Company lists · Data refreshed September 2026

Top 25 Data center power infrastructure specialists based in France

Name: Data center power infrastructure specialists based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 248 companies tracked

RevenueBase identified 248 data center power infrastructure specialists headquartered in France as of September 2026 and tracks 4,730 professional contacts across them, including 1,511 with verified work emails. Paris is the largest hub.

This list covers data center power infrastructure specialists 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 19, 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 19, 2026 86% judged on-target in blind review

248Companies

4,730Contacts tracked

1,511Verified emails

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The 25 largest data center power infrastructure specialists based in France

Ranked by team size

Top 25 of 248 data center power infrastructure specialists based in France, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to data center power infrastructure specialists: 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	Mastergrid	Indirect evidence	Grenoble, FranceHQ checked Sep 19, 2026	201-500	280 contacts →
	Indirect evidence “MasterGrid est une entreprise spécialisée dans les services aux systèmes électriques, de la très haute à la basse tension.” Source: RevenueBase Database · checked Sep 19, 2026
2	Chloride	Partial evidence	Chassieu, FranceHQ checked Sep 19, 2026	201-500	239 contacts →
	Partial evidence “Since 1948 Chloride is a global leader in designing, manufacturing, and servicing industrial UPS systems to secure power supply for critical equipment across industries.” Source: RevenueBase Database · checked Sep 19, 2026
3	Data4	Strong evidence	Paris, FranceHQ checked Sep 19, 2026	201-500	238 contacts →
	Strong evidence “Data4 is a leading European operator and investor in data centers, designing, building and operating smart, scalable and sustainable digital infrastructures.” Source: RevenueBase Database · checked Sep 19, 2026
4	APL Data Center	Strong evidence	Montrouge, FranceHQ checked Sep 19, 2026	201-500	231 contacts →
	Strong evidence “Founded in 1983, APL is a Group specialised in the consultancy, engineering, construction and operation of data centers.” Source: RevenueBase Database · checked Sep 19, 2026
5	Hiolle Technologies	Indirect evidence	Prouvy, FranceHQ checked Sep 19, 2026	201-500	224 contacts →
	Indirect evidence “Hiolle Technologies vous accompagne dans l'intégration d'équipements électriques câblés et la prestation de service sur mesure Production d'équipements câblés : Nous proposons des…” Source: RevenueBase Database · checked Sep 19, 2026
6	Aventech	Partial evidence	Valence, FranceHQ checked Sep 19, 2026	201-500	204 contacts →
	Partial evidence “Expert en conception, industrialisation, production d'équipements électriques critiques HT/BT en environnements sévères : ↳ Oïl & Gaz, Centrale nucléaire & process, Centrale…” Source: RevenueBase Database · checked Sep 19, 2026
7	Legrand Data Center Solutions	Strong evidence	Croissy-beaubourg, FranceHQ checked Sep 19, 2026	10001+	133 contacts →
	Strong evidence “Managing a data center is complex.” Source: RevenueBase Database · checked Sep 19, 2026
8	Lautech	Indirect evidence	Lanester, FranceHQ checked Sep 19, 2026	51-200	60 contacts →
	Indirect evidence “LAUTECH est une société du groupe ALLEZ, spécialisée dans la conception, la fabrication et la réalisation des - Postes de livraison au poste de transformation HTA/BT-…” Source: RevenueBase Database · checked Sep 19, 2026
9	Santerne ILE DE France	Strong evidence	St.-ouen, FranceHQ checked Sep 19, 2026	51-200	59 contacts →
	Strong evidence “SANTERNE ILE DE FRANCE, entreprise de Vinci Energies, spécialisée en génie électrique (CFO/CFA/GTB/Sûreté) dans les domaines tertiaires, Data centers, industriels et…” Source: RevenueBase Database · checked Sep 19, 2026
10	Epsys Devient Cahors Solutions Intégrées	Indirect evidence	Saint Alban Leysse, FranceHQ checked Sep 19, 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 19, 2026
11	Stephya	Partial evidence	Montmorency, FranceHQ checked Sep 19, 2026	51-200	47 contacts →
	Partial evidence “STEPHYA est centre de services en DATACENTER, présent en France.” Source: RevenueBase Database · checked Sep 19, 2026
12	Sa3i	Indirect evidence	Thiais, FranceHQ checked Sep 19, 2026	51-200	43 contacts →
	Indirect evidence “SA3i intervient dans la gestion, l’optimisation et la maintenance de vos installations électriques (onduleurs).” Source: RevenueBase Database · checked Sep 19, 2026
13	IDNA	Partial evidence	Paris, FranceHQ checked Sep 19, 2026	11-50	42 contacts →
	Partial evidence “Cabinet de conseil à taille humaine spécialisé dans les infrastructures Datacenters, réseaux et sécurité.” Source: RevenueBase Database · checked Sep 19, 2026
14	Critical Building	Strong evidence	Fontenay-aux-roses, FranceHQ checked Sep 19, 2026	11-50	36 contacts →
	Strong evidence “CRITICAL BUILDING is an engineering company specialized in consulting, studies, audit, design, construction and commissioning of data centers.” Source: RevenueBase Database · checked Sep 19, 2026
15	Ipsip Group	Strong evidence	Vendargues, FranceHQ checked Sep 19, 2026	51-200	36 contacts →
	Strong evidence “IPSIP offers modular data center solutions that meet energy and security constraints IPSIP is also the added value service, we propose a global offer including + Products…” Source: RevenueBase Database · checked Sep 19, 2026
