Company lists · Data refreshed September 2026

Top 25 Software patent firms based in Paris, France

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

Compiled by the RevenueBase Data Team Data refreshed Sep 13, 2026 127 companies tracked

RevenueBase identified 127 software patent firms headquartered in Paris, France as of September 2026 and tracks 1,587 professional contacts across them, including 729 with verified work emails and 31 with mobile numbers. Paris is the largest hub.

This list covers software patent firms headquartered in Paris, 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 13, 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 13, 2026 86% judged on-target in blind review

127Companies

1,587Contacts tracked

729Verified emails

31Mobile numbers

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The 25 largest software patent firms based in Paris, France

Ranked by team size

Top 25 of 127 software patent firms based in Paris, France, ranked by team size, largest first. Data refreshed Sep 13, 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 13, 2026	201-500	186 contacts →
	Indirect evidence “Lavoixis a leading firm fully dedicated to IP.” Source: RevenueBase Database · checked Sep 13, 2026
2	Regimbeau	Indirect evidence	Paris, FranceHQ checked Sep 13, 2026	201-500	164 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 13, 2026
3	Casalonga	Indirect evidence	Paris, FranceHQ checked Sep 13, 2026	51-200	107 contacts →
	Indirect evidence “CASALONGA is a leading European Intellectual Property (IP) law firm supporting and advising innovation-driven organisations across Europe and beyond.” Source: RevenueBase Database · checked Sep 13, 2026
4	ICOSA	Indirect evidence	Paris, FranceHQ checked Sep 13, 2026	51-200	50 contacts →
	Indirect evidence “ICOSA is an IP Law firm dedicated to Life Sciences, Chemistry and Medical Device.” Source: RevenueBase Database · checked Sep 13, 2026
5	Ipsilon Ex. Nony	Indirect evidence	Paris, FranceHQ checked Sep 13, 2026	51-200	42 contacts →
	Indirect evidence “Le cabinet Nony a été intégré à IPSILON.” Source: RevenueBase Database · checked Sep 13, 2026
6	Haas Avocats	Indirect evidence	Paris, FranceHQ checked Sep 13, 2026	11-50	37 contacts →
	Indirect evidence “Haas Avocats is a law firm specializing in new technologies, digital and intellectual property law.” Source: RevenueBase Database · checked Sep 13, 2026
7	Guiu IP	Indirect evidence	Paris, FranceHQ checked Sep 13, 2026	11-50	24 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 13, 2026
8	FÉRAL	Indirect evidence	Paris, FranceHQ checked Sep 13, 2026	11-50	22 contacts →
	Indirect evidence “Technologies and digital, intellectual property, media, mediation and complex litigation” Source: RevenueBase Database · checked Sep 13, 2026
9	Twelve	Indirect evidence	Paris, FranceHQ checked Sep 13, 2026	1-10	21 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 13, 2026
10	IP Trust	Indirect evidence	Paris, FranceHQ checked Sep 13, 2026	11-50	20 contacts →
	Indirect evidence “Associés : Emmanuel Huyghe, Elsa Martin Touaux, Maryse Dulout, Claudine Kauffmann, Alexandre Delye, Grégory Riou IP TRUST réunit une équipe de professionnels formés pour…” Source: RevenueBase Database · checked Sep 13, 2026
11	Bandpay & Greuter	Partial evidence	Paris, FranceHQ checked Sep 13, 2026	11-50	20 contacts →
	Partial evidence “Bandpay & Greuter is an IP law firm striving to modernize services in patent matters.” Source: RevenueBase Database · checked Sep 13, 2026
12	Jacobacci Coralis Harle	Indirect evidence	Paris, FranceHQ checked Sep 13, 2026	51-200	18 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 13, 2026
13	MCE Carrel Avocats	Indirect evidence	Paris, FranceHQ checked Sep 13, 2026	1-10	16 contacts →
	Indirect evidence “A Boutique law firm in Paris and Geneva, we provide creative legal services for the protection, development and transfer of your innovations.” Source: RevenueBase Database · checked Sep 13, 2026
14	Momentum Avocats	Indirect evidence	Paris, FranceHQ checked Sep 13, 2026	1-10	15 contacts →
	Indirect evidence “Cabinet d'avocats d’affaires indépendant, Momentum Avocats assiste sa clientèle en droit de la propriété intellectuelle et des technologies de l’information et de la…” Source: RevenueBase Database · checked Sep 13, 2026
15	DUNE	Indirect evidence	Paris, FranceHQ checked Sep 13, 2026	1-10	15 contacts →
