Company lists · Data refreshed September 2026

Top 25 Sustainable IT consulting firms based in Paris, France

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

Compiled by the RevenueBase Data Team Data refreshed Sep 13, 2026 284 companies tracked

RevenueBase identified 284 sustainable IT consulting firms headquartered in Paris, France as of September 2026 and tracks 3,070 professional contacts across them, including 1,349 with verified work emails and 113 with mobile numbers. Paris is the largest hub.

This list covers sustainable IT consulting firms headquartered in Paris, 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 13, 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 13, 2026 86% judged on-target in blind review

284Companies

3,070Contacts tracked

1,349Verified emails

113Mobile numbers

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The 25 largest sustainable IT consulting firms based in Paris, France

Ranked by team size

Top 25 of 284 sustainable IT consulting firms based in Paris, France, ranked by team size, largest first. Data refreshed Sep 13, 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	Greenflex	Indirect evidence	Paris, FranceHQ checked Sep 13, 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 13, 2026
2	A2 Consulting	Partial evidence	Paris, FranceHQ checked Sep 13, 2026	51-200	185 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 13, 2026
3	IQO	Indirect evidence	Paris, FranceHQ checked Sep 13, 2026	51-200	156 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 13, 2026
4	R3	Indirect evidence	Paris, FranceHQ checked Sep 13, 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 13, 2026
5	ARP Astrance	Indirect evidence	Paris, FranceHQ checked Sep 13, 2026	51-200	105 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 13, 2026
6	Sinteo	Indirect evidence	Paris, FranceHQ checked Sep 13, 2026	51-200	96 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 13, 2026
7	LGI Sustainable Innovation	Partial evidence	Paris, FranceHQ checked Sep 13, 2026	51-200	93 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 13, 2026
8	BL Évolution	Indirect evidence	Paris, FranceHQ checked Sep 13, 2026	51-200	89 contacts →
	Indirect evidence “Conseil et accompagnement en stratégie RSE et Développement Durable.” Source: RevenueBase Database · checked Sep 13, 2026
9	Ingetec Ingénierie	Indirect evidence	Paris, FranceHQ checked Sep 13, 2026	11-50	88 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 13, 2026
10	Utopies	Strong evidence	Paris, FranceHQ checked Sep 13, 2026	51-200	81 contacts →
	Strong 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 13, 2026
11	TWYCE	Indirect evidence	Paris, FranceHQ checked Sep 13, 2026	201-500	71 contacts →
	Indirect evidence “Avec une dizaine d’années cumulées en cabinet de conseil, nous avons pour ambition de faciliter la relation entre les Consultants, les clients et le cabinet.” Source: RevenueBase Database · checked Sep 13, 2026
12	Erese Groupe Scet HTC	Indirect evidence	Paris, FranceHQ checked Sep 13, 2026	51-200	62 contacts →
	Indirect evidence “ERESE \| Groupe SCET HTC est un bureau d’études spécialisé dans les énergies, les réseaux et l’environnement.” Source: RevenueBase Database · checked Sep 13, 2026
13	Transitions	Indirect evidence	Paris, FranceHQ checked Sep 13, 2026	11-50	56 contacts →
	Indirect evidence “TRANSITIONS, agence de conseil en stratégie du développement durable, conduit des missions au niveau national et international, auprès de collectivités locales, d’entreprises, de…” Source: RevenueBase Database · checked Sep 13, 2026
14	Suricats Consulting	Indirect evidence	Paris, FranceHQ checked Sep 13, 2026	51-200	54 contacts →
	Indirect evidence “L'optimisme mène à de grandes transformations!” Source: RevenueBase Database · checked Sep 13, 2026
15	DES Enjeux ET DES Hommes	Indirect evidence	Paris, FranceHQ checked Sep 13, 2026	11-50	48 contacts →
	Indirect evidence “Des Enjeux et Des Homme est un cabinet spécialisé dans la transformation des entreprises et organisations vers des écosystèmes soutenables et résilients.” Source: RevenueBase Database · checked Sep 13, 2026
16	G-On	Indirect evidence	Paris, FranceHQ checked Sep 13, 2026	11-50	47 contacts →
