Company lists · Data refreshed September 2026

Top 25 Software patent firms based in France

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

Compiled by the RevenueBase Data Team Data refreshed Sep 6, 2026 120 companies tracked

RevenueBase identified 120 software patent firms headquartered in France as of September 2026 and tracks 1,556 professional contacts across them, including 557 with verified work emails and 24 with mobile numbers. Paris is the largest hub.

This list covers software patent 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 6, 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 6, 2026 86% judged on-target in blind review

120Companies

1,556Contacts tracked

557Verified emails

24Mobile numbers

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The 25 largest software patent firms based in France

Ranked by team size

Top 25 of 120 software patent firms based in France, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to software patent 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	Lavoix	Indirect evidence	Paris, FranceHQ checked Sep 6, 2026	201-500	186 contacts →
	“Lavoixis a leading firm fully dedicated to IP.” Source: company website · checked Sep 6, 2026
2	Groupe Vidon	Indirect evidence	Rennes, FranceHQ checked Sep 6, 2026	51-200	51 contacts →
	“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 6, 2026
3	ICOSA	Indirect evidence	Paris, FranceHQ checked Sep 6, 2026	51-200	50 contacts →
	“ICOSA is an IP Law firm dedicated to Life Sciences, Chemistry and Medical Device.” Source: company website · checked Sep 6, 2026
4	Haas Avocats	Indirect evidence	Paris, FranceHQ checked Sep 6, 2026	11-50	37 contacts →
	“Haas Avocats is a law firm specializing in new technologies, digital and intellectual property law.” Source: company website · checked Sep 6, 2026
5	Becker & Associes	Indirect evidence	Paris, FranceHQ checked Sep 6, 2026	11-50	27 contacts →
	“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 6, 2026
6	Guiu IP	Indirect evidence	Paris, FranceHQ checked Sep 6, 2026	11-50	24 contacts →
	“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 6, 2026
7	FÉRAL	Indirect evidence	Paris, FranceHQ checked Sep 6, 2026	11-50	22 contacts →
	“Technologies and digital, intellectual property, media, mediation and complex litigation” Source: company website · checked Sep 6, 2026
8	IP Trust	Indirect evidence	Paris, FranceHQ checked Sep 6, 2026	11-50	20 contacts →
	“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 6, 2026
9	Bandpay & Greuter	Partial evidence	Paris, FranceHQ checked Sep 6, 2026	11-50	20 contacts →
	“Bandpay & Greuter is an IP law firm striving to modernize services in patent matters.” Source: company website · checked Sep 6, 2026
10	Beaumont Brevets & Marques	Indirect evidence	Grenoble, FranceHQ checked Sep 6, 2026	11-50	18 contacts →
	“We accompany a broad range of clients, including companies, individuals and institutions, operating across France and abroad.” Source: company website · checked Sep 6, 2026
11	Jacobacci Coralis Harle	Indirect evidence	Paris, FranceHQ checked Sep 6, 2026	51-200	18 contacts →
	“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 6, 2026
12	MCE Carrel Avocats	Indirect evidence	Paris, FranceHQ checked Sep 6, 2026	1-10	16 contacts →
	“A Boutique law firm in Paris and Geneva, we provide creative legal services for the protection, development and transfer of your innovations.” Source: company website · checked Sep 6, 2026
13	Cabinet LE Guen & Associes	Indirect evidence	Saint-malo Cedex, FranceHQ checked Sep 6, 2026	11-50	14 contacts →
	“Depuis 1970, nous conseillons des grands groupes internationaux mais aussi des PME-PMI, des inventeurs indépendants pour déposer et gérer leurs droits de Propriété Industrielle en…” Source: company website · checked Sep 6, 2026
14	Benech Avocats & Conseils EN Propriété Industrielle	Indirect evidence	Paris, FranceHQ checked Sep 6, 2026	11-50	10 contacts →
	“Nous assistons nos clients depuis près de 30 ans dans leur stratégie de propriété intellectuelle en intervenant à leurs côtés, en Europe et à l’international, tant aux stades de…” Source: company website · checked Sep 6, 2026
15	OAK & FOX	Indirect evidence	Paris, FranceHQ checked Sep 6, 2026	1-10	9 contacts →
	“Le Cabinet OAK & FOX est un cabinet de propriété industrielle.” Source: company website · checked Sep 6, 2026
16	Cabinet Netter	Indirect evidence	Paris, FranceHQ checked Sep 6, 2026	11-50	9 contacts →
	“CABINET NETTER is a law practice company based out of 85 boulevard de Courcelles, PARIS, France.” Source: company website · checked Sep 6, 2026
