Company lists · Data refreshed September 2026

Top 23 International patent law firms based in France

Name: International patent law firms based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 4, 2026 291 companies tracked

RevenueBase identified 291 international patent law firms headquartered in France as of September 2026 and tracks 3,754 professional contacts across them, including 1,672 with verified work emails and 70 with mobile numbers. Paris is the largest hub.

This list covers international patent law firms headquartered in France, 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 4, 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 4, 2026 86% judged on-target in blind review

291Companies

3,754Contacts tracked

1,672Verified emails

70Mobile numbers

Unlock all 291 companies Free signup · no credit card · 500 free credits

The 23 largest international patent law firms based in France

Ranked by team size

Top 23 of 291 international patent law firms based in France, ranked by team size, largest first. Data refreshed Sep 4, 2026. Evidence rates how directly each company's own description names international patent 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.
#	Company	Headquarters	Employees	Contacts
1	Plasseraud IPIndirect evidence	Paris, FranceHQ checked Sep 4, 2026	201-500	318
	“Founded in 1906, Plasseraud IP is one of the leading European firms in the IP sector, and among the largest in France.” Source: company website · checked Sep 4, 2026
2	LavoixIndirect evidence	Paris, FranceHQ checked Sep 4, 2026	201-500	188
	“Lavoixis a leading firm fully dedicated to IP.” Source: company website · checked Sep 4, 2026
3	RegimbeauPartial evidence	Paris, FranceHQ checked Sep 4, 2026	201-500	164
	“Intellectual Property Law Firm For 90 years REGIMBEAU’s ambition has been to make Industrial Property a key asset in the development of economic players and project leaders.” Source: company website · checked Sep 4, 2026
4	Ipsilon Intellectual PropertyIndirect evidence	Paris, FranceHQ checked Sep 4, 2026	201-500	114
	“The very notion of Intellectual Property has always been essential for companies.” Source: company website · checked Sep 4, 2026
5	CasalongaPartial evidence	Paris, FranceHQ checked Sep 4, 2026	51-200	106
	“CASALONGA is a leading European Intellectual Property (IP) law firm supporting and advising innovation-driven organisations across Europe and beyond.” Source: company website · checked Sep 4, 2026
6	YARDSStrong evidence	Paris, FranceHQ checked Sep 4, 2026	51-200	53
	“Yards is an independent and international business law firm” Source: company website · checked Sep 4, 2026
7	Miip - Made In IPIndirect evidence	Paris, FranceHQ checked Sep 4, 2026	11-50	53
	“MIIP-MADE IN IP est un cabinet spécialisé en propriété industrielle comptant une quarantaine de collaborateurs répartis dans nos différents bureaux en France.” Source: company website · checked Sep 4, 2026
8	Groupe VidonPartial evidence	Rennes, FranceHQ checked Sep 4, 2026	51-200	51
	“Vidon Group is a leading Intellectual Property law firm providing services throughout the world via its own offices in Europe (France and Germany) and Asia (Shanghai, Hong-Kong…” Source: company website · checked Sep 4, 2026
9	ICOSAPartial evidence	Paris, FranceHQ checked Sep 4, 2026	51-200	51
	“ICOSA is an IP Law firm dedicated to Life Sciences, Chemistry and Medical Device.” Source: company website · checked Sep 4, 2026
10	Ernest GutmannIndirect evidence	Paris, FranceHQ checked Sep 4, 2026	51-200	50
	“EGYP is a firm of intellectual property attorneys formed in 1985 by Ernest Gutmann and Yves Plasseraud, offering its clients a high added value service in all aspects of…” Source: company website · checked Sep 4, 2026
11	BMH AvocatsPartial evidence	Paris, FranceHQ checked Sep 4, 2026	11-50	40
	“Founded in 1988 by Detlev von Breitenstein and Martin Hauser, BMH AVOCATS is an independent law firm active in the field of business law.” Source: company website · checked Sep 4, 2026
12	Hautier IPIndirect evidence	Nice, FranceHQ checked Sep 4, 2026	11-50	28
	“Hautier IP is one of the oldest and most respected Intellectual Property firms in France and Monaco, dating back to 1892.” Source: company website · checked Sep 4, 2026
13	Becker & AssociesPartial evidence	FranceHQ checked Sep 4, 2026	11-50	27
	“Becker & Associés is an Intellectual Property Law firm founded in We bring to our clients our expertise, creativity and commitment in acquiring and defending their Industrial…” Source: company website · checked Sep 4, 2026
14	Ressource AvocatsIndirect evidence	Lyon, FranceHQ checked Sep 4, 2026	11-50	26
	“Ressource Avocats est un groupement d’avocats d’affaires français établi en région Auvergne-Rhône-Alpes et à Paris.” Source: company website · checked Sep 4, 2026
15	Guiu IPIndirect evidence	Paris, FranceHQ checked Sep 4, 2026	11-50	24
	“La propriété intellectuelle est notre cœur de métier, qu'il s'agisse de brevets, de savoir-faire, de marques, de modèles ou de droits d'auteur, nous proposons - De sécuriser vos…” Source: company website · checked Sep 4, 2026
16	Taoma PartnersIndirect evidence	Paris, FranceHQ checked Sep 4, 2026	11-50	22
	“TAoMA Partners est un des premiers cabinets à avoir réuni en une seule structure, dès sa création, deux professions juridiques, celle d’avocat et celle de conseil en propriété…” Source: company website · checked Sep 4, 2026
17	TwelveIndirect evidence	Paris, FranceHQ checked Sep 4, 2026	1-10	21
	“TWELVE est un cabinet d'avocats créé en 2012 par quatre avocats au barreau de Paris, dédiés au droit de la propriété littéraire et artistique, au droit des marques et dessins et…” Source: company website · checked Sep 4, 2026
18	IP TrustIndirect evidence	Paris, FranceHQ checked Sep 4, 2026	11-50	20
	“Associés : Emmanuel Huyghe, Elsa Martin Touaux, Maryse Dulout, Claudine Kauffmann, Alexandre Delye, Grégory Riou IP TRUST réunit une équipe de professionnels formés pour…” Source: company website · checked Sep 4, 2026
19	Cabinet Camus LebkiriIndirect evidence	Paris, FranceHQ checked Sep 4, 2026	11-50	20
	“Notre cabinet, fondé en 2007 par Olivier CAMUS et Alexandre LEBKIRI, deux ingénieurs-Conseils en Propriété Industrielle expérimentés, vous accompagnera efficacement dans…” Source: company website · checked Sep 4, 2026
20	Bandpay & GreuterStrong evidence	Paris, FranceHQ checked Sep 4, 2026	11-50	20
	“Bandpay & Greuter is an IP law firm striving to modernize services in patent matters.” Source: company website · checked Sep 4, 2026
21	Jacobacci Coralis HarleIndirect evidence	Paris, FranceHQ checked Sep 4, 2026	51-200	19
	“Le cabinet Jacobacci Coralis Harle est né en 2016 du rapprochement entre le cabinet Jacobacci & Partners et le cabinet Coralis Harle Phelip, deux cabinets historiques ayant une…” Source: company website · checked Sep 4, 2026
22	Beaumont Brevets & MarquesIndirect evidence	Grenoble, FranceHQ checked Sep 4, 2026	11-50	18
	“We accompany a broad range of clients, including companies, individuals and institutions, operating across France and abroad.” Source: company website · checked Sep 4, 2026
23	Bourdon & AssociésIndirect evidence	Paris, FranceHQ checked Sep 4, 2026	1-10	16
	“BOURDON ASSOCIES is a legal services company based out of 156 RUE DE RIVOLI, Paris, Îledefrance, France.” Source: company website · checked Sep 4, 2026

