Company lists · Data refreshed September 2026

Top 25 Offshore electrical engineering firms based in France

Name: Offshore electrical engineering firms based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 659 companies tracked

RevenueBase identified 659 offshore electrical engineering firms headquartered in France as of September 2026 and tracks 16,670 professional contacts across them, including 5,394 with verified work emails. Paris is the largest hub.

This list covers offshore electrical engineering 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 17, 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 17, 2026 86% judged on-target in blind review

659Companies

16,670Contacts tracked

5,394Verified emails

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The 25 largest offshore electrical engineering firms based in France

Ranked by team size

Top 25 of 659 offshore electrical engineering firms based in France, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to offshore electrical engineering 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	Chantiers DE L'atlantique	Indirect evidence	Saint-nazaire, FranceHQ checked Sep 17, 2026	1,001-5,000	2,004 contacts →
	Indirect evidence “Installée sur la façade Atlantique, Chantiers de l’Atlantique est une entreprise de construction maritime (paquebots, sous-stations…) et de services aux flottes.” Source: RevenueBase Database · checked Sep 17, 2026
2	Groupe Ponticelli Frères	Indirect evidence	FranceHQ checked Sep 17, 2026	5,001-10,000	1,829 contacts →
	Indirect 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 17, 2026
3	EKIUM	Indirect evidence	Lyon Cedex 07, FranceHQ checked Sep 17, 2026	1,001-5,000	1,502 contacts →
	Indirect evidence “Welcome to Ekium!” Source: RevenueBase Database · checked Sep 17, 2026
4	Foure Lagadec	Indirect evidence	Le Havre, FranceHQ checked Sep 17, 2026	1,001-5,000	718 contacts →
	Indirect evidence “Building on its industrial heritage, its strong ties to the Snef Group, and its commitment to innovation, Fouré Lagadec continues to evolve to meet the technical and energy…” Source: RevenueBase Database · checked Sep 17, 2026
5	Doris Group	Partial evidence	Paris, FranceHQ checked Sep 17, 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 17, 2026
6	Dalkia Electrotechnics	Indirect evidence	Paris La Défense Cedex, FranceHQ checked Sep 17, 2026	1,001-5,000	347 contacts →
	Indirect evidence “Dalkia Electrotechnics entre dans une nouvelle ère et rejoint EDF business services!” Source: RevenueBase Database · checked Sep 17, 2026
7	Atlantic Ingénierie	Indirect evidence	Saint-herblain, FranceHQ checked Sep 17, 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 17, 2026
8	Mastergrid	Indirect evidence	Grenoble, FranceHQ checked Sep 17, 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 17, 2026
9	SOTEB	Indirect evidence	Lyon Aéroport Saint Exupéry, FranceHQ checked Sep 17, 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 17, 2026
10	Groupe Allez	Indirect evidence	Paris, FranceHQ checked Sep 17, 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 17, 2026
11	Entrepose Group	Indirect evidence	Colombes, FranceHQ checked Sep 17, 2026	1,001-5,000	240 contacts →
	Indirect 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 17, 2026
12	Orange Marine	Strong evidence	Paris, FranceHQ checked Sep 17, 2026	201-500	219 contacts →
	Strong evidence “Orange Marine, a wholly-owned subsidiary of the Orange Group, is a cable ship owner specialized in offshore work on submarine cables, from designing and engineering new projects…” Source: RevenueBase Database · checked Sep 17, 2026
13	Geocean	Indirect evidence	Cassis, FranceHQ checked Sep 17, 2026	n/a	216 contacts →
	Indirect evidence “GEOCEAN is a marine work contractor, based near Marseille, in the south of France, with 30 years experience worldwide.” Source: RevenueBase Database · checked Sep 17, 2026
14	Aventa	Indirect evidence	Paris, FranceHQ checked Sep 17, 2026	201-500	176 contacts →
	Indirect evidence “Aventa empowers the Marine Energy market with the sharpest skills to help design a bluer future.” Source: RevenueBase Database · checked Sep 17, 2026
15	BTB GES	Indirect evidence	Morangis, FranceHQ checked Sep 17, 2026	51-200	151 contacts →
	Indirect evidence “Filiale de GCC ENERGIE, BTB GES est spécialisé dans le génie électrique courants forts et courants faibles ainsi que dans les services.” Source: RevenueBase Database · checked Sep 17, 2026
16	Energie Côté SUD	Indirect evidence	La Farlède, FranceHQ checked Sep 17, 2026	201-500	101 contacts →
	Indirect evidence “Les électriciens du bâtiment” Source: RevenueBase Database · checked Sep 17, 2026
17	Côte SAS	Indirect evidence	Les Roches-de-condrieu, FranceHQ checked Sep 17, 2026	51-200	96 contacts →
