Company lists · Data refreshed September 2026
Top 25 Net zero consulting firms based in France
RevenueBase identified 487 net zero consulting firms headquartered in France as of September 2026 and tracks 18,767 professional contacts across them, including 4,196 with verified work emails and 713 with mobile numbers. Paris is the largest hub.
This list covers net zero 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 5, 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.
The 25 largest net zero consulting firms based in France
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 12,011 | ||||
“Les activités Infrastructures Energétiques Locales d’ENGIE accompagnent les collectivités, les industries et le secteur du bâtiment sur la voie de la décarbonation.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 390 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 220 | ||||
“NEPSEN est un bureau d'études indépendant, spécialisé dans les métiers de la transition énergétique & écologique depuis 40 ans.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 208 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 155 | ||||
“Expert de la réconciliation entre économie et écologie, R3 fait basculer les entreprises vers une transition environnementale et sociétale réellement performante.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 107 | ||||
“SNECI offers expertise in Industrial Performance Improvement, Business Development & Decarbonization to our customers internationally through 450 experts around the world.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | 105 | ||||
“Aujourd’hui ARP Astrance regroupe plus de 100 collaborateurs et intervient en tant que conseil, AMO, project manager, BE environnement, écologue sur les projets en développement…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 94 | ||||
“Your Strategic Partner in the Industry Avencore is an international consulting firm specialized in the industrial sector, driven by a passionate team of 130 experts.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 89 | ||||
“ROZO - Votre partenaire pour une décarbonation réussie!” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | UtopiesPartial evidence | 81 | |||
“UTOPIES is the top French consulting firm dedicated exclusively, since its creation in 1993, to the promotion of sustainable development through consulting and think tank…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 79 | ||||
“Etamine est un bureau d’études et de conseils en performance environnementale : nous accompagnons les opérations immobilières de la programmation à l’exploitation, à l’échelle du…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | 76 | ||||
“Sami: Smart.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | 72 | ||||
“New-e, c'est la société de conseil opérationnel, spécialiste des métiers de la transition durable!” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | 72 | ||||
“Solares Bauen est un bureau d’étude fluides, thermique et environnement dans le bâtiment créée en 2005 à Strasbourg.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | 63 | ||||
“Our mission : Aktio supports companies in their low-carbon transition, with our carbon footprint platform, our expertise and our network of partners to reduce emissions.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 62 | ||||
“ERESE | Groupe SCET HTC est un bureau d’études spécialisé dans les énergies, les réseaux et l’environnement.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | 54 | ||||
“Et si l’énergie que vous perdez aujourd’hui devenait votre plus grand levier de compétitivité?” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | 54 | ||||
“Créée en 2016, Optima Énergie est un cabinet de #conseil en #énergie basé en #Bretagne.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | ImagreenIndirect evidence | 51 | |||
“Imagreen est une société de conseil, partenaire expert des acteurs publics et privés.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | 48 | ||||
“Des Enjeux et Des Homme est un cabinet spécialisé dans la transformation des entreprises et organisations vers des écosystèmes soutenables et résilients.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | 46 | ||||
“Créé en 2008, O2m est un cabinet d'études indépendant spécialisé dans l’accélération des projets de transition écologique et de performance durable des entreprises et…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | 40 | ||||
“Nous sommes fiers d'être à l'avant-garde de la régulation dans le secteur du courtage en énergie.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | 40 | ||||
“Bureau d’études spécialisé dans la maîtrise de l’énergie et les solutions de décarbonation, Akéa Énergies place son ingénierie technique au service des publics BtoB pour les aider…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | 40 | ||||
“ClimateSeed combines strategic consulting and digital platforms to help organizations design and deploy ambitious climate strategies.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 25 | 40 | ||||
“AKTEO est la société de conseil, d’ingénierie et de formation en décarbonation.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 487 net zero consulting firms based in France
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Net zero consulting firms based in France at a glance
As of Sep 5, 2026Companies by employee count
Verified emails by last verification
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 net zero 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 “net zero 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 net zero 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, 4,196 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 5, 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.
Net zero consulting firms by metro
- Net zero consulting firms in Paris118
- Net zero consulting firms in Lyon28
Frequently asked
How many net zero consulting firms are there based in France?
RevenueBase identified 487 net zero 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 net zero consulting firms?
Paris leads with 118 headquartered companies, followed by Lyon (28) and Toulouse (12).
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 4,196 verified decision-maker contacts tracked across these 487 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 5, 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.
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