Company lists · Data refreshed September 2026

Top 25 Critical infrastructure contractors based in France

Name: Critical 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 76 companies tracked

RevenueBase identified 76 critical infrastructure contractors headquartered in France as of September 2026 and tracks 14,127 professional contacts across them, including 1,800 with verified work emails. Paris is the largest hub.

This list covers critical 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

76Companies

14,127Contacts tracked

1,800Verified emails

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The 25 largest critical infrastructure contractors based in France

Ranked by team size

Top 25 of 76 critical 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 critical 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	Ortec Group	Indirect evidence	Aix-en-provence, FranceHQ checked Sep 16, 2026	10001+	3,436 contacts →
	Indirect evidence “En conjuguant depuis sa création audace et rigueur, le groupe Ortec est devenu aujourd’hui un des leaders des services à l’industrie, l’énergie et l’environnement.” 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	GEPSA	Indirect evidence	Courbevoie, FranceHQ checked Sep 16, 2026	1,001-5,000	537 contacts →
	Indirect evidence “Et si vous faisiez le choix d’une entreprise qui s’engage chaque jour sur des missions qui ont du sens?” Source: RevenueBase Database · checked Sep 16, 2026
4	Babcock France	Indirect evidence	Paris, FranceHQ checked Sep 16, 2026	501-1,000	207 contacts →
	Indirect evidence “Société d’ingénierie spécialisée dans le soutien aux services stratégiques des états, Babcock France assure l’exploitation d’aéronefs, la mise à disposition et la maintenance…” Source: RevenueBase Database · checked Sep 16, 2026
5	GTM SUD	Indirect evidence	Vitrolles, FranceHQ checked Sep 16, 2026	201-500	161 contacts →
	Indirect evidence “GTM Sud, filiale de VINCI Construction, est un acteur majeur dans le domaine des travaux publics et du génie civil.” Source: RevenueBase Database · checked Sep 16, 2026
6	ACEPP	Partial evidence	Lyon, FranceHQ checked Sep 16, 2026	51-200	144 contacts →
	Partial evidence “INGÉNIERISTE DE LA CONSTRUCTION DES INFRASTRUCTURES COMPLEXES Pour garantir à nos clients, le transfert réussi à l’exploitant des d’infrastructures complexes, notre département…” Source: RevenueBase Database · checked Sep 16, 2026
7	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
8	Global Technologies	Strong evidence	Clichy, FranceHQ checked Sep 16, 2026	51-200	131 contacts →
	Strong evidence “GLOBAL Technologies is an International full-service Technology Company specialized in designing, installing, operating and maintaining critical technical infrastructures and…” Source: RevenueBase Database · checked Sep 16, 2026
9	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
10	MOTER	Indirect evidence	Mérignac, FranceHQ checked Sep 16, 2026	51-200	64 contacts →
	Indirect evidence “Moter et Sanz TP Médoc : aménageurs de la Gironde depuis plus de 50 ans Qui sommes-nous?” Source: RevenueBase Database · checked Sep 16, 2026
11	Jerome BTP	Partial evidence	Ballan-miré, FranceHQ checked Sep 16, 2026	51-200	45 contacts →
	Partial 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
12	GT Canalisations	Indirect evidence	Arnage, FranceHQ checked Sep 16, 2026	51-200	36 contacts →
	Indirect evidence “GT Canalisations is an oil and energy company based out of 16 rue Ernest Sylvain Bollée, ARNAGE, France.” Source: RevenueBase Database · checked Sep 16, 2026
13	CTP Groupe BIR	Indirect evidence	Cormontreuil, FranceHQ checked Sep 16, 2026	51-200	35 contacts →
	Indirect evidence “CHAMPAGNE TRAVAUX PUBLICS est une entreprise de travaux publics située à Cormontreuil dans la Marne (51)” Source: RevenueBase Database · checked Sep 16, 2026
14	Caroni Génie Civil	Indirect evidence	Lille, FranceHQ checked Sep 16, 2026	11-50	35 contacts →
	Indirect evidence “Caroni Génie Civil, filiale de VINCI Construction, est spécialisée dans le domaine des travaux publics et du génie civil dans les Hauts-de-France.” Source: RevenueBase Database · checked Sep 16, 2026
15	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
16	TERGI	Indirect evidence	Collégien, FranceHQ checked Sep 16, 2026	51-200	23 contacts →
	Indirect evidence “Société de travaux publics” Source: RevenueBase Database · checked Sep 16, 2026