Showing 23 of 291 international patent law firms based in France

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 1,672 reachable decision-makers.

Free signup · no credit card

See all 291 companies

International patent law firms based in France at a glance

As of Sep 4, 2026

1-10Median size (employees)

ParisLargest hub · 159 HQs

70Contacts with mobile numbers

Sep 4, 2026Data refreshed

Companies by employee count

1-10

220

11-50

51-200

201-500

Verified emails by last verification

0–30

31–60

108

61–90

868

90–180

693

180+

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 international patent 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 France whose own description of what they do matches “international patent 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 international patent law firms, and records with no verified work email. Companies headquartered outside France 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, 1,672 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 4, 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.

International patent law firms by metro

International patent law firms in Paris159

Frequently asked

How many international patent law firms are there based in France?

RevenueBase identified 291 international patent law firms headquartered in France 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?

Plasseraud IP, headquartered in France, tops this list with the largest team on record.

Which city has the most international patent law firms?

Paris leads with 159 headquartered companies, followed by Lyon (20) and Marseille (9).

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 1,672 verified decision-maker contacts tracked across these 291 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 4, 2026.

Ready to reach these companies? Verified emails and direct dials for all 291 international patent law firms based in France. Start with a free account, no credit card.

Get the full list

Related lists

International patent law firms by geography

Browse the directory

Browse: Companies home · All France lists · All International patent law firms lists · New lists

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.