	Indirect evidence “Conseil en environnement, bien-être et innovation durable.” Source: RevenueBase Database · checked Sep 13, 2026
17	Climateseed	Partial evidence	Paris, FranceHQ checked Sep 13, 2026	11-50	40 contacts →
	Partial evidence “ClimateSeed combines strategic consulting and digital platforms to help organizations design and deploy ambitious climate strategies.” Source: RevenueBase Database · checked Sep 13, 2026
18	Findle	Indirect evidence	Paris, FranceHQ checked Sep 13, 2026	11-50	37 contacts →
	Indirect evidence “Fondé en 2016, Findle est un cabinet de conseil spécialisé dans les projets de transformation des distributeurs et de leur Supply Chain.” Source: RevenueBase Database · checked Sep 13, 2026
19	TERRA	Indirect evidence	Paris, FranceHQ checked Sep 13, 2026	11-50	35 contacts →
	Indirect evidence “Terra est un bureau d’étude et de conseil en durabilité des systèmes.” Source: RevenueBase Database · checked Sep 13, 2026
20	EKO Events	Indirect evidence	Paris, FranceHQ checked Sep 13, 2026	11-50	30 contacts →
	Indirect evidence “eko Events, l'événement durable ou Comment organiser un événement avec l'impact le plus faible sur notre environnement.” Source: RevenueBase Database · checked Sep 13, 2026
21	L'oiseau Rare	Indirect evidence	Paris, FranceHQ checked Sep 13, 2026	51-200	29 contacts →
	Indirect evidence “Le cabinet l’Oiseau Rare est une société française qui a pour vocation d’accompagner les départements innovations et systèmes d’information des grands groupes des secteurs de la…” Source: RevenueBase Database · checked Sep 13, 2026
22	Axionable	Partial evidence	Paris, FranceHQ checked Sep 13, 2026	11-50	28 contacts →
	Partial evidence “Axionable is the leader in sustainable artificial intelligence in France Certified B Corp, labelled GreenTech Innovation and AI-certified (LNE), member of the board of directors…” Source: RevenueBase Database · checked Sep 13, 2026
23	Altopi	Indirect evidence	Paris, FranceHQ checked Sep 13, 2026	11-50	27 contacts →
	Indirect evidence “Altopi, Solutions durables pour entreprises engagées Altopi accompagne les PME et ETI dans leur transition sociétale et écologique.” Source: RevenueBase Database · checked Sep 13, 2026
24	Andex International	Indirect evidence	Paris, FranceHQ checked Sep 13, 2026	51-200	26 contacts →
	Indirect evidence “Depuis sa création en 2007, ANDEX vous accompagne dans votre quête d’alignement stratégique du système d’information.” Source: RevenueBase Database · checked Sep 13, 2026
25	By.O Group	Indirect evidence	Paris, FranceHQ checked Sep 13, 2026	11-50	22 contacts →
	Indirect evidence “Cubik Procurement rassemble la communauté dédiée aux achats, à la performance fournisseurs et à la transformation des écosystèmes animée par Cubik, groupe indépendant de conseil…” Source: RevenueBase Database · checked Sep 13, 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 284 sustainable IT consulting firms based in Paris, France

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Sustainable IT consulting firms based in Paris, France at a glance

As of Sep 13, 2026

43.9%Verified-email coverage

3.7%Mobile-number coverage

10.8Average contacts per company

1-10Median size (employees)

100.0%Largest-city concentration · Paris

Sep 13, 2026Page data refreshed

Companies by employee count

1-10

210

11-50

51-200

201-500

501-1,000

10001+

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 15.0d

1,0770–30

25731–60

461–90

390–180

8180+

Company record updated

Median 50.0d

00–30

1,88231–60

82861–90

22190–180

139180+

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 Paris, 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 Paris 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, 1,349 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 13, 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 in France

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 Paris, France?

RevenueBase identified 284 sustainable IT consulting firms headquartered in Paris, 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?

Greenflex, headquartered in Paris, 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 1,349 verified decision-maker contacts tracked across these 284 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 13, 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.