	Indirect evidence “Basée au sud de Lyon, Côte conçoit, réalise et pilote des projets électriques à haute technicité depuis plus de 75 ans.” Source: RevenueBase Database · checked Sep 17, 2026
18	Etchart Energies	Indirect evidence	Anglet, FranceHQ checked Sep 17, 2026	51-200	87 contacts →
	Indirect evidence “Etchart Energies, anciennement Arrambide, est une filiale du groupe Etchart depuis plus de 10 ans maintenant.” Source: RevenueBase Database · checked Sep 17, 2026
19	Stat Marine	Partial evidence	Nîmes, FranceHQ checked Sep 17, 2026	51-200	81 contacts →
	Partial evidence “Created in 1983, STAT MARINE is an entrepreneurial and client-focused organisation; it has won its reputation not only for its practical approach to operational and engineering…” Source: RevenueBase Database · checked Sep 17, 2026
20	TVA Engineering	Partial evidence	Antony, FranceHQ checked Sep 17, 2026	51-200	73 contacts →
	Partial evidence “Since 1988, TVA Engineering member of TVA Group has carried its expertise into industrial applications of numerous sectors that are equally demanding in technical expertise…” Source: RevenueBase Database · checked Sep 17, 2026
21	LAFON	Indirect evidence	Tremblay-En-France, FranceHQ checked Sep 17, 2026	51-200	72 contacts →
	Indirect evidence “LAFON conçoit, installe et assure la maintenance de vos installations électriques courants forts et faibles.” Source: RevenueBase Database · checked Sep 17, 2026
22	ELO Énergie	Indirect evidence	Grandchamp Des Fontaines, FranceHQ checked Sep 17, 2026	51-200	65 contacts →
	Indirect evidence “ELO énergie est spécialiste de l'expertise, de l'ingénierie et de la construction d‘installations haute et très haute tension depuis 2006.” Source: RevenueBase Database · checked Sep 17, 2026
23	Enfrasys	Indirect evidence	Rillieux-la-pape, FranceHQ checked Sep 17, 2026	51-200	63 contacts →
	Indirect evidence “Depuis plus de 40 ans, Enfrasys propose de mettre à la disposition de des projets qui lui sont confiés, son expertise des métiers de - Conception : FMDS, Conception, Avant…” Source: RevenueBase Database · checked Sep 17, 2026
24	Euptech	Indirect evidence	Meylan, FranceHQ checked Sep 17, 2026	11-50	61 contacts →
	Indirect evidence “EUPTECH vous accompagne dans la mise en place de vos Travaux Neufs, Ingénierie, Rénovation & Maintenance, en France et à l’international.” Source: RevenueBase Database · checked Sep 17, 2026
25	Lautech	Indirect evidence	Lanester, FranceHQ checked Sep 17, 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 17, 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: offshore electrical engineering 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 offshore electrical engineering firms.
Partial evidence: Its own public description names part of offshore electrical engineering firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name offshore electrical engineering 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 659 offshore electrical engineering firms based in France

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Offshore electrical engineering firms based in France at a glance

As of Sep 17, 2026

32.4%Verified-email coverage

25.3Average contacts per company

1-10Median size (employees)

4.1%Largest-city concentration · Paris

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

329

11-50

244

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 659 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 offshore electrical engineering 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 “offshore electrical engineering 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 offshore electrical engineering 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 offshore electrical engineering 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, 5,394 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 17, 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.

Offshore electrical engineering firms by metro

Offshore electrical engineering firms in Paris27

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 offshore electrical engineering 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 offshore electrical engineering firms are there based in France?

RevenueBase identified 659 offshore electrical engineering 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?

Chantiers DE L'atlantique, headquartered in Saint-Nazaire, tops this list with the largest team on record.

Which city has the most offshore electrical engineering firms?

Paris leads with 27 headquartered companies, followed by Lyon (10) and Marseille (10).

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 5,394 verified decision-maker contacts tracked across these 659 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 17, 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.