Company lists · Data refreshed September 2026

Top 25 Carbon offset consultancies based in France

RevenueBase identified 213 carbon offset consultancies headquartered in France as of September 2026 and tracks 1,294 professional contacts across them, including 524 with verified work emails. Paris is the largest hub.

This list covers carbon offset consultancies 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 27, 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 27, 2026 86% judged on-target in blind review
213Companies
1,294Contacts tracked
524Verified emails
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The 25 largest carbon offset consultancies based in France

Ranked by team size
Top 25 of 213 carbon offset consultancies based in France, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to carbon offset consultancies: 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 evidenceParis, FranceHQ checked Sep 27, 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 27, 2026
2Indirect evidenceParis, FranceHQ checked Sep 27, 202651-20076 contacts →

Indirect evidence

“Sami: Smart.”

Source: RevenueBase Database · checked Sep 27, 2026
3Indirect evidenceLyon, FranceHQ checked Sep 27, 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 27, 2026
4Partial evidenceParis, FranceHQ checked Sep 27, 202651-20063 contacts →

Partial evidence

“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: RevenueBase Database · checked Sep 27, 2026
5Strong evidenceParis, FranceHQ checked Sep 27, 202611-5044 contacts →

Strong evidence

“Removall is a project developer designing and operating certified, high-integrity and high-impact carbon offset projects that contribute to achieving the Net Zero objective.”

Source: RevenueBase Database · checked Sep 27, 2026
6Indirect evidencePoitiers, FranceHQ checked Sep 27, 202651-20040 contacts →

Indirect evidence

“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: RevenueBase Database · checked Sep 27, 2026
7Indirect evidenceParis, FranceHQ checked Sep 27, 202611-5040 contacts →

Indirect evidence

“ClimateSeed combines strategic consulting and digital platforms to help organizations design and deploy ambitious climate strategies.”

Source: RevenueBase Database · checked Sep 27, 2026
8Indirect evidenceParis, FranceHQ checked Sep 27, 202611-5040 contacts →

Indirect evidence

“AKTEO est la société de conseil, d’ingénierie et de formation en décarbonation.”

Source: RevenueBase Database · checked Sep 27, 2026
9Partial evidenceNantes, FranceHQ checked Sep 27, 202611-5028 contacts →

Partial evidence

“OKSIGEN est une société spécialisée en Maîtrise de l'Energie, nous accompagnons nos clients professionnels sur 3 thématiques - Stratégie bas carbone *- Stratégie d'efficacité…”

Source: RevenueBase Database · checked Sep 27, 2026
10Indirect evidenceVilleneuve-d’ascq, FranceHQ checked Sep 27, 202611-5028 contacts →

Indirect evidence

“HALTIVE est une société de conseil en ingénierie passionnée par les défis sociétaux et environnementaux.”

Source: RevenueBase Database · checked Sep 27, 2026
11Indirect evidenceParis, FranceHQ checked Sep 27, 202611-5022 contacts →

Indirect evidence

“We accompany companies along the whole net-zero journey.”

Source: RevenueBase Database · checked Sep 27, 2026
12Indirect evidenceNantes, FranceHQ checked Sep 27, 202611-5019 contacts →

Indirect evidence

“Repair the Earth”

Source: RevenueBase Database · checked Sep 27, 2026
13Indirect evidenceToulon, FranceHQ checked Sep 27, 202611-5018 contacts →

Indirect evidence

“EVEN accompagne les territoires dans leurs transitions d'adaptation et d'atténuation face au dérèglement climatique à travers des projets au moindre impact environnemental”

Source: RevenueBase Database · checked Sep 27, 2026
14Partial evidenceParis, FranceHQ checked Sep 27, 202611-5015 contacts →

Partial evidence

“ECO2 active les leviers de la transition énergétique et de la performance globale : évaluations environnementales & RSE (audits et bilans carbone, GES, énergie, impacts.) conseils…”

Source: RevenueBase Database · checked Sep 27, 2026
15Indirect evidenceParis, FranceHQ checked Sep 27, 20261-1012 contacts →

Indirect evidence

“Kallpa Energie Solutions est une société de conseil et d'ingénierie spécialisée dans la performance énergétique.”

