Company lists · Data refreshed September 2026

Top 25 Gene therapy clinical research organizations based in France

Name: Gene therapy clinical research organizations based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 127 companies tracked

RevenueBase identified 127 gene therapy clinical research organizations headquartered in France as of September 2026 and tracks 4,518 professional contacts across them, including 1,932 with verified work emails. Paris is the largest hub.

This list covers gene therapy clinical research organizations 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 16, 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 16, 2026 86% judged on-target in blind review

127Companies

4,518Contacts tracked

1,932Verified emails

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The 25 largest gene therapy clinical research organizations based in France

Ranked by team size

Top 25 of 127 gene therapy clinical research organizations based in France, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to gene therapy clinical research organizations: 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	Excelya	Indirect evidence	Boulogne-billancourt, FranceHQ checked Sep 16, 2026	501-1,000	652 contacts →
	Indirect evidence “Excelya is an independent partner that serves Biotech, Pharma, and Medical Device organizations with a comprehensive range of Full-service CRO, FSP, and Resourcing solutions…” Source: RevenueBase Database · checked Sep 16, 2026
2	Genethon	Indirect evidence	Évry, FranceHQ checked Sep 16, 2026	201-500	293 contacts →
	Indirect evidence “Généthon est un laboratoire à but non lucratif, créé et soutenu par l’AFM-Téléthon depuis 1990.” Source: RevenueBase Database · checked Sep 16, 2026
3	ERBC	Strong evidence	Baugy, FranceHQ checked Sep 16, 2026	201-500	218 contacts →
	Strong evidence “ERBC is a 50 years’ leading CRO committed to bridge the gap between preclinical and clinical research by better predicting the efficacy and safety of new compounds offering…” Source: RevenueBase Database · checked Sep 16, 2026
4	Innate Pharma	Indirect evidence	Marseille, FranceHQ checked Sep 16, 2026	201-500	194 contacts →
	Indirect evidence “Innate Pharma S.A.” Source: RevenueBase Database · checked Sep 16, 2026
5	Oncodesign Services	Partial evidence	Dijon Cedex, FranceHQ checked Sep 16, 2026	51-200	191 contacts →
	Partial evidence “Oncodesign Services supports biopharma and biotechnology teams navigating critical preclinical decisions as programs progress toward the clinic.” Source: RevenueBase Database · checked Sep 16, 2026
6	Yposkesi, An SK Pharmteco Company	Indirect evidence	Évry, FranceHQ checked Sep 16, 2026	51-200	147 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
7	Icta PM	Partial evidence	Fontaine Les Dijon, FranceHQ checked Sep 16, 2026	201-500	128 contacts →
	Partial evidence “ICTA is an international privately-owned CRO with 40 years of experience in clinical R&D, pharmaco-epidemiology and Early and Compassionate programs for traditional and advanced…” Source: RevenueBase Database · checked Sep 16, 2026
8	Texcell	Strong evidence	Evry, FranceHQ checked Sep 16, 2026	51-200	112 contacts →
	Strong evidence “About Texcell We are a specialized CRO supporting biologics, vaccines, medical devices, cell and gene therapies, and other complex biological products.” Source: RevenueBase Database · checked Sep 16, 2026
9	OSE Immunotherapeutics	Indirect evidence	Nantes, FranceHQ checked Sep 16, 2026	51-200	92 contacts →
	Indirect evidence “OSE Immunotherapeutics, a biotech dedicated to developing first-in-class assets in immuno-oncology (IO) & immuno-inflammation (I&I).” Source: RevenueBase Database · checked Sep 16, 2026
10	Cerc Cardiovascular European Research Center	Partial evidence	Massy, FranceHQ checked Sep 16, 2026	51-200	84 contacts →
	Partial evidence “CERC is a specialized CRO driven by physicians recognized for their expertise in cardiovascular research.” Source: RevenueBase Database · checked Sep 16, 2026
11	Biofortis	Strong evidence	Saint-herblain, FranceHQ checked Sep 16, 2026	51-200	80 contacts →
	Strong evidence “A leading C.R.O specialised in designing and running of experimental, pre-clinical sample analysis and clinical research projects, with a unique nutrition and microbiome…” Source: RevenueBase Database · checked Sep 16, 2026
12	Domain Therapeutics	Strong evidence	Illkirch-graffenstaden, FranceHQ checked Sep 16, 2026	51-200	76 contacts →
	Strong evidence “Domain Therapeutics, a clinical-stage global biopharmaceutical company, focused on developing innovative immunotherapies targeting G Protein-Coupled Receptors (GPCRs), one of the…” Source: RevenueBase Database · checked Sep 16, 2026
13	Pathoquest	Indirect evidence	Paris, FranceHQ checked Sep 16, 2026	51-200	66 contacts →
	Indirect evidence “Charles River Labs has acquired Pathoquest, strengthening its end-to-end biologics testing portfolio with Next Generation Sequencing (NGS).” Source: RevenueBase Database · checked Sep 16, 2026
14	Iris Pharma	Indirect evidence	La Gaude, FranceHQ checked Sep 16, 2026	51-200	59 contacts →
	Indirect evidence “Not just an ophthalmology-focused CRO, Iris Pharma helps clients around the world navigate every stage of the drug and device development process and delivers customized solutions…” Source: RevenueBase Database · checked Sep 16, 2026
15	Eurofins Optimed Clinical Research	Indirect evidence	Gières, FranceHQ checked Sep 16, 2026	51-200	47 contacts →