17	IP Sphere	Indirect evidence	Bordeaux, FranceHQ checked Sep 6, 2026	1-10	8 contacts →
	“Experts reconnus en droit de la propriété intellectuelle Dans un monde en pleine mutation, il y a tant à inventer, tant à protéger.” Source: company website · checked Sep 6, 2026
18	Cabinet Didier Martin	Indirect evidence	Limonest, FranceHQ checked Sep 6, 2026	1-10	8 contacts →
	“Le Cabinet Didier Martin est spécialisé en droit des brevets et il offre l'ensemble des services requis pour traiter des questions relatives à ce domaine.” Source: company website · checked Sep 6, 2026
19	In Concreto	Indirect evidence	Paris, FranceHQ checked Sep 6, 2026	1-10	8 contacts →
	“Cabinet In Concreto spécialisé dans la protection et la défense de vos droits de Propriété Intellectuelle.” Source: company website · checked Sep 6, 2026
20	LE Stanc & Associés	Indirect evidence	Montpellier, FranceHQ checked Sep 6, 2026	1-10	8 contacts →
	“Our firm offers over 40 years of experience in intellectual property law, new technology law and communication law.” Source: company website · checked Sep 6, 2026
21	Fedit-Loriot	Partial evidence	Paris, FranceHQ checked Sep 6, 2026	11-50	7 contacts →
	“Fedit-Loriot is a Patent and Trademark Firm, serving a diverse domestic and international clientele in Europe, Japan, China, Korea and the United States.” Source: company website · checked Sep 6, 2026
22	Aconic Avocats	Indirect evidence	Paris, FranceHQ checked Sep 6, 2026	1-10	6 contacts →
	“Aconic est un cabinet de niche dédié à la propriété intellectuelle et aux nouvelles technologies, basé à Paris et Lyon.” Source: company website · checked Sep 6, 2026
23	Hiro Avocats	Indirect evidence	Paris, FranceHQ checked Sep 6, 2026	1-10	6 contacts →
	“HIRO Avocats est né de la volonté d’offrir aux acteurs de la création et de l’innovation une assistance personnalisée au fait des évolutions technologiques et du foisonnement des…” Source: company website · checked Sep 6, 2026
24	Behring	Indirect evidence	Paris, FranceHQ checked Sep 6, 2026	1-10	6 contacts →
	“BEHRING is a law firm specializing in intellectual property, information and communication technologies and media.” Source: company website · checked Sep 6, 2026
25	Clery Devernay	Indirect evidence	Paris, FranceHQ checked Sep 6, 2026	1-10	6 contacts →
	“CLÉRY DEVERNAY est votre cabinet d’avocats constitué exclusivement d’experts en droit de la Propriété Intellectuelle, dont l’origine remonte à plus de 30 ans.” Source: company website · checked Sep 6, 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: software patent 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 software patent firms.
Partial evidence: Its own public description names part of software patent firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name software patent 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 120 software patent firms based in France

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Software patent firms based in France at a glance

As of Sep 6, 2026

35.8%Verified-email coverage

1.5%Mobile-number coverage

13.0Average contacts per company

1-10Median size (employees)

56.7%Largest-city concentration · Paris

Sep 6, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

5310–30

2631–60

061–90

090–180

0180+

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 software patent 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 France whose own description of what they do matches “software patent 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 software patent 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 software patent 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 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, 557 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 6, 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.

Software patent firms by metro

Software patent firms in Paris68

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 software patent 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 software patent firms are there based in France?

RevenueBase identified 120 software patent 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?

Lavoix, headquartered in Paris, tops this list with the largest team on record.

Which city has the most software patent firms?

Paris leads with 68 headquartered companies, followed by Lyon (9) and Marseille (3).

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 557 verified decision-maker contacts tracked across these 120 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 6, 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.