16	Amphenol Auxel FTG	Partial evidence	Gondecourt, FranceHQ checked Sep 19, 2026	201-500	29 contacts →
	Partial evidence “Amphenol AUXEL FTG is a global company that designs, manufactures, sells and provides support for interconnection and power distribution solutions in Electrical, Power Electronics…” Source: RevenueBase Database · checked Sep 19, 2026
17	Cleansoft Services & Solutions	Partial evidence	Aubagne, FranceHQ checked Sep 19, 2026	11-50	27 contacts →
	Partial evidence “Cleansoft est une société spécialisée dans le Maintien des Conditions Opérationnelles de vos Infrastructures Informatiques & Télécoms et plus particulièrement dans l'Entretien, la…” Source: RevenueBase Database · checked Sep 19, 2026
18	CEREL	Partial evidence	Roissy-En-France, FranceHQ checked Sep 19, 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 19, 2026
19	Amphenol Auxel	Indirect evidence	Gondecourt, FranceHQ checked Sep 19, 2026	201-500	27 contacts →
	Indirect evidence “AUXEL is part of the Amphenol group.” Source: RevenueBase Database · checked Sep 19, 2026
20	Clariteam	Indirect evidence	St.-cloud, FranceHQ checked Sep 19, 2026	11-50	26 contacts →
	Indirect evidence “Clariteam by Constellation, l'expert des gestes de proximité en datacenters.” Source: RevenueBase Database · checked Sep 19, 2026
21	Efirack	Indirect evidence	Migennes, FranceHQ checked Sep 19, 2026	51-200	25 contacts →
	Indirect evidence “EFIRACK: designer of solutions, from the rack to the datacenter Recognized for its expertise in Universal Thermal Corridor and urbanization of server and network racks, Efirack…” Source: RevenueBase Database · checked Sep 19, 2026
22	Madec Électricité	Indirect evidence	Landivisiau, FranceHQ checked Sep 19, 2026	11-50	24 contacts →
	Indirect evidence “Expert national en équipement des espaces commerciaux & retail Installations électriques courants forts & courants faibles Maintenance préventive des systèmes électriques…” Source: RevenueBase Database · checked Sep 19, 2026
23	Neoler Energie	Indirect evidence	Conflans-sainte-honorine, FranceHQ checked Sep 19, 2026	11-50	21 contacts →
	Indirect evidence “NEOLER, créée en 2004 est une entreprise indépendante, incontournable sur ses marchés, moderne, respectueuse de l’environnement et d’une quarantaine de collaborateurs de haut…” Source: RevenueBase Database · checked Sep 19, 2026
24	Resipelec	Indirect evidence	Templemars, FranceHQ checked Sep 19, 2026	11-50	21 contacts →
	Indirect evidence “Resipelec opère et met en œuvre ses services et compétences dans tous secteurs liés à l'ingénierie électrique HT/BT/TBT, l'automatisme et les réseaux convergents.” Source: RevenueBase Database · checked Sep 19, 2026
25	Thésée Datacenter	Indirect evidence	Aubergenville, FranceHQ checked Sep 19, 2026	11-50	19 contacts →
	Indirect evidence “Thésée Datacenter est un acteur français de services d’hébergement de colocation (de quelques baies jusqu’à un bâtiment complet) neutre vis-à-vis des opérateurs télécom et des…” Source: RevenueBase Database · checked Sep 19, 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: data center power infrastructure specialists. 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 data center power infrastructure specialists.
Partial evidence: Its own public description names part of data center power infrastructure specialists, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name data center power infrastructure specialists. 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 248 data center power infrastructure specialists based in France

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Data center power infrastructure specialists based in France at a glance

As of Sep 19, 2026

31.9%Verified-email coverage

19.1Average contacts per company

11-50Median size (employees)

10.1%Largest-city concentration · Paris

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

101

11-50

102

51-200

201-500

501-1,000

1,001-5,000

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 248 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 data center power infrastructure specialists, 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 “data center power infrastructure specialists”. 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 data center power infrastructure specialists), 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 data center power infrastructure specialists, 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, 1,511 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 19, 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.

Data center power infrastructure specialists by metro

Data center power infrastructure specialists in Paris25

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 data center power infrastructure specialists, 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 data center power infrastructure specialists are there based in France?

RevenueBase identified 248 data center power infrastructure specialists 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?

Mastergrid, headquartered in France, tops this list with the largest team on record.

Which city has the most data center power infrastructure specialists?

Paris leads with 25 headquartered companies, followed by Lyon (4) and Annecy (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 1,511 verified decision-maker contacts tracked across these 248 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 19, 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.