Company lists · Data refreshed September 2026

Top 25 Sustainable IT consulting firms based in France

Name: Sustainable IT consulting firms based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 6, 2026 1,011 companies tracked

RevenueBase identified 1,011 sustainable IT consulting firms headquartered in France as of September 2026 and tracks 17,215 professional contacts across them, including 7,294 with verified work emails and 996 with mobile numbers. Paris is the largest hub.

This list covers sustainable IT 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 6, 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 6, 2026 86% judged on-target in blind review

1,011Companies

17,215Contacts tracked

7,294Verified emails

996Mobile numbers

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The 25 largest sustainable IT consulting firms based in France

Ranked by team size

Top 25 of 1,011 sustainable IT consulting firms based in France, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to sustainable IT consulting firms: 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	Wavestone	Partial evidence	100-101 Terrasse Boieldieu, FranceHQ checked Sep 6, 2026	1,001-5,000	6,190 contacts →
	“Wavestone is a leading consulting firm operating at the intersection of business and technology.” Source: company website · checked Sep 6, 2026
2	Greenflex	Indirect evidence	Paris, FranceHQ checked Sep 6, 2026	501-1,000	390 contacts →
	“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 6, 2026
3	Eodd Ingénieurs Conseils	Indirect evidence	Villeurbanne, FranceHQ checked Sep 6, 2026	201-500	278 contacts →
	“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: company website · checked Sep 6, 2026
4	KEA & Partners	Partial evidence	Malakoff, FranceHQ checked Sep 6, 2026	201-500	254 contacts →
	“Kea & Partners is the first European strategy consulting firm "Entreprise à Mission", as defined by the Pacte law, and a member of the B Corp community.” Source: company website · checked Sep 6, 2026
5	Ginini Antipode	Indirect evidence	Courbevoie, FranceHQ checked Sep 6, 2026	201-500	231 contacts →
	“Ginesis Finance est le partenaire privilégié des Directions Financières des grandes entreprises publiques et cotées du CAC 40 / SBF 120, du renfort opérationnel aux projets de…” Source: company website · checked Sep 6, 2026
6	Nepsen	Indirect evidence	Vincennes, FranceHQ checked Sep 6, 2026	51-200	220 contacts →
	“NEPSEN est un bureau d'études indépendant, spécialisé dans les métiers de la transition énergétique & écologique depuis 40 ans.” Source: company website · checked Sep 6, 2026
7	A2 Consulting	Partial evidence	Paris, FranceHQ checked Sep 6, 2026	51-200	185 contacts →
	“A2 Consulting est un cabinet de conseil en organisation et management multi-spécialiste et totalement indépendant créé en A2 Consulting s'engage auprès des entreprises pour…” Source: company website · checked Sep 6, 2026
8	Myconnecting	Partial evidence	Boulogne-billancourt, FranceHQ checked Sep 6, 2026	201-500	179 contacts →
	“As a driver of transformation through expertise, MyConnecting supports organisations in the sustainable development of their practices.” Source: company website · checked Sep 6, 2026
9	EVEA	Partial evidence	Nantes, FranceHQ checked Sep 6, 2026	51-200	164 contacts →
	“Established in 2015, EVEA is a consulting firm, a software tools publisher, and a training organization.” Source: company website · checked Sep 6, 2026
10	Alenia Consulting	Partial evidence	Puteaux, FranceHQ checked Sep 6, 2026	51-200	161 contacts →
	“Alenia is a Tribe of IT consultants united and inclusive.” Source: company website · checked Sep 6, 2026
11	IQO	Indirect evidence	Paris, FranceHQ checked Sep 6, 2026	51-200	156 contacts →
	“In a world that’s constantly being reinvented, where only companies that choose to operate FOR GOOD will succeed in building resilient growth models, where business models combine…” Source: company website · checked Sep 6, 2026
12	R3	Indirect evidence	Paris, FranceHQ checked Sep 6, 2026	51-200	155 contacts →
	“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 6, 2026
13	Inelys	Indirect evidence	Poisy, FranceHQ checked Sep 6, 2026	201-500	149 contacts →
	“Le groupe INELYS est un cabinet de conseils financiers composé de plus de 300 experts.” Source: company website · checked Sep 6, 2026
14	Soler IDE	Indirect evidence	Massy, FranceHQ checked Sep 6, 2026	51-200	115 contacts →
	“SOLER IDE est l’un des leaders français du Conseil en Environnement.” Source: company website · checked Sep 6, 2026
15	Vpwhite	Indirect evidence	Boulogne-billancourt, FranceHQ checked Sep 6, 2026	51-200	105 contacts →
	“Since 2006, VPWhite has been supporting major corporations and public institutions in their digital transformation by bridging business needs with high-value technological…” Source: company website · checked Sep 6, 2026
