Company lists · Data refreshed September 2026

Top 25 Grid integration system designers based in France

Name: Grid integration system designers based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 431 companies tracked

RevenueBase identified 431 grid integration system designers headquartered in France as of September 2026 and tracks 17,996 professional contacts across them, including 2,840 with verified work emails. Paris is the largest hub.

This list covers grid integration system designers 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

431Companies

17,996Contacts tracked

2,840Verified emails

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The 25 largest grid integration system designers based in France

Ranked by team size

Top 25 of 431 grid integration system designers 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 grid integration system designers: 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	Omexom	Indirect evidence	Nanterre, FranceHQ checked Sep 19, 2026	5,001-10,000	1,903 contacts →
	Indirect evidence “With today's global energy sector undergoing constant change, Omexom works with its clients in delivering on the promises of the energy transition.” Source: RevenueBase Database · checked Sep 19, 2026
2	AKUO	Indirect evidence	Paris, FranceHQ checked Sep 19, 2026	201-500	525 contacts →
	Indirect evidence “Akuo est spécialisé dans la mise en œuvre d’unités de production d’électricité à partir de ressources renouvelables, en particulier le solaire, l'éolien et le stockage.” Source: RevenueBase Database · checked Sep 19, 2026
3	Valeco	Indirect evidence	Montpellier, FranceHQ checked Sep 19, 2026	201-500	399 contacts →
	Indirect evidence “Valeco est un acteur majeur des énergies renouvelables depuis plus de 30 ans.” Source: RevenueBase Database · checked Sep 19, 2026
4	Energy Pool	Strong evidence	Le Bourget Du Lac, FranceHQ checked Sep 19, 2026	51-200	300 contacts →
	Strong evidence “At the centre of the smart grid revolution, Energy Pool manages and optimizes complex systems (energy consumption of industrial sites, decentralized production, renewable…” Source: RevenueBase Database · checked Sep 19, 2026
5	Apex Energies	Indirect evidence	Montpellier, FranceHQ checked Sep 19, 2026	201-500	213 contacts →
	Indirect evidence “Depuis plus de 30 ans, Apex Energies transforme le solaire en véritable levier économique et stratégique pour les entreprises, les collectivités et les acteurs fonciers.” Source: RevenueBase Database · checked Sep 19, 2026
6	Entech Smart Energies	Strong evidence	Quimper, FranceHQ checked Sep 19, 2026	201-500	174 contacts →
	Strong evidence “Entech develops solar production, storage, and electricity conversion solutions controlled by smart software systems that promote the increasing and profitable integration of…” Source: RevenueBase Database · checked Sep 19, 2026
7	Vergnet	Indirect evidence	Ormes, FranceHQ checked Sep 19, 2026	51-200	101 contacts →
	Indirect evidence “Le Groupe Vergnet, “créateur vertueux d’indépendance énergétique depuis 1989”, n’a de cesse depuis son origine de permettre à ses clients de maitriser leur production d’énergie…” Source: RevenueBase Database · checked Sep 19, 2026
8	Tecsol	Indirect evidence	Perpignan, FranceHQ checked Sep 19, 2026	11-50	89 contacts →
	Indirect evidence “Bureau d'études solaires indépendant” Source: RevenueBase Database · checked Sep 19, 2026
9	Arnest	Indirect evidence	Puteaux, FranceHQ checked Sep 19, 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 19, 2026
10	Sunelis	Indirect evidence	Fretin, FranceHQ checked Sep 19, 2026	11-50	71 contacts →
	Indirect evidence “Sunelis, entreprise spécialisée dans le solaire photovoltaïque, conçoit, installe et assure la maintenance et le nettoyage de centrales solaires photovoltaïques pour tous types de…” Source: RevenueBase Database · checked Sep 19, 2026
11	NED Nouvelles Energies Distribution	Indirect evidence	Chaponost, FranceHQ checked Sep 19, 2026	51-200	66 contacts →
	Indirect evidence “NED, expert en distribution de solutions en énergies renouvelables.” Source: RevenueBase Database · checked Sep 19, 2026
12	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
13	EGA Électricités, Ingénierie & Applications	Indirect evidence	Corbas, FranceHQ checked Sep 19, 2026	51-200	58 contacts →
	Indirect evidence “Spécialisé dans le génie électrique, courants forts, courants faibles, dans le génie climatique et les énergies renouvelables, EGA intervient principalement pour le secteur…” Source: RevenueBase Database · checked Sep 19, 2026
14	Free Energie	Indirect evidence	Lyon, FranceHQ checked Sep 19, 2026	51-200	58 contacts →
	Indirect evidence “Free Energie – Votre partenaire en transition énergétique Chez Free Energie, nous accompagnons les particuliers et les professionnels vers une autonomie énergétique durable et…” Source: RevenueBase Database · checked Sep 19, 2026
15	Ecogreenenergy	Indirect evidence	Strasbourg, FranceHQ checked Sep 19, 2026	51-200	54 contacts →
	Indirect evidence “Et si l’énergie que vous perdez aujourd’hui devenait votre plus grand levier de compétitivité?” Source: RevenueBase Database · checked Sep 19, 2026
16	Optima Énergie	Indirect evidence	Plescop, FranceHQ checked Sep 19, 2026	11-50	54 contacts →
