Company lists · Data refreshed September 2026

Top 25 Algae biotech companies based in France

RevenueBase identified 89 algae biotech companies headquartered in France as of September 2026 and tracks 775 professional contacts across them, including 269 with verified work emails and 12 with mobile numbers. Paris is the largest hub.

This list covers algae biotech companies 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
89Companies
775Contacts tracked
269Verified emails
12Mobile numbers
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The 25 largest algae biotech companies based in France

Ranked by team size
Top 25 of 89 algae biotech companies 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 algae biotech companies: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceLibourne, FranceHQ checked Sep 6, 202651-20084 contacts →

“About Fermentalg: Based in Libourne (France), Fermentalg is an industrial biotechnology company, specialized in the production of oil rich in fatty acids (omega-3), proteins and…”

Source: company website · checked Sep 6, 2026
2Indirect evidenceBaillargues, FranceHQ checked Sep 6, 202651-20057 contacts →

“Created in 2007 near Montpellier-France, Microphyt develops and markets unique microalgae-based bioactives using breakthrough technologies and processes.”

Source: company website · checked Sep 6, 2026
3Indirect evidenceParis, FranceHQ checked Sep 6, 202651-20051 contacts →

“Algaia, part of the JRS Rettenmaier group, is a company developing, producing and commercializing Natural Extracts, mostly made out of seaweed.”

Source: company website · checked Sep 6, 2026
4Indirect evidenceEvry, FranceHQ checked Sep 6, 202611-5044 contacts →

“Acteur engagé dans la lutte contre le réchauffement climatique, Global Bioenergies a développé un procédé unique au monde pour produire des SAF et des e-SAF à partir de ressources…”

Source: company website · checked Sep 6, 2026
5Indirect evidenceChassieu, FranceHQ checked Sep 6, 202611-5031 contacts →

“Founded in 2010, Amoéba is an innovative industrial greentech specialised in the treatment of microbiological risk of natural resources.”

Source: company website · checked Sep 6, 2026
6Indirect evidenceNice, FranceHQ checked Sep 6, 202611-5022 contacts →

“Building a sustainable future together.”

Source: company website · checked Sep 6, 2026
7Indirect evidenceGuérande, FranceHQ checked Sep 6, 202611-5022 contacts →

“AlgoSource is the French pioneer in producing high-value bioactive molecules from microalgae biomass and natural marine resources, dedicated to nutraceuticals and preventive…”

Source: company website · checked Sep 6, 2026
8Partial evidenceTourcoing, FranceHQ checked Sep 6, 20261-1022 contacts →

“Soucieux des enjeux environnementaux et sanitaires actuels, Bioteos a pour ambition d’allier nature et technologie au service de l’Humain.”

Source: company website · checked Sep 6, 2026
9Indirect evidenceSaint-malo, FranceHQ checked Sep 6, 202611-5019 contacts →

“At the forefront of innovation, we never stop to question ourselves.”

Source: company website · checked Sep 6, 2026
10Indirect evidencePalaiseau, FranceHQ checked Sep 6, 20261-1017 contacts →

“Unlocking microalgae potential EIT Food Seedbed Incubator (2023 Cohort)"Deeptech" certified by French Public Investment Bank (BPI)#microalgae #alternativeprotein”

Source: company website · checked Sep 6, 2026
11Indirect evidenceLibourne, FranceHQ checked Sep 6, 20261-1016 contacts →

“CarbonWorks is developing an innovative and versatile photobioreactor to unlock the industrial exploitation of microalgae.”

Source: company website · checked Sep 6, 2026
12Indirect evidenceParis, FranceHQ checked Sep 6, 202611-5015 contacts →

“Les super-pouvoirs des algues dans vos assiettes En contribuant à notre bien-être, on peut contribuer à celui de la planète Entreprise à mission”

Source: company website · checked Sep 6, 2026
13Indirect evidenceBordeaux, FranceHQ checked Sep 6, 202611-5014 contacts →

“Fighting climate change, one microalgae at a time.”

Source: company website · checked Sep 6, 2026
14Indirect evidenceTaulé, FranceHQ checked Sep 6, 202611-5013 contacts →

“Notre première campagne sur ULULE ici : https://bit.ly/3zVrpuA L’océan façon veggie!”

