Company lists · Data refreshed September 2026

Top 21 Hydrogen consulting firms based in France

Name: Hydrogen consulting firms based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 3, 2026 58 companies tracked

RevenueBase identified 58 hydrogen consulting firms headquartered in France as of September 2026 and tracks 1,088 professional contacts across them, including 460 with verified work emails and 31 with mobile numbers. Paris is the largest hub.

This list covers hydrogen consulting firms 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, how directly it supports the match, and when it was last checked. Data refreshed September 3, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 Match evidence on every row Refreshed Sep 3, 2026 86% judged on-target in blind review

58Companies

1,088Contacts tracked

460Verified emails

31Mobile numbers

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The 21 largest hydrogen consulting firms based in France

Ranked by team size

Top 21 of 58 hydrogen consulting firms based in France, ranked by team size, largest first. Data refreshed Sep 3, 2026. Evidence rates how directly each company's own description names hydrogen consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Beicip-FranlabIndirect evidence	Rueil-Malmaison, FranceHQ checked Sep 3, 2026	51-200	212
	“Beicip-Franlab is a leading Energy Consultancy and Software Editor created in the 1960's with recognized worldwide hands-on expertise.” Source: company website · checked Sep 3, 2026
2	LHYFEIndirect evidence	Nantes, FranceHQ checked Sep 3, 2026	51-200	209
	“Lhyfe is a certain idea of the world, a world in which we can meet our energy needs by being part of the natural ecosystem rather than trying to dominate it.” Source: company website · checked Sep 3, 2026
3	HynamicsPartial evidence	Paris, FranceHQ checked Sep 3, 2026	51-200	129
	“Hynamics est la filiale 100% du groupe EDF qui produit et commercialise de l'hydrogène bas carbone; elle adresse les deux marchés les plus émetteurs de CO2 que sont l’industrie et…” Source: company website · checked Sep 3, 2026
4	Sofregaz SASIndirect evidence	Puteaux, FranceHQ checked Sep 3, 2026	51-200	121
	“SOFREGAZ is a leading independent engineering company, created in 1959 by Gaz de France, with over 1300 projects across 95 countries.” Source: company website · checked Sep 3, 2026
5	Hy24Partial evidence	Paris, FranceHQ checked Sep 3, 2026	11-50	49
	“Our company was born in 2021 from the combination of Ardian, one of the world's leading private equity firms, and FiveT Hydrogen, a hydrogen focused investment platform.” Source: company website · checked Sep 3, 2026
6	HydrogainPartial evidence	Lyon, FranceHQ checked Sep 3, 2026	11-50	32
	“HydroGain is an engineering company and a training organization, born in Lyon at the heart of the Rhône-Alpes hydrogen ecosystem.” Source: company website · checked Sep 3, 2026
7	CAP Terre Betom GroupIndirect evidence	Velizy-Villacoublay, FranceHQ checked Sep 3, 2026	11-50	29
	“Bureau d'études et de conseil en Environnement, Durabilité et Energie” Source: company website · checked Sep 3, 2026
8	H2gremmPartial evidence	Edern, FranceHQ checked Sep 3, 2026	11-50	23
	“H2Gremm redefines the future of energy by placing hydrogen at the heart of sustainable mobility and energy autonomy for buildings.” Source: company website · checked Sep 3, 2026
9	DeftlineIndirect evidence	Cherbourg, FranceHQ checked Sep 3, 2026	51-200	20
	“DEFTLINE est un groupe d’ingénierie, de conseil et de services.” Source: company website · checked Sep 3, 2026
10	H2pulsePartial evidence	Toulouse Cedex 09, FranceHQ checked Sep 3, 2026	11-50	16
	“En association avec la Plateforme Hydrogène, Toulouse et le laboratoire Laplace, H2PULSE accélère le transfert du savoir-faire & des résultats de la recherche vers le monde de…” Source: company website · checked Sep 3, 2026
11	HyjackIndirect evidence	Paris, FranceHQ checked Sep 3, 2026	1-10	7
	“HyJack is a young start-up created in the early 2021.” Source: company website · checked Sep 3, 2026
12	H2team Hydrogen EngineeringPartial evidence	Albi, FranceHQ checked Sep 3, 2026	1-10	5
