Company lists · Data refreshed September 2026

Top 25 Energy infrastructure firms based in France

Name: Energy infrastructure firms based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 113 companies tracked

RevenueBase identified 113 energy infrastructure firms headquartered in France as of September 2026 and tracks 36,689 professional contacts across them, including 9,149 with verified work emails. Paris is the largest hub.

This list covers energy infrastructure 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 16, 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 16, 2026 86% judged on-target in blind review

113Companies

36,689Contacts tracked

9,149Verified emails

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The 25 largest energy infrastructure firms based in France

Ranked by team size

Top 25 of 113 energy infrastructure firms based in France, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to energy infrastructure 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	ENGIE	Indirect evidence	Paris, FranceHQ checked Sep 16, 2026	10001+	15,504 contacts →
	Indirect evidence “What if your next career adventure started with ENGIE?” Source: RevenueBase Database · checked Sep 16, 2026
2	Assystem	Partial evidence	Courbevoie, FranceHQ checked Sep 16, 2026	5,001-10,000	6,518 contacts →
	Partial evidence “Assystem, one of the world's leading independent nuclear engineering companies, is committed to accelerating the energy transition.” Source: RevenueBase Database · checked Sep 16, 2026
3	Spac SAS Groupe Colas	Indirect evidence	Nanterre, FranceHQ checked Sep 16, 2026	1,001-5,000	390 contacts →
	Indirect evidence “See below for English version) Spac est un des principaux acteurs des projets de transport et de distribution d’eau et d’énergie en France et à l'étranger.” Source: RevenueBase Database · checked Sep 16, 2026
4	Doris Group	Partial evidence	Paris, FranceHQ checked Sep 16, 2026	501-1,000	365 contacts →
	Partial evidence “DORIS is a leader in the provision of engineering, advisory, and project management services to the energy industry.” Source: RevenueBase Database · checked Sep 16, 2026
5	Atlantic Ingénierie	Indirect evidence	Saint-herblain, FranceHQ checked Sep 16, 2026	201-500	341 contacts →
	Indirect evidence “Atlantic Ingénierie, l’énergie d’avancer ensemble Chez Atlantic Ingénierie, nous avons une conviction : les projets d’énergie et d’industrie avancent mieux quand on allie…” Source: RevenueBase Database · checked Sep 16, 2026
6	TSG France	Indirect evidence	Le Plessis Robinson, FranceHQ checked Sep 16, 2026	1,001-5,000	312 contacts →
	Indirect evidence “Bienvenue sur la page officielle de TSG France!” Source: RevenueBase Database · checked Sep 16, 2026
7	SOTEB	Indirect evidence	Lyon Aéroport Saint Exupéry, FranceHQ checked Sep 16, 2026	201-500	276 contacts →
	Indirect evidence “Les équipes SOTEB étudient, fabriquent, installent, mettent en service et assurent la maintenance des équipements électriques et de process auprès des grands sites industriels et…” Source: RevenueBase Database · checked Sep 16, 2026
8	Groupe Allez	Indirect evidence	Paris, FranceHQ checked Sep 16, 2026	1,001-5,000	274 contacts →
	Indirect evidence “Fondée en 1932 par Bernard Allez, la société ALLEZ s’est rapidement spécialisée dans la construction de réseaux électriques.” Source: RevenueBase Database · checked Sep 16, 2026
9	Entrepose Group	Partial evidence	Colombes, FranceHQ checked Sep 16, 2026	1,001-5,000	240 contacts →
	Partial evidence “SPECIALISED ACTIVITIES & EPC CONTRACTOR FOR THE ENERGY INDUSTRY International Contractor for design, construction and operating of production, transport and storage…” Source: RevenueBase Database · checked Sep 16, 2026
10	EDF PEI	Indirect evidence	Paris, FranceHQ checked Sep 16, 2026	201-500	154 contacts →
	Indirect evidence “EDF PEI - Production Electrique Insulaire -est un acteur majeur de la production d’électricité dans les zones non-interconnectées.” Source: RevenueBase Database · checked Sep 16, 2026
11	ETPM	Indirect evidence	Siège Social Arcangues, FranceHQ checked Sep 16, 2026	201-500	141 contacts →
	Indirect evidence “ETPM intervient au quotidien pour les principaux concessionnaires de réseaux d’énergie et les syndicats d’électrification départementaux, métropoles, communes et collectivités.” Source: RevenueBase Database · checked Sep 16, 2026
12	Castres Equipement	Partial evidence	Saint-Etienne-Du-Rouvray, FranceHQ checked Sep 16, 2026	51-200	112 contacts →
	Partial evidence “Fondé en 1983, le GROUPE CASTRES est spécialisé dans les travaux de construction et dans la maintenance d’infrastructures de distribution d’énergie (stations-services GPL / GNL…” Source: RevenueBase Database · checked Sep 16, 2026
13	Spie Thépault	Indirect evidence	Cergy, FranceHQ checked Sep 16, 2026	201-500	98 contacts →
	Indirect evidence “SPIE Thépault est le spécialiste historique des réseaux électriques haute tension.” Source: RevenueBase Database · checked Sep 16, 2026
14	GAZ Europeen, Groupe Butagaz	Indirect evidence	Levallois-perret, FranceHQ checked Sep 16, 2026	51-200	82 contacts →