Source: RevenueBase Database · checked Sep 27, 2026
16Partial evidenceParis, FranceHQ checked Sep 27, 202611-5011 contacts →

Partial evidence

“Inuk empowers businesses and individuals to reduce their carbon emissions and contribute to carbon neutrality.”

Source: RevenueBase Database · checked Sep 27, 2026
17Partial evidenceAnnecy, FranceHQ checked Sep 27, 20261-1010 contacts →

Partial evidence

“VERACY accompagne les entreprises dans leurs démarches environnementales - En quantifiant l'impact des activités de l'entreprise grâce à un Bilan Carbone® ou des Analyses de Cycle…”

Source: RevenueBase Database · checked Sep 27, 2026
18Indirect evidenceSaint-joseph-de-rivière, FranceHQ checked Sep 27, 20261-1010 contacts →

Indirect evidence

“TranSyLience est un cabinet de conseils à échelle humaine dédié à la mise en œuvre d’outils de conduite de la transition à destination des entreprises, associations et…”

Source: RevenueBase Database · checked Sep 27, 2026
19Partial evidenceLille & Paris, FranceHQ checked Sep 27, 202611-509 contacts →

Partial evidence

“At Releaf Carbon, we help companies of all sizes work towards a low-carbon transition for a sustainable future.”

Source: RevenueBase Database · checked Sep 27, 2026
20Indirect evidenceParis, FranceHQ checked Sep 27, 20261-108 contacts →

Indirect evidence

“Chez AEGILIM, nous croyons que l’immobilier durable est la clé pour conjuguer impact positif et création de valeur.”

Source: RevenueBase Database · checked Sep 27, 2026
21Indirect evidenceLyon, FranceHQ checked Sep 27, 20261-108 contacts →

Indirect evidence

“Kapstan est un bureau d’études et de conseil en études environnementales.”

Source: RevenueBase Database · checked Sep 27, 2026
22Indirect evidenceQuimper, FranceHQ checked Sep 27, 202611-508 contacts →

Indirect evidence

“We can only improve what we measure.”

Source: RevenueBase Database · checked Sep 27, 2026
23Indirect evidenceCourbevoie, FranceHQ checked Sep 27, 202611-508 contacts →

Indirect evidence

“Bureau d’études intégré, Adeena Industrie accompagne les industriels dans le diagnostic, la réduction des consommations d’énergie et la décarbonation de leurs sites grâce à une…”

Source: RevenueBase Database · checked Sep 27, 2026
24Partial evidence122 Faubourg Mache, FranceHQ checked Sep 27, 20261-108 contacts →

Partial evidence

“We founded róng yì solutions in 2020 to help clients identify and tackle climate risks, embrace circularity opportunities, and lead transformation of value chains to low carbon.”

Source: RevenueBase Database · checked Sep 27, 2026
25Indirect evidenceToulouse, FranceHQ checked Sep 27, 20261-108 contacts →

Indirect evidence

“La mission de l’Effet de Faire : Comprendre vos enjeux, vous aider à réaliser la décarbonation des activités et accompagner l’évolution des mentalités dans votre entreprise …”

Source: RevenueBase Database · checked Sep 27, 2026

Showing 25 of 213 carbon offset consultancies based in France

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Carbon offset consultancies based in France at a glance

As of Sep 27, 2026
40.5%Verified-email coverage
6.1Average contacts per company
1-10Median size (employees)
24.9%Largest-city concentration · Paris
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
174
11-50
29
51-200
8
201-500
1

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 213 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 offset consultancies, 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 offset consultancies”. 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 offset consultancies), 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 offset consultancies, 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, 524 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 27, 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 offset consultancies, 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 offset consultancies are there based in France?

RevenueBase identified 213 carbon offset consultancies 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?

R3, headquartered in Paris, tops this list with the largest team on record.

Which city has the most carbon offset consultancies?

Paris leads with 53 headquartered companies, followed by Lyon (14) and Nantes (9).

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 524 verified decision-maker contacts tracked across these 213 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 27, 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.