	“Créé en 2009, H2TEAM est un bureau d’études qui contribue au développement et à la sécurité de solutions hydrogène sur l’ensemble de sa chaine de valeur grâce à des expertises…” Source: company website · checked Sep 3, 2026
13	Ah2d EnvironnementPartial evidence	Montreuil, FranceHQ checked Sep 3, 2026	1-10	3
	“AH2D ENVIRONNEMENT est un bureau d'études spécialisé en hydrogéologie” Source: company website · checked Sep 3, 2026
14	BCO Conseil Conseil EN EnergiesIndirect evidence	Saint-Dizier, FranceHQ checked Sep 3, 2026	11-50	2
	“BCO CONSEIL est un Cabinet de conseil stratégique indépendant en stratégie industrielle et transition énergétique.” Source: company website · checked Sep 3, 2026
15	Tahuri EnergiesIndirect evidence	Paris, FranceHQ checked Sep 3, 2026	1-10	2
	“Thanks to our experience in the energy sector, at Tahuri Energies we offer our clients innovative solutions, adapted to their needs and their projects, in areas such as green…” Source: company website · checked Sep 3, 2026
16	TR EnergiesIndirect evidence	Île-d'arz, FranceHQ checked Sep 3, 2026	1-10	2
	“TR Energies assists in the maturation of projects upstream or downstream of the financing and acquisition phase and throughout the life of the project, from development to…” Source: company website · checked Sep 3, 2026
17	SiccogenIndirect evidence	Paris, FranceHQ checked Sep 3, 2026	1-10	2
	“Société d'Ingénierie, Conseil, Constructions, Gestion de projets en nouvelles énergies et Formation en maintenance d'installations solaires, éoliennes, en ingénierie de projets…” Source: company website · checked Sep 3, 2026
18	Actemium Paris Solutions HydrogènePartial evidence	Paris, FranceHQ checked Sep 3, 2026	11-50	1
	“Actemium Paris Solutions Hydrogène est une filiale de Vinci Energies spécialisée dans les procédés d'hydrogène et ses applications.” Source: company website · checked Sep 3, 2026
19	Greenvision ConsultingStrong evidence	Marseille, FranceHQ checked Sep 3, 2026	1-10	1
	“At Greenvision Consulting, we empower stakeholders across the green hydrogen value chain with strategic insights, technical expertise, and market intelligence.” Source: company website · checked Sep 3, 2026
20	Hy-PlugIndirect evidence	Six Fours Les Plages, FranceHQ checked Sep 3, 2026	1-10	1
	“HY-Plug est un bureau d'étude pour la transition énergétique maritime.” Source: company website · checked Sep 3, 2026
21	JUSTYIndirect evidence	Dijon, FranceHQ checked Sep 3, 2026	1-10	1
	Source: company website · checked Sep 3, 2026

Showing 21 of 58 hydrogen consulting firms based in France

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Hydrogen consulting firms based in France at a glance

As of Sep 3, 2026

1-10Median size (employees)

ParisLargest hub · 12 HQs

31Contacts with mobile numbers

Sep 3, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

Verified emails by last verification

0–30

31–60

61–90

256

90–180

172

180+

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 hydrogen consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in France whose own description of what they do matches “hydrogen consulting firms”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among hydrogen consulting firms, 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 an evidence 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, 460 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 3, 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

How many hydrogen consulting firms are there based in France?

RevenueBase identified 58 hydrogen consulting firms 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?

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

Which city has the most hydrogen consulting firms?

Paris leads with 12 headquartered companies, followed by Lyon (3) and Nantes (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 460 verified decision-maker contacts tracked across these 58 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 3, 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 SmartSearch, 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.