	Indirect evidence “Gaz Européen, entité du Groupe Butagaz, est spécialiste de la fourniture d’énergies (gaz naturel et électricité) auprès des copropriétés et des professionnels de l'immobilier…” Source: RevenueBase Database · checked Sep 16, 2026
15	Territoire D'énergie Loire-Atlantique Te44	Indirect evidence	Orvault, FranceHQ checked Sep 16, 2026	51-200	79 contacts →
	Indirect evidence “Territoire d'énergie Loire-Atlantique (TE44) est l'acteur public référent des énergies au service des collectivités de Loire-Atlantique.” Source: RevenueBase Database · checked Sep 16, 2026
16	SIÉML	Indirect evidence	Écouflant, FranceHQ checked Sep 16, 2026	51-200	74 contacts →
	Indirect evidence “Le Syndicat intercommunal d’énergies de Maine-et-Loire (Siéml) est un acteur de premier plan du service public de l’énergie dans le département.” Source: RevenueBase Database · checked Sep 16, 2026
17	Dietsmann France	Indirect evidence	Toulouse, FranceHQ checked Sep 16, 2026	5,001-10,000	61 contacts →
	Indirect evidence “Le plus grand spécialiste indépendant en Opération et Maintenance de centrales de production d'énergie.” Source: RevenueBase Database · checked Sep 16, 2026
18	Team Réseaux	Indirect evidence	Evreux, FranceHQ checked Sep 16, 2026	51-200	57 contacts →
	Indirect evidence “Avec l'avènement des technologie de l'information, l'ensemble de la chaîne énergétique devient intelligent - Les réseaux de distribution (SMART GRID)- Les villes (SMART CITY)- Les…” Source: RevenueBase Database · checked Sep 16, 2026
19	Eureteq	Indirect evidence	Tarbes, FranceHQ checked Sep 16, 2026	51-200	45 contacts →
	Indirect evidence “EURETEQ est une société d'ingénierie indépendante dont les activités sont portées par 3 business units intervenant dans les domaines - des pipelines (BU CANA): Activité historique…” Source: RevenueBase Database · checked Sep 16, 2026
20	Jerome BTP	Strong evidence	Ballan-miré, FranceHQ checked Sep 16, 2026	51-200	45 contacts →
	Strong evidence “JEROME BTP est une entreprise de Travaux Publics qui réalise des infrastructures relatives à l'Eau, à l'Energie et à l'Industrie.” Source: RevenueBase Database · checked Sep 16, 2026
21	Infra-Build	Indirect evidence	Camon, FranceHQ checked Sep 16, 2026	51-200	36 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
22	DE Viris	Indirect evidence	Aix-en-provence, FranceHQ checked Sep 16, 2026	51-200	31 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
23	CEREL	Partial evidence	Roissy-En-France, FranceHQ checked Sep 16, 2026	11-50	27 contacts →
	Partial evidence “CEREL existe car nous croyons fermement que la réponse aux défis énergétiques de demain passe par la modernisation et la fiabilisation des infrastructures électriques…” Source: RevenueBase Database · checked Sep 16, 2026
24	ELTIS	Indirect evidence	Meythet, FranceHQ checked Sep 16, 2026	51-200	22 contacts →
	Indirect evidence “Eltis réunit au sein d’une même entreprise tous les métiers de l’ingénierie électrique pour prendre en main l’ensemble vos besoins : depuis l’installation de votre station solaire…” Source: RevenueBase Database · checked Sep 16, 2026
25	ENI GAS & Power France S.A	Indirect evidence	Levallois-perret, FranceHQ checked Sep 16, 2026	51-200	21 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 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: energy infrastructure 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 energy infrastructure firms.
Partial evidence: Its own public description names part of energy infrastructure firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy infrastructure 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 113 energy infrastructure firms based in France

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Energy infrastructure firms based in France at a glance

As of Sep 16, 2026

24.9%Verified-email coverage

324.7Average contacts per company

11-50Median size (employees)

11.5%Largest-city concentration · Paris

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 113 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 energy infrastructure 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 “energy infrastructure 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 energy infrastructure 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 energy infrastructure 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, 9,149 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 16, 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 energy infrastructure 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 energy infrastructure firms are there based in France?

RevenueBase identified 113 energy infrastructure 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?

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

Which city has the most energy infrastructure firms?

Paris leads with 13 headquartered companies, followed by Levallois-Perret (3) and Nanterre (3).

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 9,149 verified decision-maker contacts tracked across these 113 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 16, 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.