Company lists · Data refreshed September 2026

Top 25 Biomass conversion companies based in France

Name: Biomass conversion companies based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 139 companies tracked

RevenueBase identified 139 biomass conversion companies headquartered in France as of September 2026 and tracks 3,655 professional contacts across them, including 1,755 with verified work emails. Paris is the largest hub.

This list covers biomass conversion 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 19, 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 19, 2026 86% judged on-target in blind review

139Companies

3,655Contacts tracked

1,755Verified emails

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The 25 largest biomass conversion companies based in France

Ranked by team size

Top 25 of 139 biomass conversion companies based in France, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to biomass conversion 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	AXENS	Strong evidence	Rueil-malmaison, FranceHQ checked Sep 19, 2026	1,001-5,000	1,572 contacts →
	Strong evidence “The Axens Group offers a complete range of solutions for the conversion of oil and biomass into cleaner fuels, the production and purification of major petrochemical…” Source: RevenueBase Database · checked Sep 19, 2026
2	Prodeval	Indirect evidence	Chateauneuf-sur-isère, FranceHQ checked Sep 19, 2026	201-500	362 contacts →
	Indirect evidence “Prodeval is leader in treatment and Biogas upgrading from the Anaerobic Digestion of organic waste.” Source: RevenueBase Database · checked Sep 19, 2026
3	Paprec Energies Opérations	Indirect evidence	Nantes, FranceHQ checked Sep 19, 2026	51-200	149 contacts →
	Indirect evidence “PAPREC ENERGIES OPERATIONS Filiale à 100% du Groupe Paprec depuis déc.” Source: RevenueBase Database · checked Sep 19, 2026
4	Clarke Energy - FR	Indirect evidence	Bouc-bel-air, FranceHQ checked Sep 19, 2026	201-500	90 contacts →
	Indirect evidence “Clarke Energy, a global leader in energy solutions, boasts an annual turnover of £350m and employs a team of 1,200 experts worldwide.” Source: RevenueBase Database · checked Sep 19, 2026
5	Vinci Environnement	Indirect evidence	Colombes, FranceHQ checked Sep 19, 2026	51-200	90 contacts →
	Indirect evidence “VINCI Environnement is involved in the engineering, design and built of turnkey renewable energy production units, in particular those using anaerobic digestion processes, and…” Source: RevenueBase Database · checked Sep 19, 2026
6	Hargassner France	Indirect evidence	Lavilledieu, FranceHQ checked Sep 19, 2026	51-200	74 contacts →
	Indirect evidence “Convinced of the need to rethink our heating systems towards a more resilient model, HARGASSNER France has been militating for the development of renewable energies and…” Source: RevenueBase Database · checked Sep 19, 2026
7	Compte.R	Partial evidence	Arlanc, FranceHQ checked Sep 19, 2026	51-200	74 contacts →
	Partial evidence “French industrial company and pioneer of the use of renewable energies, COMPTE.R designs and manufactures a full range of wood and biomass thermal generators.” Source: RevenueBase Database · checked Sep 19, 2026
8	Haffner Energy	Partial evidence	Vitry-le-françois, FranceHQ checked Sep 19, 2026	11-50	60 contacts →
	Partial evidence “Haffner Energy is a family-owned company that designs, manufactures and supplies solutions for the production of clean fuels from biomass residues.” Source: RevenueBase Database · checked Sep 19, 2026
9	Evergaz	Indirect evidence	Paris, FranceHQ checked Sep 19, 2026	51-200	55 contacts →
	Indirect evidence “Opérateur intégré spécialisé dans la production de biogaz et le développement de ses usages, Evergaz développe, détient et exploite un parc de centrales de production de biogaz.” Source: RevenueBase Database · checked Sep 19, 2026
10	Weiss France Energie	Partial evidence	Ugine, FranceHQ checked Sep 19, 2026	51-200	46 contacts →
	Partial evidence “WEISS FRANCE ENERGIE est concepteur, constructeur, installateur de chaudières industrielles biomasse qui s'appuie un savoir-faire reconnu et sur une histoire centenaire qui a…” Source: RevenueBase Database · checked Sep 19, 2026
11	Soler Group	Indirect evidence	Gyé Sur Seine, FranceHQ checked Sep 19, 2026	51-200	46 contacts →
	Indirect evidence “Founded in 1993 in Gyé-sur-Seine (Aube, Grand Est, France), the SOLER Group is one of the leaders in renewable carbon production, offering a unique and innovative technological…” Source: RevenueBase Database · checked Sep 19, 2026
12	Interis S.A.S	Indirect evidence	Les Mesneux, FranceHQ checked Sep 19, 2026	11-50	35 contacts →
	Indirect evidence “Biotechnology: the core of our expertise.” Source: RevenueBase Database · checked Sep 19, 2026
13	Deltalys	Indirect evidence	St.-fons, FranceHQ checked Sep 19, 2026	11-50	34 contacts →
	Indirect evidence “Faciliter & fiabiliser la purification des gaz renouvelables, par des solutions alternatives éco-responsables.” Source: RevenueBase Database · checked Sep 19, 2026
14	Hantsch SAS	Indirect evidence	Marlenheim, FranceHQ checked Sep 19, 2026	11-50	31 contacts →
	Indirect evidence “Aujourd’hui, HANTSCH TECHNIQUES POUR L’ENVIRONNEMENT, réalise un chiffre d’affaires de 28 Millions d’Euros et est un acteur majeur à fort développement dans les technologies liées…” Source: RevenueBase Database · checked Sep 19, 2026
