Company lists · Data refreshed September 2026

Top 25 Sustainable software companies based in France

RevenueBase identified 254 sustainable software companies headquartered in France as of September 2026 and tracks 7,019 professional contacts across them, including 2,260 with verified work emails. Paris is the largest hub.

This list covers sustainable 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 29, 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 29, 2026 86% judged on-target in blind review
254Companies
7,019Contacts tracked
2,260Verified emails
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The 25 largest sustainable software companies based in France

Ranked by team size
Top 25 of 254 sustainable software companies based in France, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to sustainable 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceLa Chapelle Sur Erdre, FranceHQ checked Sep 29, 2026501-1,000543 contacts →

Indirect evidence

“Notre ambition : créer plus de performance par le numérique à impact.”

Source: RevenueBase Database · checked Sep 29, 2026
2Indirect evidenceParis, FranceHQ checked Sep 29, 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 29, 2026
3Indirect evidenceLe Bourget Du Lac, FranceHQ checked Sep 29, 202651-200300 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 29, 2026
4Partial evidenceParis, FranceHQ checked Sep 29, 202651-200183 contacts →

Partial evidence

“Sweep is the enterprise sustainability data management platform trusted by the world’s leading companies and financial institutions.”

Source: RevenueBase Database · checked Sep 29, 2026
5Partial evidenceNantes, FranceHQ checked Sep 29, 202651-200164 contacts →

Partial evidence

“Established in 2015, EVEA is a consulting firm, a software tools publisher, and a training organization.”

Source: RevenueBase Database · checked Sep 29, 2026
6Indirect evidenceParis, FranceHQ checked Sep 29, 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 29, 2026
7Indirect evidenceMarseille, FranceHQ checked Sep 29, 202651-200141 contacts →

Indirect evidence

“Des solutions digitales innovantes au service des métiers de l’environnement.”

Source: RevenueBase Database · checked Sep 29, 2026
8Partial evidenceToulouse, FranceHQ checked Sep 29, 202651-200120 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 29, 2026
9Partial evidenceParis, FranceHQ checked Sep 29, 202651-200120 contacts →

Partial evidence

“WeeFin is revolutionizing sustainable finance.”

Source: RevenueBase Database · checked Sep 29, 2026
10Indirect evidenceParis, FranceHQ checked Sep 29, 202611-50109 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
11Partial evidenceSt Romain De Colbosc, FranceHQ checked Sep 29, 202651-20082 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 29, 2026
12Indirect evidenceParis, FranceHQ checked Sep 29, 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 29, 2026
13Indirect evidenceParis, FranceHQ checked Sep 29, 202651-20076 contacts →

Indirect evidence

“Sami: Smart.”

Source: RevenueBase Database · checked Sep 29, 2026
14Indirect evidenceLyon, FranceHQ checked Sep 29, 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 29, 2026
15Partial evidenceMarseille, FranceHQ checked Sep 29, 202611-5065 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 29, 2026
16Indirect evidenceParis, FranceHQ checked Sep 29, 202651-20063 contacts →

Indirect 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 29, 2026
17Indirect evidenceParis, FranceHQ checked Sep 29, 202651-20059 contacts →

Indirect evidence

“L’industrie représente 20% des émissions de CO2.”

Source: RevenueBase Database · checked Sep 29, 2026
18Indirect evidenceParis, FranceHQ checked Sep 29, 20261,001-5,00057 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026
19Indirect evidenceStrasbourg, FranceHQ checked Sep 29, 202651-20054 contacts →

Indirect evidence

“Et si l’énergie que vous perdez aujourd’hui devenait votre plus grand levier de compétitivité?”

Source: RevenueBase Database · checked Sep 29, 2026
20Indirect evidenceParis, FranceHQ checked Sep 29, 202651-20054 contacts →

Indirect evidence

“Saaswedo offers solutions to improve the performance of companies' Digital Workplace.”

Source: RevenueBase Database · checked Sep 29, 2026
21Indirect evidenceLabège, FranceHQ checked Sep 29, 202611-5053 contacts →

Indirect evidence

“Ubigreen est un éditeur de solutions digitales permettant de mesurer et optimiser la performance technique et énergétique des bâtiments du tertiaire.”

Source: RevenueBase Database · checked Sep 29, 2026
22Indirect evidenceLyon, FranceHQ checked Sep 29, 202611-5051 contacts →

Indirect evidence

“Notre équipe accompagne les entreprises au quotidien dans leur transition grâce à : Des programmes d'accompagnement collectifs pour réaliser votre bilan carbone, accélérer votre…”

Source: RevenueBase Database · checked Sep 29, 2026
23Indirect evidenceRennes, FranceHQ checked Sep 29, 202611-5046 contacts →

Indirect evidence

“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: RevenueBase Database · checked Sep 29, 2026
24Indirect evidenceLevallois-perret, FranceHQ checked Sep 29, 202651-20041 contacts →

Indirect evidence

“Tout commence par une vision : créer un avenir durable et performant.”

Source: RevenueBase Database · checked Sep 29, 2026
25Indirect evidenceParis, FranceHQ checked Sep 29, 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 29, 2026

Showing 25 of 254 sustainable software companies based in France

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Sustainable software companies based in France at a glance

As of Sep 29, 2026
32.2%Verified-email coverage
27.6Average contacts per company
1-10Median size (employees)
20.9%Largest-city concentration · Paris
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
152
11-50
73
51-200
22
201-500
1
501-1,000
2
1,001-5,000
1
10001+
3

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 254 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 sustainable 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 “sustainable 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 sustainable 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 sustainable 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, 2,260 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 29, 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.

Sustainable software companies 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 sustainable 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 sustainable software companies are there based in France?

RevenueBase identified 254 sustainable 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?

Groupe Sigma, headquartered in La Chapelle Sur Erdre, tops this list with the largest team on record.

Which city has the most sustainable software companies?

Paris leads with 53 headquartered companies, followed by Lyon (12) 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 2,260 verified decision-maker contacts tracked across these 254 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 29, 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.