Company lists · Data refreshed September 2026

Top 24 Intellectual property law firms based in France

Name: Intellectual property 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 539 companies tracked

RevenueBase identified 539 intellectual property law firms headquartered in France as of September 2026 and tracks 5,439 professional contacts across them, including 2,318 with verified work emails and 107 with mobile numbers. Paris is the largest hub.

This list covers intellectual property 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

539Companies

5,439Contacts tracked

2,318Verified emails

107Mobile numbers

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The 24 largest intellectual property law firms based in France

Ranked by team size

Top 24 of 539 intellectual property 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 intellectual property 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	RegimbeauStrong 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	Germain MaureauPartial evidence	🌎, FranceHQ checked Sep 4, 2026	51-200	118
	“Germain Maureau, Cabinet de Conseils en Propriété Industrielle indépendant et de référence en Europe Protéger, valoriser et défendre vos droits de propriété intellectuelle Nous…” Source: company website · checked Sep 4, 2026
5	Ipsilon Intellectual PropertyStrong 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
6	CasalongaStrong 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
7	Lexing AvocatsIndirect evidence	Paris, FranceHQ checked Sep 4, 2026	51-200	86
	“Cabinet d'avocats dédié au droit des technologies depuis sa création en 1978.” Source: company website · checked Sep 4, 2026
8	Klein WennerPartial evidence	Paris, FranceHQ checked Sep 4, 2026	51-200	64
	“klein•wenner is a multicultural team of 43 lawyers, strongly organized around proven business law practices.” Source: company website · checked Sep 4, 2026
9	Deprez Guignot & Associés DDGIndirect evidence	Paris, FranceHQ checked Sep 4, 2026	11-50	62
	“Deprez Guignot Associés - DDG est une société d'avocats inscrite au barreau de Paris depuis 1987, qui regroupe 40 avocats et juristes dont 11 associés.” Source: company website · checked Sep 4, 2026
10	Nomos AvocatsIndirect evidence	Paris, FranceHQ checked Sep 4, 2026	51-200	62
	“NOMOS est un cabinet d’avocats d’affaires indépendant, composé d’une trentaine d’avocats et professionnels du droit, dont 11 associés, qui accompagnent leurs clients tant en…” Source: company website · checked Sep 4, 2026
11	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
12	Groupe VidonStrong 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
13	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
14	Ernest GutmannStrong 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
15	Coblence AvocatsIndirect evidence	Paris, FranceHQ checked Sep 4, 2026	11-50	49
	“Coblence avocats est un cabinet créé en 1984, dédié au droit des affaires et comptant à ce jour 45 avocats dont 13 associés.” Source: company website · checked Sep 4, 2026
16	Derriennic AssociésIndirect evidence	Paris, FranceHQ checked Sep 4, 2026	11-50	42
	“Cabinet d'avocats de droit des affaires et nouvelles technologies : =>"Acteur de référence dans les technologies de l’information et de la communication depuis plus de trente ans…” Source: company website · checked Sep 4, 2026
17	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
18	Haas AvocatsStrong evidence	Paris, FranceHQ checked Sep 4, 2026	11-50	37
	“Haas Avocats is a law firm specializing in new technologies, digital and intellectual property law.” Source: company website · checked Sep 4, 2026
19	KalliopéPartial evidence	Paris, FranceHQ checked Sep 4, 2026	11-50	33
	“Founded in 2008, Kalliopé is an independent law firm specialised in private and public business law.” Source: company website · checked Sep 4, 2026
20	Dtmv AvocatsPartial evidence	Paris, FranceHQ checked Sep 4, 2026	11-50	32
	“DTMV Avocats is a well-established law firm, created more than 50 years ago.” Source: company website · checked Sep 4, 2026
21	Valmy AvocatsIndirect evidence	Paris, FranceHQ checked Sep 4, 2026	11-50	31
	“Valmy Avocats propose à ses clients (institutionnels, PME/ ETI, entrepreneurs et investisseurs) un accompagnement transversal, en conseil et en contentieux, dans tous les domaines…” Source: company website · checked Sep 4, 2026
22	Morvilliers SentenacIndirect evidence	Toulouse, FranceHQ checked Sep 4, 2026	11-50	29
	“Dès son ouverture en 1989, le cabinet Morvilliers Sentenac & Associés repose sur des valeurs qui feront son succès : la spécialisation, la compétence et l'ouverture à…” Source: company website · checked Sep 4, 2026
23	Hautier IPStrong 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
24	Becker & AssociesStrong 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

Showing 24 of 539 intellectual property law firms based in France

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Intellectual property law firms based in France at a glance

As of Sep 4, 2026

1-10Median size (employees)

ParisLargest hub · 281 HQs

107Contacts with mobile numbers

Sep 4, 2026Data refreshed

Companies by employee count

1-10

420

11-50

51-200

201-500

Verified emails by last verification

0–30

31–60

155

61–90

1,209

90–180

948

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 intellectual property 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 “intellectual property 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 intellectual property 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, 2,318 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.

Intellectual property law firms by metro

Intellectual property law firms in Paris281
Intellectual property law firms in Lyon30

Frequently asked

How many intellectual property law firms are there based in France?

RevenueBase identified 539 intellectual property 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 intellectual property law firms?

Paris leads with 281 headquartered companies, followed by Lyon (30) and Marseille (16).

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 2,318 verified decision-maker contacts tracked across these 539 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.

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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.