match	Pretoria, South AfricaHQ recorded Sep 29, 2026	501-1,000	846 contacts →
	Exact match “Realise African Enterprise.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13	Dannemann Siemsen	Exact match	Rio De Janeiro, BrazilHQ recorded Sep 29, 2026	501-1,000	775 contacts →
	Exact match “Dannemann Siemsen is a Brazilian firm dedicated to Intellectual Property since 1900.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14	Maxval Group, INC	Exact match	Los Altos, CA, United StatesHQ recorded Sep 29, 2026	501-1,000	754 contacts →
	Exact match “Since 2004, MaxVal has helped the world's most innovative organizations capitalize on their intellectual property by being different from the legacy IP solution providers.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15	Dennemeyer	Exact match	Howald, LuxembourgHQ recorded Sep 29, 2026	1,001-5,000	707 contacts →
	Exact match “The Dennemeyer Group offers high-quality services for the protection and management of Intellectual Property rights and is committed to being the first-choice partner for…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16	Butler Snow LLP	Exact match	Ridgeland, MS, United StatesHQ recorded Sep 29, 2026	501-1,000	685 contacts →
	Exact match “With over 400 attorneys in offices in Albuquerque, Ambler (PA), Atlanta, Austin, Baton Rouge, Bethlehem (PA), Birmingham, Boston, Charleston, Dallas, Denver, Gulfport, Huntsville…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17	Honigman LLP	Exact match	Detroit, MI, United StatesHQ recorded Sep 29, 2026	501-1,000	669 contacts →
	Exact match “Honigman LLP is an Am Law 200 full-service, general business law firm with more than 400 attorneys counseling clients on complex issues across the country in Chicago, Michigan…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18	Knobbe Martens	Exact match	Irvine, CA, United StatesHQ recorded Sep 29, 2026	501-1,000	606 contacts →
	Exact match “Knobbe Martens protects the ideas that drive innovation and propel our world forward.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19	Goldfarb Gross Seligman	Exact match	Tel Aviv, IsraelHQ recorded Sep 29, 2026	501-1,000	585 contacts →
	Exact match “Goldfarb Gross Seligman & Co,one of the largest law firms in Israel, is among the elite group of firms that deliver top-tier legal services at international standards.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20	ROUSE	Exact match	London, United KingdomHQ recorded Sep 29, 2026	501-1,000	584 contacts →
	Exact match “Rouse was established in the UK in 1990 and is recognised as a global intellectual property (IP) leader operating as a collaborative network with more than people working out of…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21	Marks & Clerk	Exact match	London, United KingdomHQ recorded Sep 29, 2026	501-1,000	573 contacts →
	Exact match “We’re true specialists – focusing on IP and IP alone.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22	Eckert Seamans	Exact match	Pittsburgh, PA, United StatesHQ recorded Sep 29, 2026	501-1,000	570 contacts →
	Exact match “Eckert Seamans Cherin & Mellott LLC has lawyers in offices throughout the United States, including Harrisburg, Philadelphia, and Pittsburgh, Pennsylvania; Boston, Massachusetts…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23	HGF Limited	Exact match	Leeds, United KingdomHQ recorded Sep 29, 2026	201-500	538 contacts →
	Exact match “HGF is one of Europe’s largest firms of Intellectual Property specialists.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24	Smart & Biggar	Exact match	Ottawa, ON, CanadaHQ recorded Sep 29, 2026	501-1,000	521 contacts →
	Exact match “Smart & Biggar is a Canadian intellectual property law firm.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25	Sagaciouselevate	Exact match	Seattle, WA, United StatesHQ recorded Sep 29, 2026	501-1,000	488 contacts →
	Exact match “Sagacious IP is the World’s LARGEST IP research firm that reliably supports the worldwide IP community including Large Corporations, Small & Mid-size Corporations, IP law firms…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “patent and intellectual property law firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 10,391 patent and intellectual property law firms worldwide

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Patent and intellectual property law firms worldwide at a glance

As of Sep 29, 2026

41.2%Verified-email coverage

14.6Average contacts per company

1-10Median size (employees)

1.9%Largest-city concentration · Paris

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

6,580

11-50

2,840

51-200

673

201-500

198

501-1,000

1,001-5,000

10001+

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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.
Coverage: Every country. Country and city lists for patent and intellectual property law firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “patent and intellectual property law firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 62,703 professional contacts with verified work emails across the full matched dataset. 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 29, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Patent and intellectual property law firms by location

85 lists · largest first

Every Patent and intellectual property 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 SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “patent and intellectual property law firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many patent and intellectual property law firms are there worldwide?

RevenueBase identified 10,391 company matches for patent and intellectual property law firms worldwide as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Cooley LLP tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most patent and intellectual property law firms?

The United States leads with 2,801 companies, followed by India (929) and Germany (532). Every patent and intellectual property law firms list by country and city is linked on this page.

Which city has the most patent and intellectual property law firms?

Paris leads with 198 company records, followed by New York (196) and New Delhi (193).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 62,703 professional contacts with verified work emails tracked across these 10,391 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 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.