16	ARP Astrance	Indirect evidence	Paris, FranceHQ checked Sep 6, 2026	51-200	105 contacts →
	“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 6, 2026
17	Sinteo	Indirect evidence	Paris, FranceHQ checked Sep 6, 2026	51-200	96 contacts →
	“Depuis 2008, nous accompagnons nos clients dans la triple révolution – environnementale, digitale et des usages – qui bouleverse l’immobilier.” Source: company website · checked Sep 6, 2026
18	LGI Sustainable Innovation	Partial evidence	Paris, FranceHQ checked Sep 6, 2026	51-200	93 contacts →
	“LGI is a European sustainable innovation consultancy delivering Innovation Strategy, Financing, Management & Communication services for public & private innovators.” Source: company website · checked Sep 6, 2026
19	BL Évolution	Indirect evidence	Paris, FranceHQ checked Sep 6, 2026	51-200	89 contacts →
	“Conseil et accompagnement en stratégie RSE et Développement Durable.” Source: company website · checked Sep 6, 2026
20	Ingetec Ingénierie	Indirect evidence	Paris, FranceHQ checked Sep 6, 2026	11-50	88 contacts →
	“Parce que le développement durable des territoires sur lesquels nous opérons est notre raison d’être, les experts d’Ingetec s’investissent chaque jour pour l’environnement…” Source: company website · checked Sep 6, 2026
21	Utopies	Strong evidence	Paris, FranceHQ checked Sep 6, 2026	51-200	81 contacts →
	“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 6, 2026
22	Etamine	Indirect evidence	Vaulx-en-velin, FranceHQ checked Sep 6, 2026	51-200	79 contacts →
	“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 6, 2026
23	CITAE	Indirect evidence	Montigny Le Bretonneux, FranceHQ checked Sep 6, 2026	51-200	74 contacts →
	“Citae est une société d’AMO et de conseils en développement durable au service des bâtiments et des territoires.” Source: company website · checked Sep 6, 2026
24	TEREA	Strong evidence	Marseille, FranceHQ checked Sep 6, 2026	11-50	73 contacts →
	“TEREA is a professional environmental consulting company specialized in environment and sustainable management of natural resources.” Source: company website · checked Sep 6, 2026
25	New-E	Indirect evidence	Lyon, FranceHQ checked Sep 6, 2026	51-200	72 contacts →
	“New-e, c'est la société de conseil opérationnel, spécialiste des métiers de la transition durable!” Source: company website · checked Sep 6, 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: sustainable IT consulting firms. 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 sustainable IT consulting firms.
Partial evidence: Its own public description names part of sustainable IT consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name sustainable IT consulting firms. 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 1,011 sustainable IT consulting firms based in France

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Sustainable IT consulting firms based in France at a glance

As of Sep 6, 2026

42.4%Verified-email coverage

5.8%Mobile-number coverage

17.0Average contacts per company

1-10Median size (employees)

28.1%Largest-city concentration · Paris

Sep 6, 2026Page data refreshed

Companies by employee count

1-10

801

11-50

147

51-200

201-500

501-1,000

1,001-5,000

10001+

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

6,8370–30

41531–60

261–90

190–180

39180+

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 IT consulting firms, 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 IT consulting firms”. 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 IT consulting firms), 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 IT 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 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, 7,294 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 6, 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 IT consulting firms by metro

Sustainable IT consulting firms in Paris284
Sustainable IT consulting firms in Lyon52

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 IT consulting firms, 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 IT consulting firms are there based in France?

RevenueBase identified 1,011 sustainable IT 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?

Wavestone, headquartered in La Defense, tops this list with the largest team on record.

Which city has the most sustainable IT consulting firms?

Paris leads with 284 headquartered companies, followed by Lyon (52) and Toulouse (21).

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 7,294 verified decision-maker contacts tracked across these 1,011 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 6, 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.