Company lists · Data refreshed September 2026

Top 25 Carbon neutral software companies based in France

Name: Carbon neutral software companies based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 14, 2026 273 companies tracked

RevenueBase identified 273 carbon neutral software companies headquartered in France as of September 2026 and tracks 26,294 professional contacts across them, including 9,404 with verified work emails. Paris is the largest hub.

This list covers carbon neutral software companies 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 14, 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 14, 2026 86% judged on-target in blind review

273Companies

26,294Contacts tracked

9,404Verified emails

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The 25 largest carbon neutral software companies based in France

Ranked by team size

Top 25 of 273 carbon neutral software companies based in France, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to carbon neutral software companies: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Engie Solutions France	Indirect evidence	La Garenne-colombes, FranceHQ checked Sep 14, 2026	10001+	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 14, 2026
2	Dalkia	Indirect evidence	Saint-andré-lez-lille, FranceHQ checked Sep 14, 2026	10001+	8,427 contacts →
	Indirect evidence “Dalkia : ensemble, relevons le défi climatique!” Source: RevenueBase Database · checked Sep 14, 2026
3	Deepki	Indirect evidence	Paris, FranceHQ checked Sep 14, 2026	201-500	441 contacts →
	Indirect evidence “Deepki is the most trusted sustainability solution for real estate.” Source: RevenueBase Database · checked Sep 14, 2026
4	Greenflex	Indirect evidence	Paris, FranceHQ checked Sep 14, 2026	501-1,000	390 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 14, 2026
5	Energy Pool	Indirect evidence	Le Bourget Du Lac, FranceHQ checked Sep 14, 2026	51-200	300 contacts →
	Indirect evidence “At the centre of the smart grid revolution, Energy Pool manages and optimizes complex systems (energy consumption of industrial sites, decentralized production, renewable…” Source: RevenueBase Database · checked Sep 14, 2026
6	SWEEP	Indirect evidence	Paris, FranceHQ checked Sep 14, 2026	51-200	183 contacts →
	Indirect evidence “Sweep is the enterprise sustainability data management platform trusted by the world’s leading companies and financial institutions.” Source: RevenueBase Database · checked Sep 14, 2026
7	Citron	Indirect evidence	Suresnes, FranceHQ checked Sep 14, 2026	51-200	165 contacts →
	Indirect evidence “Citron® est une protech qui digitalise la gestion énergétique des entreprises, collectivités et bailleurs.” Source: RevenueBase Database · checked Sep 14, 2026
8	EVEA	Partial evidence	Nantes, FranceHQ checked Sep 14, 2026	51-200	164 contacts →
	Partial evidence “Established in 2015, EVEA is a consulting firm, a software tools publisher, and a training organization.” Source: RevenueBase Database · checked Sep 14, 2026
9	R3	Indirect evidence	Paris, FranceHQ checked Sep 14, 2026	51-200	155 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 14, 2026
10	Advizeo	Indirect evidence	Paris, FranceHQ checked Sep 14, 2026	51-200	149 contacts →
	Indirect evidence “advizeo supports companies and local authorities in reducing the energy consumption of their buildings.” Source: RevenueBase Database · checked Sep 14, 2026
11	accenta.ai	Partial evidence	Boulogne-billancourt, FranceHQ checked Sep 14, 2026	51-200	149 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 14, 2026
12	SOMEI	Indirect evidence	Marseille, FranceHQ checked Sep 14, 2026	51-200	141 contacts →
	Indirect evidence “Des solutions digitales innovantes au service des métiers de l’environnement.” Source: RevenueBase Database · checked Sep 14, 2026
13	Openairlines	Partial evidence	Toulouse, FranceHQ checked Sep 14, 2026	51-200	120 contacts →
	Partial evidence “OpenAirlines is an international software company based in Toulouse, with offices in Hong Kong, Montreal and Miami.” Source: RevenueBase Database · checked Sep 14, 2026
14	Weefin	Indirect evidence	Paris, FranceHQ checked Sep 14, 2026	51-200	120 contacts →
	Indirect evidence “WeeFin is revolutionizing sustainable finance.” Source: RevenueBase Database · checked Sep 14, 2026
15	ECO Co2	Indirect evidence	Paris, FranceHQ checked Sep 14, 2026	11-50	109 contacts →
	Indirect evidence “Eco CO2 se positionne sur le marché de l'environnement et du développement durable.” Source: RevenueBase Database · checked Sep 14, 2026
16	Carbonable	Partial evidence	Grenoble - Paris, FranceHQ checked Sep 14, 2026	11-50	91 contacts →