15	Biomotors	Indirect evidence	Montpellier, FranceHQ checked Sep 19, 2026	11-50	29 contacts →
	Indirect evidence “Notre expérience dans le bioéthanol a débuté en 2007, lors de l’implantation de l’E85 en France.” Source: RevenueBase Database · checked Sep 19, 2026
16	Energo	Indirect evidence	Loos, FranceHQ checked Sep 19, 2026	11-50	27 contacts →
	Indirect evidence “Valorisation of CO2/Biogas for the production of renewable energy and green chemistry.” Source: RevenueBase Database · checked Sep 19, 2026
17	SEYA	Indirect evidence	Villeurbanne, FranceHQ checked Sep 19, 2026	11-50	25 contacts →
	Indirect evidence “Le groupe Seya a pour mission de développer la production de biogaz agricole et de mettre à disposition tous les moyens nécessaires pour faciliter son déploiement.” Source: RevenueBase Database · checked Sep 19, 2026
18	Fröling France	Indirect evidence	Mundolsheim, FranceHQ checked Sep 19, 2026	51-200	22 contacts →
	Indirect evidence “From the outset Froling has specialised in the efficient use of wood as a source of energy and is a pioneer of state-of-the-art wood heating systems.” Source: RevenueBase Database · checked Sep 19, 2026
19	Energy	Partial evidence	Saint Nolff, FranceHQ checked Sep 19, 2026	11-50	19 contacts →
	Partial evidence “Energy & + est spécialisée dans la Conception, Réalisation & Exploitation de solutions énergétiques à partir de biomasse.” Source: RevenueBase Database · checked Sep 19, 2026
20	Swing Biomethane	Indirect evidence	Paris, FranceHQ checked Sep 19, 2026	11-50	18 contacts →
	Indirect evidence “SWING Biomethane is a European development company dedicated to biomethane (renewable gas produced from organic wastes and residues) which aims at developing, financing, building…” Source: RevenueBase Database · checked Sep 19, 2026
21	Vendée Energie	Indirect evidence	La Roche-sur-yon, FranceHQ checked Sep 19, 2026	11-50	18 contacts →
	Indirect evidence “Vendée Energie est une Société d’Economie Mixte (SEM) de production et de distribution d’énergies renouvelables créée par le Syndicat Départemental d’Energie et d’Equipement de la…” Source: RevenueBase Database · checked Sep 19, 2026
22	Carbonworks	Indirect evidence	Libourne, FranceHQ checked Sep 19, 2026	1-10	16 contacts →
	Indirect evidence “CarbonWorks is developing an innovative and versatile photobioreactor to unlock the industrial exploitation of microalgae.” Source: RevenueBase Database · checked Sep 19, 2026
23	Watt & Home	Indirect evidence	Tullins, FranceHQ checked Sep 19, 2026	11-50	15 contacts →
	Indirect evidence “WATT & HOME créé en 2008 est spécialiste des énergies renouvelables solaire et bois énergie.” Source: RevenueBase Database · checked Sep 19, 2026
24	MELIA	Indirect evidence	Strasbourg, FranceHQ checked Sep 19, 2026	1-10	15 contacts →
	Indirect evidence “Face au dérèglement climatique et à la dépendance aux énergies fossiles, il est urgent de réfléchir à la manière dont nous utilisons nos ressources.” Source: RevenueBase Database · checked Sep 19, 2026
25	Gazotech	Partial evidence	Nantes, FranceHQ checked Sep 19, 2026	1-10	13 contacts →
	Partial evidence “Development of technologies and projects that reduce reliance on fossil natural gas by producing low-carbon gas through the pyro-gasification of residual biomass and waste, for…” Source: RevenueBase Database · checked Sep 19, 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: biomass conversion companies. 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 biomass conversion companies.
Partial evidence: Its own public description names part of biomass conversion companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name biomass conversion companies. 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 139 biomass conversion companies based in France

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Biomass conversion companies based in France at a glance

As of Sep 19, 2026

48.0%Verified-email coverage

26.3Average contacts per company

11-50Median size (employees)

7.9%Largest-city concentration · Paris

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

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 139 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 biomass conversion 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 “biomass conversion 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 biomass conversion 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 biomass conversion 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, 1,755 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 19, 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 biomass conversion 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 biomass conversion companies are there based in France?

RevenueBase identified 139 biomass conversion 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?

AXENS, headquartered in Rueil-Malmaison, tops this list with the largest team on record.

Which city has the most biomass conversion companies?

Paris leads with 11 headquartered companies, followed by Nantes (5) and Lyon (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 1,755 verified decision-maker contacts tracked across these 139 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 19, 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.