Company lists · Data refreshed September 2026
Top 25 Energy transition consulting firms based in France
RevenueBase identified 1,304 energy transition consulting firms headquartered in France as of September 2026 and tracks 46,680 professional contacts across them, including 16,737 with verified work emails. Paris is the largest hub.
This list covers energy transition 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, 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.
The 25 largest energy transition consulting firms based in France
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 12,011 contacts → | ||||
Partial evidence “Les activités Infrastructures Energétiques Locales d’ENGIE accompagnent les collectivités, les industries et le secteur du bâtiment sur la voie de la décarbonation.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 8,427 contacts → | ||||
Indirect evidence “Dalkia : ensemble, relevons le défi climatique!” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 6,190 contacts → | ||||
Partial evidence “Wavestone is a leading consulting firm operating at the intersection of business and technology.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 460 contacts → | ||||
Partial evidence “Veolia Industries Global Solutions est devenu Veolia Energie Performance depuis le 1er juin 2025.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 448 contacts → | ||||
Partial evidence “Nous sommes des femmes et des hommes engagés, qui chaque matin se lèvent avec une mission : être des acteurs clés de la transition énergétique.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 436 contacts → | ||||
Indirect evidence “Ingénierie du développement durable” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 390 contacts → | ||||
Partial evidence “Since 2009, GreenFlex has been a key partner in the energy, environmental and societal transformation of organizations, enabling them to change their trajectory towards an economy…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 365 contacts → | ||||
Partial evidence “DORIS is a leader in the provision of engineering, advisory, and project management services to the energy industry.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 336 contacts → | ||||
Strong evidence “In 17 years, GreenYellow has become a major player in the energy transition in France and abroad and a true partner of companies and communities.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 330 contacts → | ||||
Strong evidence “ENGINEERING AND CONSULTING FOR A BETTER ENERGY Sofren is an international consulting company for engineering, management and industrial strategy specialising in issues relating to…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 314 contacts → | ||||
Indirect evidence “Notre valeur ajoutée : le conseil et les services adaptés à vos besoins et à vos exigences pour vous accompagner dans vos projets de distribution et de management de l'énergie et…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 305 contacts → | ||||
Partial evidence “Depuis plus de 40 ans, MANERGY s’affirme comme une société indépendante de référence, spécialisée dans l’ingénierie et le conseil en transition énergétique et environnementale.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 294 contacts → | ||||
Partial evidence “Mews Partners is an independent consulting firm, founded in 1992, with offices in France and Germany.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 278 contacts → | ||||
Indirect evidence “Créé en 1991, reconnu comme l’un des meilleurs cabinets français spécialiste de la transformation écologique, EODD ingénieurs conseils apporte sa vision transversale et ses…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 220 contacts → | ||||
Partial evidence “NEPSEN est un bureau d'études indépendant, spécialisé dans les métiers de la transition énergétique & écologique depuis 40 ans.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 212 contacts → | ||||
Partial evidence “Beicip-Franlab is a leading Energy Consultancy and Software Editor created in the 1960's with recognized worldwide hands-on expertise.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 208 contacts → | ||||
Strong evidence “Founded by Alain Grandjean and Jean-Marc Jancovici, Carbone 4 is a leading independent consulting firm, specialized in energy transition, that offers its expertise to private or…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 207 contacts → | ||||
Partial evidence “Depuis plus de 20 ans, EX’IM s’engage dans la transition énergétique pour adapter les bâtiments (logements, entreprises, collectivités) aux enjeux de demain.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 164 contacts → | ||||
Indirect evidence “Notre mission : Grâce à notre expertise et à nos fournisseurs partenaires, nous permettons aux professionnels, collectivités et copropriétés de maîtriser leurs coûts énergétiques.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 161 contacts → | ||||
Indirect evidence “Alliance des Énergies : L’allié de vos stratégies énergétiques à 360°!” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 155 contacts → | ||||
Partial evidence “Expert de la réconciliation entre économie et écologie, R3 fait basculer les entreprises vers une transition environnementale et sociétale réellement performante.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 140 contacts → | ||||
Strong evidence “Yélé Consulting est un cabinet de conseil et d’ingénierie indépendant spécialiste de la transition énergétique et environnementale.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 125 contacts → | ||||
Partial evidence “Dans un contexte de transformations profondes, SPIE France est un acteur global des transitions énergétique, numérique et industrielle.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 107 contacts → | ||||
Indirect evidence “SNECI offers expertise in Industrial Performance Improvement, Business Development & Decarbonization to our customers internationally through 450 experts around the world.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 106 contacts → | ||||
Indirect evidence “otimo est une société de conseil en ingénierie spécialisée dans les secteurs de l'Énergie, l'Environnement et les Infrastructures.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
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: energy transition consulting firms. 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 energy transition consulting firms.
- Partial evidence
- Its own public description names part of energy transition consulting firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name energy transition consulting firms. 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 1,304 energy transition consulting firms based in France
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Energy transition consulting firms based in France at a glance
As of Sep 21, 2026Companies by employee count
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 1,304 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 energy transition consulting firms, 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 “energy transition consulting firms”. 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 energy transition consulting firms), 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 energy transition 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 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, 16,737 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.
Energy transition consulting firms by metro
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 energy transition consulting firms, 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 energy transition consulting firms are there based in France?
RevenueBase identified 1,304 energy transition 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?
Engie Solutions France, headquartered in La Garenne-Colombes, tops this list with the largest team on record.
Which city has the most energy transition consulting firms?
Paris leads with 269 headquartered companies, followed by Lyon (73) and Toulouse (37).
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 16,737 verified decision-maker contacts tracked across these 1,304 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.
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