	Partial evidence “Carbonable’s platform enables organizations to drive intelligent, scalable, and trustworthy climate contributions.” Source: RevenueBase Database · checked Sep 14, 2026
17	ROZO	Indirect evidence	Paris, FranceHQ checked Sep 14, 2026	51-200	89 contacts →
	Indirect evidence “ROZO - Votre partenaire pour une décarbonation réussie!” Source: RevenueBase Database · checked Sep 14, 2026
18	Trace Software	Partial evidence	St Romain De Colbosc, FranceHQ checked Sep 14, 2026	51-200	82 contacts →
	Partial evidence “At the heart of innovation in network sizing and energy efficiency, Trace Software is positioned as an undisputed leader in the development of software for building and energy…” Source: RevenueBase Database · checked Sep 14, 2026
19	SAMI	Indirect evidence	Paris, FranceHQ checked Sep 14, 2026	51-200	76 contacts →
	Indirect evidence “Sami: Smart.” Source: RevenueBase Database · checked Sep 14, 2026
20	Natural Solutions	Partial evidence	Marseille, FranceHQ checked Sep 14, 2026	11-50	65 contacts →
	Partial evidence “Natural Solution is an innovative company trying to bridge the cultural gap that divides environmental scientists and software engineers.” Source: RevenueBase Database · checked Sep 14, 2026
21	Co2 AI	Indirect evidence	Paris, FranceHQ checked Sep 14, 2026	51-200	63 contacts →
	Indirect evidence “CO2 AI helps large and complex organizations measure their environmental impact, identify credible levers, and decarbonize at scale, leveraging the power of AI.” Source: RevenueBase Database · checked Sep 14, 2026
22	Aktio Apave Group	Partial evidence	Paris, FranceHQ checked Sep 14, 2026	51-200	63 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 14, 2026
23	Efficacity	Indirect evidence	Champs-sur-marne, FranceHQ checked Sep 14, 2026	51-200	60 contacts →
	Indirect evidence “Depuis sa création en 2014, la raison d'être d'Efficacity est d’apporter aux acteurs de terrain de nouveaux outils, méthodes et solutions opérationnelles qui leur permettront…” Source: RevenueBase Database · checked Sep 14, 2026
24	Dametis	Indirect evidence	Paris, FranceHQ checked Sep 14, 2026	51-200	59 contacts →
	Indirect evidence “L’industrie représente 20% des émissions de CO2.” Source: RevenueBase Database · checked Sep 14, 2026
25	Vizcab	Partial evidence	Lyon, FranceHQ checked Sep 14, 2026	51-200	58 contacts →
	Partial evidence “Vizcab is the French tech company leading the way towards net-zero carbon in the construction industry, thanks to easy-to-use carbon assessment solutions for the entire…” Source: RevenueBase Database · checked Sep 14, 2026

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: carbon neutral software companies. 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 carbon neutral software companies.
Partial evidence: Its own public description names part of carbon neutral software companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name carbon neutral software companies. 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 273 carbon neutral software companies based in France

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Carbon neutral software companies based in France at a glance

As of Sep 14, 2026

35.8%Verified-email coverage

96.3Average contacts per company

1-10Median size (employees)

28.6%Largest-city concentration · Paris

Sep 14, 2026Page data refreshed

Companies by employee count

1-10

153

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

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 273 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 neutral software companies, 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 neutral software companies”. 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 neutral software companies), 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 neutral software companies, 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, 9,404 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 14, 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.

Carbon neutral software companies by metro

Carbon neutral software companies in Paris78

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 neutral software companies, 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 neutral software companies are there based in France?

RevenueBase identified 273 carbon neutral software companies 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 neutral software companies?

Paris leads with 78 headquartered companies, followed by Lyon (13) and Nantes (7).

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 9,404 verified decision-maker contacts tracked across these 273 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 14, 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.