	Indirect evidence “Créée en 2016, Optima Énergie est un cabinet de #conseil en #énergie basé en #Bretagne.” Source: RevenueBase Database · checked Sep 19, 2026
17	Innovation Energie Développement IED	Indirect evidence	Métropole De Lyon, FranceHQ checked Sep 19, 2026	51-200	54 contacts →
	Indirect evidence “Innovation Energy Development - IED - is a consulting and engineering company engaged in international cooperation since 1988.” Source: RevenueBase Database · checked Sep 19, 2026
18	Domuneo	Indirect evidence	Montpellier, FranceHQ checked Sep 19, 2026	11-50	46 contacts →
	Indirect evidence “Chez Domuneo, nous accompagnons votre entreprise et les collectivités dans leur transition vers des solutions énergétiques solaires durables et rentables.” Source: RevenueBase Database · checked Sep 19, 2026
19	ÉS Services Énergétiques	Indirect evidence	Strasbourg, FranceHQ checked Sep 19, 2026	51-200	45 contacts →
	Indirect evidence “ÉS Services Énergétiques, c’est l’alliance de l’ancrage territorial et du savoir-faire industriel, avec une structure locale, agile, innovante et des outils à la mesure de projets…” Source: RevenueBase Database · checked Sep 19, 2026
20	ELYS	Indirect evidence	Nimes, FranceHQ checked Sep 19, 2026	11-50	44 contacts →
	Indirect evidence “ELYS, ingénierie indépendante pour la construction de parcs éoliens, de centrales solaires PV, BESS et de postes HTB privés.” Source: RevenueBase Database · checked Sep 19, 2026
21	Acteam ENR	Indirect evidence	Toulouse, FranceHQ checked Sep 19, 2026	11-50	43 contacts →
	Indirect evidence “Société d'Ingénierie, Conseil et Construction, ACTEAM ENR accompagne - Industriels, Promoteurs, Collectivités et Agriculteurs dans la mise en œuvre de projet solaire- Maitre…” Source: RevenueBase Database · checked Sep 19, 2026
22	Best Energies	Partial evidence	Montreuil, FranceHQ checked Sep 19, 2026	11-50	42 contacts →
	Partial evidence “Best Energies is an engineering firm leader in energy performance and savings, specialized in renewable energies as well as conventional, for heating and air conditioning systems.” Source: RevenueBase Database · checked Sep 19, 2026
23	AXYS	Indirect evidence	Courtabœuf, FranceHQ checked Sep 19, 2026	11-50	41 contacts →
	Indirect evidence “L’équipe AXYS, forte de son expérience dans le domaine, met en application depuis plus de 25 ans, l’ensemble des nouvelles technologies applicables aux équipements techniques des…” Source: RevenueBase Database · checked Sep 19, 2026
24	Cyrisea	Partial evidence	Carquefou, FranceHQ checked Sep 19, 2026	11-50	38 contacts →
	Partial evidence “CYRISEA accompagne ses clients dans la conception et la mise en œuvre de Systèmes Intelligents de Gestion d’Energie - Gestion Technique et Énergétique des Bâtiments (GTEB)-…” Source: RevenueBase Database · checked Sep 19, 2026
25	Quénéa	Indirect evidence	Carhaix Plouguer, FranceHQ checked Sep 19, 2026	51-200	37 contacts →
	Indirect evidence “Quénéa Energies Renouvelables est une entreprise bretonne spécialisée depuis 30 ans dans la conception, l'installation et la maintenance de centrales solaires photovoltaïques.” 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: grid integration system designers. 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 grid integration system designers.
Partial evidence: Its own public description names part of grid integration system designers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name grid integration system designers. 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 431 grid integration system designers based in France

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Grid integration system designers based in France at a glance

As of Sep 19, 2026

15.8%Verified-email coverage

41.8Average contacts per company

1-10Median size (employees)

7.2%Largest-city concentration · Paris

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

244

11-50

140

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 431 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 grid integration system designers, 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 “grid integration system designers”. 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 grid integration system designers), 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 grid integration system designers, 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, 2,840 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.

Grid integration system designers by metro

Grid integration system designers in Paris31

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 grid integration system designers, 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 grid integration system designers are there based in France?

RevenueBase identified 431 grid integration system designers 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?

Omexom, headquartered in Nanterre, tops this list with the largest team on record.

Which city has the most grid integration system designers?

Paris leads with 31 headquartered companies, followed by Lyon (14) and Toulouse (12).

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 2,840 verified decision-maker contacts tracked across these 431 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.