17	Sotraix Travaux Publics	Indirect evidence	Aix-noulette, FranceHQ checked Sep 16, 2026	51-200	23 contacts →
	Indirect evidence “Société de travaux de VRD pour clients privés ou publics” Source: RevenueBase Database · checked Sep 16, 2026
18	Icomme Ingenierie	Partial evidence	Talence, FranceHQ checked Sep 16, 2026	11-50	22 contacts →
	Partial evidence “Spécialiste de l’ingénierie de la conception, de la réalisation et de l’exploitation, nous nous engageons à la réussite de projets d’infrastructures à forte complexité, au service…” Source: RevenueBase Database · checked Sep 16, 2026
19	Actium Groupe	Indirect evidence	Caurel, FranceHQ checked Sep 16, 2026	51-200	22 contacts →
	Indirect evidence “Découvrez notre expertise et nos réalisations sur notre site ou suivez nous pour rester informé de nos actualités et projets!” Source: RevenueBase Database · checked Sep 16, 2026
20	Serpollet Dauphiné	Indirect evidence	Pontcharra, FranceHQ checked Sep 16, 2026	51-200	21 contacts →
	Indirect evidence “SERPOLLET Dauphiné, créée en 2011 pour couvrir le territoire isèrois, est spécialisée dans les réseaux de distribution (réseaux gaz et télécom, réseaux électriques aériens et…” Source: RevenueBase Database · checked Sep 16, 2026
21	Stepp Société DE Travaux D'équipements Publics ET Privés	Indirect evidence	Lampaul-guimiliau, FranceHQ checked Sep 16, 2026	11-50	18 contacts →
	Indirect evidence “Notre raison d’être : « Œuvrer pour le développement et la durabilité des réseaux divers sur notre territoire » Nos valeurs : Confiance Solidarité Motivation La STEPP est…” Source: RevenueBase Database · checked Sep 16, 2026
22	Spie Batignolles - Nardelli TP	Indirect evidence	Drap, FranceHQ checked Sep 16, 2026	51-200	14 contacts →
	Indirect evidence “Spie Batignolles - Nardelli TP est une entreprise spécialisée dans les travaux publics basée au Plan de Rimont, Drap, Provence-Alpes-Côte d'Azur, France.” Source: RevenueBase Database · checked Sep 16, 2026
23	Restech Groupe Synelis	Indirect evidence	Crach, FranceHQ checked Sep 16, 2026	11-50	14 contacts →
	Indirect evidence “RESTECH 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
24	Thibaut Flandres Artois	Indirect evidence	Nieppe, FranceHQ checked Sep 16, 2026	11-50	11 contacts →
	Indirect evidence “THIBAUT FLANDRES ARTOIS is a construction company based out of RUE DES TROIS TILLEULS, Nieppe, Hautsdefrance, France.” Source: RevenueBase Database · checked Sep 16, 2026
25	TGM	Indirect evidence	Boulogne Billancourt, FranceHQ checked Sep 16, 2026	11-50	11 contacts →
	Indirect evidence “TGM met tout son savoir-faire au profit de vos projets en s’adaptant à vos besoins et à vos contraintes.” 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: critical 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 critical infrastructure contractors.
Partial evidence: Its own public description names part of critical infrastructure contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name critical 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 76 critical infrastructure contractors based in France

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Critical infrastructure contractors based in France at a glance

As of Sep 16, 2026

12.7%Verified-email coverage

185.9Average contacts per company

11-50Median size (employees)

6.6%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 76 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 critical 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 “critical 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 critical 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 critical 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, 1,800 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 critical 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 critical infrastructure contractors are there based in France?

RevenueBase identified 76 critical 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?

Ortec Group, headquartered in Aix-En-Provence, tops this list with the largest team on record.

Which city has the most critical infrastructure contractors?

Paris leads with 5 headquartered companies, followed by Merignac (3) and Aix-En-Provence (1).

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 1,800 verified decision-maker contacts tracked across these 76 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.