	Indirect evidence “Composée d’une équipe engagée et expérimentée, Dune conseille, accompagne et protège ses clients dans leurs besoins juridiques et contentieux.” Source: RevenueBase Database · checked Sep 13, 2026
16	Barnett Avocats	Indirect evidence	Paris, FranceHQ checked Sep 13, 2026	1-10	14 contacts →
	Indirect evidence “Barnett Avocats is a law firm specialised in intellectual property in the following areas: music, art and design, cinema, audiovisual, fashion and, more broadly, all creative…” Source: RevenueBase Database · checked Sep 13, 2026
17	Blanche Avocats	Indirect evidence	Paris, FranceHQ checked Sep 13, 2026	1-10	12 contacts →
	Indirect evidence “Founded by three partners who acquired significant experience in leading international and French law firms, Blanche Avocats is an independant law firm focusing on Intellectual…” Source: RevenueBase Database · checked Sep 13, 2026
18	Cabinet Bouchara & Avocats	Indirect evidence	Paris, FranceHQ checked Sep 13, 2026	1-10	12 contacts →
	Indirect evidence “Fondé en 2005 par Vanessa Bouchara, le Cabinet Bouchara & Avocats est un cabinet d’avocats situé à Paris, Lyon et Strasbourg.” Source: RevenueBase Database · checked Sep 13, 2026
19	Bonnier Saint-Felix	Indirect evidence	Paris, FranceHQ checked Sep 13, 2026	1-10	11 contacts →
	Indirect evidence “BONNIER SAINT-FELIX est un cabinet d'avocats d'affaires parisien.” Source: RevenueBase Database · checked Sep 13, 2026
20	Benech Avocats & Conseils EN Propriété Industrielle	Indirect evidence	Paris, FranceHQ checked Sep 13, 2026	11-50	10 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 13, 2026
21	Osmose	Indirect evidence	Paris, FranceHQ checked Sep 13, 2026	1-10	10 contacts →
	Indirect evidence “OSMOSE est un cabinet d’avocats qui offre à ses clients, particuliers, entreprises ou entités publiques, des prestations de conseil et de contentieux en matière de propriété…” Source: RevenueBase Database · checked Sep 13, 2026
22	OAK & FOX	Indirect evidence	Paris, FranceHQ checked Sep 13, 2026	1-10	9 contacts →
	Indirect evidence “Le Cabinet OAK & FOX est un cabinet de propriété industrielle.” Source: RevenueBase Database · checked Sep 13, 2026
23	Kern & Weyl	Indirect evidence	Paris, FranceHQ checked Sep 13, 2026	1-10	9 contacts →
	Indirect evidence “KERN & WEYL est un cabinet d’avocats basé à Paris, dédié au conseil et au contentieux en droit de la propriété intellectuelle (droits d’auteur, marques, dessins et modèles…” Source: RevenueBase Database · checked Sep 13, 2026
24	Cabinet Netter	Indirect evidence	Paris, FranceHQ checked Sep 13, 2026	11-50	9 contacts →
	Indirect evidence “CABINET NETTER is a law practice company based out of 85 boulevard de Courcelles, PARIS, France.” Source: RevenueBase Database · checked Sep 13, 2026
25	In Concreto	Indirect evidence	Paris, FranceHQ checked Sep 13, 2026	1-10	8 contacts →
	Indirect evidence “Cabinet In Concreto spécialisé dans la protection et la défense de vos droits de Propriété Intellectuelle.” Source: RevenueBase Database · checked Sep 13, 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 127 software patent firms based in Paris, France

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Software patent firms based in Paris, France at a glance

As of Sep 13, 2026

45.9%Verified-email coverage

2.0%Mobile-number coverage

12.5Average contacts per company

1-10Median size (employees)

53.5%Largest-city concentration · Paris

Sep 13, 2026Page data refreshed

Companies by employee count

1-10

102

11-50

51-200

201-500

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 15.0d

5840–30

14331–60

261–90

090–180

0180+

Company record updated

Median 57.0d

00–30

82131–60

58961–90

11390–180

64180+

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 Paris, 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 Paris 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, 729 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 13, 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 in France

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 Paris, France?

RevenueBase identified 127 software patent firms headquartered in Paris, 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 729 verified decision-maker contacts tracked across these 127 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 13, 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.