Company lists · Data refreshed September 2026

Top 25 Custom biomass energy companies based in France

Name: Custom biomass energy companies based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 234 companies tracked

RevenueBase identified 234 custom biomass energy companies headquartered in France as of September 2026 and tracks 2,025 professional contacts across them, including 504 with verified work emails. Paris is the largest hub.

This list covers custom biomass energy 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 21, 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 21, 2026 86% judged on-target in blind review

234Companies

2,025Contacts tracked

504Verified emails

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The 25 largest custom biomass energy companies based in France

Ranked by team size

Top 25 of 234 custom biomass energy companies based in France, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to custom biomass energy 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	Leroux & Lotz Technologies LLT	Partial evidence	Nantes, FranceHQ checked Sep 21, 2026	51-200	118 contacts →
	Partial evidence “Leroux & Lotz Technologies, a recognised expert in industrial boilers and combustion systems, offers tailor-made solutions for all types of biomass, cogeneration and incineration…” Source: RevenueBase Database · checked Sep 21, 2026
2	Évole Énergies	Strong evidence	Baume-les-dames, FranceHQ checked Sep 21, 2026	201-500	82 contacts →
	Strong evidence “The évole énergies group provides its professional and residential customers with a multi-energy offering, ranging from petroleum products and biofuels to electricity and wood…” Source: RevenueBase Database · checked Sep 21, 2026
3	Hargassner France	Partial evidence	Lavilledieu, FranceHQ checked Sep 21, 2026	51-200	74 contacts →
	Partial 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 21, 2026
4	Compte.R	Strong evidence	Arlanc, FranceHQ checked Sep 21, 2026	51-200	74 contacts →
	Strong 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 21, 2026
5	Haffner Energy	Strong evidence	Vitry-le-françois, FranceHQ checked Sep 21, 2026	11-50	60 contacts →
	Strong 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 21, 2026
6	Weiss France Energie	Strong evidence	Ugine, FranceHQ checked Sep 21, 2026	51-200	46 contacts →
	Strong 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 21, 2026
7	Laudevco SAS	Partial evidence	Barraux, FranceHQ checked Sep 21, 2026	11-50	25 contacts →
	Partial evidence “Laudevco distribue des solutions de chauffage biomasse (bois & granulés) auprès des professionnels sur le territoire Français.” Source: RevenueBase Database · checked Sep 21, 2026
8	Fröling France	Partial evidence	Mundolsheim, FranceHQ checked Sep 21, 2026	51-200	22 contacts →
	Partial 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 21, 2026
9	Energy	Strong evidence	Saint Nolff, FranceHQ checked Sep 21, 2026	11-50	19 contacts →
	Strong evidence “Energy & + est spécialisée dans la Conception, Réalisation & Exploitation de solutions énergétiques à partir de biomasse.” Source: RevenueBase Database · checked Sep 21, 2026
10	Thermoneo Énergies	Partial evidence	Saint-élix-le-chateau, FranceHQ checked Sep 21, 2026	11-50	17 contacts →
	Partial evidence “THERMONEO Energies est une société artisanale et familiale spécialisée en énergies renouvelables : pompes à chaleur, solaire, poêles et chaudières à granulés, climatisation…” Source: RevenueBase Database · checked Sep 21, 2026
11	Thorens-Energies	Indirect evidence	Fillinges, FranceHQ checked Sep 21, 2026	11-50	16 contacts →
	Indirect evidence “Thorens Énergies : l’énergie renouvelable au service d’un avenir durable.” Source: RevenueBase Database · checked Sep 21, 2026
12	Watt & Home	Indirect evidence	Tullins, FranceHQ checked Sep 21, 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 21, 2026
13	MELIA	Indirect evidence	Strasbourg, FranceHQ checked Sep 21, 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 21, 2026
14	Leprêtre Energies	Indirect evidence	Dainville, FranceHQ checked Sep 21, 2026	11-50	15 contacts →
	Indirect evidence “Depuis 2002, nous sommes spécialisés dans la vente, le dépannage et l’installation de systèmes de chauffage toutes énergies.” Source: RevenueBase Database · checked Sep 21, 2026
15	Groupe Bordet	Indirect evidence	Leuglay, FranceHQ checked Sep 21, 2026	11-50	12 contacts →
	Indirect evidence “Bordet is a referenced industrial in carbonization.” Source: RevenueBase Database · checked Sep 21, 2026
16	Conviflamme Devenu VIK Energies	Indirect evidence	Fleury Sur Orne, FranceHQ checked Sep 21, 2026	11-50	11 contacts →
	Indirect evidence “Avec trois agences normandes situées à Caen, Evreux et Rouen, nous vous proposons notre expertise depuis de nombreuses années.” Source: RevenueBase Database · checked Sep 21, 2026