	Indirect evidence “Eurofins Optimed’s mission is to contribute to global Health & Safety.” Source: RevenueBase Database · checked Sep 16, 2026
16	Genosafe	Strong evidence	Evry, FranceHQ checked Sep 16, 2026	11-50	46 contacts →
	Strong evidence “GenoSafe is a CRO providing analytical testing services for the evaluation of quality, safety and efficacy of Gene and Cell therapy candidates including - GLP biodistribution…” Source: RevenueBase Database · checked Sep 16, 2026
17	Coave Therapeutics	Strong evidence	Paris, FranceHQ checked Sep 16, 2026	n/a	42 contacts →
	Strong evidence “Coave Therapeutics is a clinical stage biotechnology company focused on developing life changing gene therapies in rare Ocular and CNS (Central Nervous System) diseases.” Source: RevenueBase Database · checked Sep 16, 2026
18	Target	Indirect evidence	Nantes, FranceHQ checked Sep 16, 2026	51-200	41 contacts →
	Indirect evidence “Laboratoire de Thérapie génique de Nantes” Source: RevenueBase Database · checked Sep 16, 2026
19	Imagine Institute Of Genetic Diseases	Partial evidence	Paris, FranceHQ checked Sep 16, 2026	501-1,000	36 contacts →
	Partial evidence “Imagine Institute for genetic disease is a French translational research institute which performs state-of-the-art research in order to better understand genetic diseases.” Source: RevenueBase Database · checked Sep 16, 2026
20	Etap-Lab	Partial evidence	Vandoeuvre-lès-nancy, FranceHQ checked Sep 16, 2026	11-50	35 contacts →
	Partial evidence “ETAP-LAB – Preclinical CRO supporting therapeutic innovations for over 35 years ETAP-LAB is a recognized European preclinical CRO delivering efficient, cost-effective services to…” Source: RevenueBase Database · checked Sep 16, 2026
21	Xentech	Partial evidence	Evry, FranceHQ checked Sep 16, 2026	11-50	32 contacts →
	Partial evidence “XenTech is Biotech/Contract Research Organization (CRO) dedicated to translational research in oncology which offers preclinical services to evaluate the anti-cancer potential of…” Source: RevenueBase Database · checked Sep 16, 2026
22	Clinaxel	Strong evidence	Loos, FranceHQ checked Sep 16, 2026	11-50	32 contacts →
	Strong evidence “Oncovet Clinical Research (O.C.R.) is an innovative Contract Research Organization specialized in the conception and management of clinical trials on Dogs & Cats models with…” Source: RevenueBase Database · checked Sep 16, 2026
23	Flash Biosolutions	Indirect evidence	Toulouse, FranceHQ checked Sep 16, 2026	11-50	29 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
24	Sangamo Therapeutics France	Partial evidence	Valbonne, FranceHQ checked Sep 16, 2026	201-500	28 contacts →
	Partial evidence “Sangamo Therapeutics France is the French subsidiary of Sangamo Therapeutics Inc.” Source: RevenueBase Database · checked Sep 16, 2026
25	Ilife Consulting	Partial evidence	Paris, FranceHQ checked Sep 16, 2026	11-50	20 contacts →
	Partial evidence “With over 25 years of experience and more than 30 supervised clinical trials, our team is specialised in early clinical development, transforming clinical data into value-creating…” Source: RevenueBase Database · checked Sep 16, 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: gene therapy clinical research organizations. 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 gene therapy clinical research organizations.
Partial evidence: Its own public description names part of gene therapy clinical research organizations, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name gene therapy clinical research organizations. 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 gene therapy clinical research organizations based in France

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Gene therapy clinical research organizations based in France at a glance

As of Sep 16, 2026

42.8%Verified-email coverage

35.6Average contacts per company

11-50Median size (employees)

26.0%Largest-city concentration · Paris

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for France, so it is reported there. Company counts and contact totals on this page are exact for France, over 127 companies.

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 gene therapy clinical research organizations, 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 “gene therapy clinical research organizations”. 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 gene therapy clinical research organizations), 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 gene therapy clinical research organizations, 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, 1,932 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 16, 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.

Gene therapy clinical research organizations by metro

Gene therapy clinical research organizations in Paris33

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 gene therapy clinical research organizations, 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 gene therapy clinical research organizations are there based in France?

RevenueBase identified 127 gene therapy clinical research organizations 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?

Excelya, headquartered in Boulogne-Billancourt, tops this list with the largest team on record.

Which city has the most gene therapy clinical research organizations?

Paris leads with 33 headquartered companies, followed by Toulouse (7) and Nantes (5).

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 1,932 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 16, 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.