Company lists · Data refreshed September 2026

Top 25 Energy infrastructure contractors based in France

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

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 228 companies tracked

RevenueBase identified 228 energy infrastructure contractors headquartered in France as of September 2026 and tracks 31,641 professional contacts across them, including 6,561 with verified work emails. Paris is the largest hub.

This list covers energy infrastructure contractors 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

228Companies

31,641Contacts tracked

6,561Verified emails

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The 25 largest energy infrastructure contractors based in France

Ranked by team size

Top 25 of 228 energy infrastructure contractors 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 contractors: 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	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
2	SADE	Partial evidence	75685 Paris Cedex 14, FranceHQ checked Sep 16, 2026	5,001-10,000	2,527 contacts →
	Partial evidence “RESEAUX ET INFRASTRUCTURES Entreprise plus que centenaire forte de quelque 7 collaborateurs, la SADE est le spécialiste de la conception, la construction, la réhabilitation et…” Source: RevenueBase Database · checked Sep 16, 2026
3	Groupe Ponticelli Frères	Partial evidence	FranceHQ checked Sep 16, 2026	5,001-10,000	1,829 contacts →
	Partial evidence “The Ponticelli Frères Group is one of the main European service suppliers to companies in the energy (oil and gas, nuclear, renewable energy), industrial (chemical, steelworks…” Source: RevenueBase Database · checked Sep 16, 2026
4	Soletanche Bachy	Indirect evidence	Rueil-malmaison, FranceHQ checked Sep 16, 2026	5,001-10,000	1,222 contacts →
	Indirect evidence “Soletanche Bachy is a world benchmark in foundations and soil technologies, and is involved in over projects every year.” Source: RevenueBase Database · checked Sep 16, 2026
5	Spiecapag	Indirect evidence	Nanterre, FranceHQ checked Sep 16, 2026	1,001-5,000	558 contacts →
	Indirect evidence “Spiecapag at a glance A skill: Spiecapag is part of VINCI Group, specialised in the delivery of onshore pipelines and facilities such as compression, pumping and metering…” Source: RevenueBase Database · checked Sep 16, 2026
6	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
7	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
8	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
9	Anotech	Partial evidence	Paris, FranceHQ checked Sep 16, 2026	501-1,000	292 contacts →
	Partial evidence “Anotech delivers complex energy projects by integrating project governance, controls, engineering integrity, and execution into a single, accountable delivery model across the…” Source: RevenueBase Database · checked Sep 16, 2026
10	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
11	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
12	Entrepose Group	Strong evidence	Colombes, FranceHQ checked Sep 16, 2026	1,001-5,000	240 contacts →
	Strong 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
13	Serpollet	Indirect evidence	Vénissieux, FranceHQ checked Sep 16, 2026	201-500	187 contacts →
	Indirect evidence “Entreprise phare du groupe SERFIM, SERPOLLET possède un savoir-faire de 140 ans dans le domaine des travaux publics et développe ses compétences dans la création des réseaux…” Source: RevenueBase Database · checked Sep 16, 2026
14	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
15	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
16	IMING	Partial evidence	Montrouge, FranceHQ checked Sep 16, 2026	51-200	100 contacts →
	Partial evidence “IMING is an expert in the engineering of highly technical projects, covering the entire value chain in the fields of mobility services, energy and construction.” Source: RevenueBase Database · checked Sep 16, 2026
17	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
18	Etchart Energies	Partial evidence	Anglet, FranceHQ checked Sep 16, 2026	51-200	87 contacts →
	Partial evidence “Etchart Energies, anciennement Arrambide, est une filiale du groupe Etchart depuis plus de 10 ans maintenant.” Source: RevenueBase Database · checked Sep 16, 2026
19	Groupe Adré	Indirect evidence	Mérignac, FranceHQ checked Sep 16, 2026	201-500	82 contacts →
	Indirect evidence “Le Groupe ADRÉ est une entité regroupant plusieurs sociétés, dont ADRÉ Réseaux, ADRÉ Eau, ADRÉ Ingénierie, ADRÉ Énergies et le Campus ADRÉ.” Source: RevenueBase Database · checked Sep 16, 2026
20	VFE	Partial evidence	Dompierre Sur Yon, FranceHQ checked Sep 16, 2026	51-200	80 contacts →
	Partial evidence “VFE conçoit, réalise et maintient les infrastructures de réseaux d'énergies, le génie électrique et les nouvelles énergies, le génie thermique et climatique, la maintenance et les…” Source: RevenueBase Database · checked Sep 16, 2026
21	Africa Power Services	Partial evidence	Bordeaux, FranceHQ checked Sep 16, 2026	11-50	74 contacts →
	Partial evidence “Energy is essential to the success of every project.” Source: RevenueBase Database · checked Sep 16, 2026
22	Arnest	Indirect evidence	Puteaux, FranceHQ checked Sep 16, 2026	51-200	72 contacts →
	Indirect evidence “Organisée sur un modèle de start-up, Arnest réalise des services d’ingénierie et de management de projets pour le secteur de l'énergie.” Source: RevenueBase Database · checked Sep 16, 2026
23	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
24	Epsys Devient Cahors Solutions Intégrées	Indirect evidence	Saint Alban Leysse, FranceHQ checked Sep 16, 2026	201-500	57 contacts →
	Indirect evidence “EPSYS, depuis 90 ans et plus de postes livrés est le leader sur le marché français de la production de solutions préfabriquées.” Source: RevenueBase Database · checked Sep 16, 2026
25	ENTRA	Indirect evidence	Aubervilliers, FranceHQ checked Sep 16, 2026	51-200	53 contacts →
	Indirect evidence “Créée en 1945, la société ENTRA, filiale du Groupe SYLPA depuis 2017, ancrée historiquement sur le bassin économique de la Seine Saint Denis et du Val d'Oise, adresse ses…” 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 contractors. 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 contractors.
Partial evidence: Its own public description names part of energy infrastructure contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy infrastructure contractors. 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 228 energy infrastructure contractors based in France

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Energy infrastructure contractors based in France at a glance

As of Sep 16, 2026

20.7%Verified-email coverage

138.8Average contacts per company

11-50Median size (employees)

5.3%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 228 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 contractors, 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 contractors”. 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 contractors), 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 contractors, 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, 6,561 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 contractors, 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 contractors are there based in France?

RevenueBase identified 228 energy infrastructure contractors 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?

Assystem, headquartered in Courbevoie, tops this list with the largest team on record.

Which city has the most energy infrastructure contractors?

Paris leads with 12 headquartered companies, followed by Nanterre (5) and Lyon (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 6,561 verified decision-maker contacts tracked across these 228 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.