17	Energeco SAS	Partial evidence	Bas En Basset, FranceHQ checked Sep 21, 2026	11-50	11 contacts →
	Partial evidence “Installateur conseil Chauffage Plomberie Sanitaire Climatisation Ventilation Energies Renouvelables Intervention Loire & Haute Loire Le secteur des Energies Renouvelables est…” Source: RevenueBase Database · checked Sep 21, 2026
18	ETS Negre SA	Indirect evidence	Rosny Sous Bois, FranceHQ checked Sep 21, 2026	51-200	10 contacts →
	Indirect evidence “Depuis 1905, nous vous proposons un service d'installation et maintenance de systèmes de chauffage énergies renouvelables pompe à chaleur, bois granulés, gaz naturel ou solaire…” Source: RevenueBase Database · checked Sep 21, 2026
19	Ragt Energie	Strong evidence	Albi, FranceHQ checked Sep 21, 2026	1-10	10 contacts →
	Strong evidence “RAGT Energie is an expert company in the field of biomass and waste-to-energy conversion, with 4 activities- Engineering in the pre-treatment (mechanical and thermal) and energy…” Source: RevenueBase Database · checked Sep 21, 2026
20	Helio Energie	Partial evidence	Buchelay, FranceHQ checked Sep 21, 2026	11-50	10 contacts →
	Partial evidence “Le métier d'Helio energie : le chauffage et les énergies renouvelables entretien / installation / dépannage => chauffage gaz / bois / solaire => bureau d'étude solaire => solaire…” Source: RevenueBase Database · checked Sep 21, 2026
21	Azur Système Solaire	Indirect evidence	Grasse, FranceHQ checked Sep 21, 2026	1-10	10 contacts →
	Indirect evidence “Azur Système Solaire est spécialisée dans le conseil et l'implémentation de solutions énergétiques durables, globales et évolutives pour tous les bâtiments (habitations…” Source: RevenueBase Database · checked Sep 21, 2026
22	INOE	Partial evidence	Orgeval, FranceHQ checked Sep 21, 2026	11-50	9 contacts →
	Partial evidence “Acteur Francilien de la production de combustibles biomasse - bois énergie indépendant.” Source: RevenueBase Database · checked Sep 21, 2026
23	Sbthermique	Partial evidence	Villemoirieu, FranceHQ checked Sep 21, 2026	11-50	9 contacts →
	Partial evidence “SBThermique est votre partenaire privilégié pour l'étude, la conception et la commercialisation de chaufferies biomasse HERZ® de 10 à 1500 kW (et plus en cascade).” Source: RevenueBase Database · checked Sep 21, 2026
24	Européenne DE Biomasse	Partial evidence	Paris, FranceHQ checked Sep 21, 2026	11-50	8 contacts →
	Partial evidence “Européenne de Biomasse (EDB) is a French biogenic carbon technology and development company.” Source: RevenueBase Database · checked Sep 21, 2026
25	Picardie Biomasse Energie	Strong evidence	Estrees-deniecourt, FranceHQ checked Sep 21, 2026	51-200	8 contacts →
	Strong evidence “Picardie Biomasse Energie exploite deux unités de cogénération alimentées en biomasse dans la Somme (80) à Nesle et Estrées-Mons.” Source: RevenueBase Database · checked Sep 21, 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: custom biomass energy 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 custom biomass energy companies.
Partial evidence: Its own public description names part of custom biomass energy companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name custom biomass energy 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 234 custom biomass energy companies based in France

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Custom biomass energy companies based in France at a glance

As of Sep 21, 2026

24.9%Verified-email coverage

8.7Average contacts per company

1-10Median size (employees)

3.0%Largest-city concentration · Paris

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

134

11-50

51-200

201-500

501-1,000

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 234 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 custom biomass energy 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 “custom biomass energy 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 custom biomass energy 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 custom biomass energy 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, 504 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 21, 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 custom biomass energy 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 custom biomass energy companies are there based in France?

RevenueBase identified 234 custom biomass energy 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?

Leroux & Lotz Technologies LLT, headquartered in Nantes, tops this list with the largest team on record.

Which city has the most custom biomass energy companies?

Paris leads with 7 headquartered companies, followed by Chambery (3) and Villeurbanne (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 504 verified decision-maker contacts tracked across these 234 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 21, 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.