Company lists · Data refreshed September 2026

Top 25 Carbon reduction consultants based in France

RevenueBase identified 1,152 carbon reduction consultants headquartered in France as of September 2026 and tracks 35,332 professional contacts across them, including 11,040 with verified work emails. Paris is the largest hub.

This list covers carbon reduction consultants 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
1,152Companies
35,332Contacts tracked
11,040Verified emails
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The 25 largest carbon reduction consultants based in France

Ranked by team size
Top 25 of 1,152 carbon reduction consultants 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 carbon reduction consultants: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceLa Garenne-colombes, FranceHQ checked Sep 19, 202610001+12,011 contacts →

Indirect 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 19, 2026
2Indirect evidenceSaint-andré-lez-lille, FranceHQ checked Sep 19, 202610001+8,427 contacts →

Indirect evidence

“Dalkia : ensemble, relevons le défi climatique!”

Source: RevenueBase Database · checked Sep 19, 2026
3Indirect evidenceChambéry, FranceHQ checked Sep 19, 2026201-500436 contacts →

Indirect evidence

“Ingénierie du développement durable”

Source: RevenueBase Database · checked Sep 19, 2026
4Indirect evidenceParis, FranceHQ checked Sep 19, 2026501-1,000390 contacts →

Indirect 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 19, 2026
5Indirect evidenceCréteil, FranceHQ checked Sep 19, 2026501-1,000305 contacts →

Indirect 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 19, 2026
6Indirect evidenceVilleurbanne, FranceHQ checked Sep 19, 2026201-500278 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 19, 2026
7Indirect evidenceVincennes, FranceHQ checked Sep 19, 202651-200220 contacts →

Indirect 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 19, 2026
8Partial evidenceParis, FranceHQ checked Sep 19, 202651-200208 contacts →

Partial 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 19, 2026
9Indirect evidenceVilleurbanne, FranceHQ checked Sep 19, 202651-200161 contacts →

Indirect evidence

“Alliance des Énergies : L’allié de vos stratégies énergétiques à 360°!”

Source: RevenueBase Database · checked Sep 19, 2026
10Indirect evidenceParis, FranceHQ checked Sep 19, 202651-200155 contacts →

Indirect 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 19, 2026
11Partial evidenceBoulogne-billancourt, FranceHQ checked Sep 19, 202651-200149 contacts →

Partial evidence

“Accenta aide les acteurs de l’immobilier à maîtriser leurs charges, valoriser leurs actifs et répondre aux exigences réglementaires, grâce à la performance énergie-carbone.”

Source: RevenueBase Database · checked Sep 19, 2026
12Indirect evidenceNanterre, FranceHQ checked Sep 19, 202651-200140 contacts →

Indirect evidence

“Yélé Consulting est un cabinet de conseil et d’ingénierie indépendant spécialiste de la transition énergétique et environnementale.”

Source: RevenueBase Database · checked Sep 19, 2026
13Indirect evidenceParis, FranceHQ checked Sep 19, 202611-50109 contacts →

Indirect evidence

“Eco CO2 se positionne sur le marché de l'environnement et du développement durable.”

Source: RevenueBase Database · checked Sep 19, 2026
14Indirect evidenceLevallois, FranceHQ checked Sep 19, 202651-200107 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 19, 2026
15Indirect evidenceParis, FranceHQ checked Sep 19, 202651-200105 contacts →

Indirect evidence

“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: RevenueBase Database · checked Sep 19, 2026
16Indirect evidenceParis, FranceHQ checked Sep 19, 202651-20096 contacts →

Indirect evidence

“Depuis 2008, nous accompagnons nos clients dans la triple révolution – environnementale, digitale et des usages – qui bouleverse l’immobilier.”

Source: RevenueBase Database · checked Sep 19, 2026
17Indirect evidenceFranceHQ checked Sep 19, 202651-20094 contacts →

Indirect evidence

“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: RevenueBase Database · checked Sep 19, 2026
18Partial evidenceParis, FranceHQ checked Sep 19, 202651-20093 contacts →

Partial evidence

“LGI is a European sustainable innovation consultancy delivering Innovation Strategy, Financing, Management & Communication services for public & private innovators.”

Source: RevenueBase Database · checked Sep 19, 2026
19Indirect evidenceParis, FranceHQ checked Sep 19, 202651-20089 contacts →

Indirect evidence

“ROZO - Votre partenaire pour une décarbonation réussie!”

Source: RevenueBase Database · checked Sep 19, 2026
20Indirect evidencePantin, FranceHQ checked Sep 19, 202651-20084 contacts →

Indirect evidence

“Éco Environnement – Expert en transition énergétique durable Éco Environnement accompagne entreprises et collectivités dans leur passage à l’énergie verte.”

Source: RevenueBase Database · checked Sep 19, 2026
21Indirect evidenceParis, FranceHQ checked Sep 19, 202651-20081 contacts →

Indirect evidence

“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: RevenueBase Database · checked Sep 19, 2026
22Indirect evidenceParis, FranceHQ checked Sep 19, 202651-20081 contacts →

Indirect evidence

“MÉTIGA est une entreprise à mission, engagée en faveur de la transition énergétique, environnementale et sociétale.”

Source: RevenueBase Database · checked Sep 19, 2026
23Indirect evidenceVaulx-en-velin, FranceHQ checked Sep 19, 202651-20079 contacts →

Indirect evidence

“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: RevenueBase Database · checked Sep 19, 2026
24Indirect evidenceMarseille, FranceHQ checked Sep 19, 202611-5073 contacts →

Indirect evidence

“TEREA is a professional environmental consulting company specialized in environment and sustainable management of natural resources.”

Source: RevenueBase Database · checked Sep 19, 2026
25Indirect evidenceLyon, FranceHQ checked Sep 19, 202651-20072 contacts →

Indirect evidence

“New-e, c'est la société de conseil opérationnel, spécialiste des métiers de la transition durable!”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 25 of 1,152 carbon reduction consultants based in France

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Carbon reduction consultants based in France at a glance

As of Sep 19, 2026
31.2%Verified-email coverage
30.7Average contacts per company
1-10Median size (employees)
22.0%Largest-city concentration · Paris
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
852
11-50
221
51-200
54
201-500
9
501-1,000
5
1,001-5,000
4
10001+
6

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 1,152 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 carbon reduction consultants, 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 “carbon reduction consultants”. 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 carbon reduction consultants), 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 carbon reduction consultants, 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, 11,040 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 carbon reduction consultants, 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 carbon reduction consultants are there based in France?

RevenueBase identified 1,152 carbon reduction consultants 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 carbon reduction consultants?

Paris leads with 254 headquartered companies, followed by Lyon (57) and Toulouse (36).

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 11,040 verified decision-maker contacts tracked across these 1,152 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.