Source: company website · checked Sep 6, 2026
15Indirect evidencePleuven, FranceHQ checked Sep 6, 202611-5012 contacts →

“By conscientiously promoting marine biodiversity, Seanova wants to minimize the impact of humans on the marine environment and offer innovative and effective solutions derived…”

Source: company website · checked Sep 6, 2026
16Indirect evidenceBordeaux, FranceHQ checked Sep 6, 20261-1011 contacts →

“We specialize in developing high-yield natural microalgae strains, tailored for producers seeking to enhance their productivity.”

Source: company website · checked Sep 6, 2026
17Indirect evidencePlouguerneau, FranceHQ checked Sep 6, 20261-109 contacts →

“SCEA FRANCE HALIOTIS is an aquaculture farming company based out of Kerazan, Plouguerneau, Bretagne, France.”

Source: company website · checked Sep 6, 2026
18Partial evidenceBrest, FranceHQ checked Sep 6, 20261-108 contacts →

“Polymaris Biotechnology est une société de biotechnologie bleue, créée en 2008 par Anthony Courtois et Bertrand Thollas.”

Source: company website · checked Sep 6, 2026
19Indirect evidenceCestas, FranceHQ checked Sep 6, 20261-108 contacts →

“IMMUNRISE BIOCONTROL FRANCE is specialised in research and development of biocontrol microalgae solutions.”

Source: company website · checked Sep 6, 2026
20Partial evidenceParis, FranceHQ checked Sep 6, 20261-107 contacts →

“AGS Therapeutics, based in Paris and Genopole Evry, France, is a biotech company pioneering the use of microalgae extracellular vesicles (MEVs) as a universal delivery system for…”

Source: company website · checked Sep 6, 2026
21Indirect evidenceSt-nazaire, FranceHQ checked Sep 6, 20261-107 contacts →

“ZENI is an impact-driven company, aiming at using a sustainable nature-based solution to clean industrial waters with microalgae.”

Source: company website · checked Sep 6, 2026
22Indirect evidencePenvénan, FranceHQ checked Sep 6, 202611-505 contacts →

“SYMBIOMER est une entreprise spécialisée dans la récolte et la transformation d'algues basée au 18 rue de Tréguier, Penvénan, Bretagne, France.”

Source: company website · checked Sep 6, 2026
23Partial evidenceMontpellier, FranceHQ checked Sep 6, 20261-105 contacts →

“Phyco-Biotech Laboratories were founded in 2011 with a vision of microalgae valorization and an approach of optimal quality for all its products.”

Source: company website · checked Sep 6, 2026
24Indirect evidenceRoscoff, FranceHQ checked Sep 6, 20261-104 contacts →

“Notre activité est intimement liée à notre territoire : nous sommes implantés à Roscoff en Bretagne depuis 1991 et nous valorisons les algues, une ressource marine d’exception.”

Source: company website · checked Sep 6, 2026
25Partial evidenceNanterre, FranceHQ checked Sep 6, 202611-504 contacts →

“Created in 2010, ENNESYS develops and commercializes energetically self-sufficient micro-algae-based water and organic waste recycling equipment.”

Source: company website · checked Sep 6, 2026

Showing 25 of 89 algae biotech companies based in France

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Algae biotech companies based in France at a glance

As of Sep 6, 2026
34.7%Verified-email coverage
1.5%Mobile-number coverage
8.7Average contacts per company
1-10Median size (employees)
5.6%Largest-city concentration · Paris
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
63
11-50
21
51-200
4
201-500
1

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 algae biotech companies, 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 “algae biotech companies”. 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 algae biotech companies), 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 algae biotech companies, 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, 269 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.

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 algae biotech companies, 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 algae biotech companies are there based in France?

RevenueBase identified 89 algae biotech companies 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?

Fermentalg, headquartered in Libourne, tops this list with the largest team on record.

Which city has the most algae biotech companies?

Paris leads with 5 headquartered companies, followed by Aix-En-Provence (3) and Brest (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 269 verified decision-maker contacts tracked across these 89 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.