Company lists · Data refreshed September 2026

Top 25 Energy storage developers based in France

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

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 119 companies tracked

RevenueBase identified 119 energy storage developers headquartered in France as of September 2026 and tracks 5,163 professional contacts across them, including 2,758 with verified work emails. Paris is the largest hub.

This list covers energy storage developers 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

119Companies

5,163Contacts tracked

2,758Verified emails

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The 25 largest energy storage developers based in France

Ranked by team size

Top 25 of 119 energy storage developers 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 storage developers: 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	Exide Group	Indirect evidence	Gennevilliers, FranceHQ checked Sep 16, 2026	5,001-10,000	1,077 contacts →
	Indirect evidence “Exide Technologies in EMEA & Asia-Pacific is a standalone company.” Source: RevenueBase Database · checked Sep 16, 2026
2	Storengy - Engie	Partial evidence	La Garenne-colombes, FranceHQ checked Sep 16, 2026	1,001-5,000	770 contacts →
	Partial evidence “Storengy, an ENGIE subsidiary, is one of the world leaders in underground natural gas storage.” Source: RevenueBase Database · checked Sep 16, 2026
3	AKUO	Indirect evidence	Paris, FranceHQ checked Sep 16, 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 16, 2026
4	REDEN	Strong evidence	Roquefort, FranceHQ checked Sep 16, 2026	201-500	260 contacts →
	Strong evidence “REDEN is an independent power producer active across the entire solar and energy storage value chain: development, financing, construction, and operations.” Source: RevenueBase Database · checked Sep 16, 2026
5	Photosol	Indirect evidence	Paris, FranceHQ checked Sep 16, 2026	201-500	242 contacts →
	Indirect evidence “Fondé en 2008, Photosol est l’un des premiers producteurs français d’électricité photovoltaïque.” Source: RevenueBase Database · checked Sep 16, 2026
6	Agregio Solutions	Indirect evidence	Courbevoie, FranceHQ checked Sep 16, 2026	51-200	202 contacts →
	Indirect evidence “Née en 2023 de la fusion d’Agregio et de Store & Forecast, filiales 100% d’EDF, Agregio Solutions est le leader de l’agrégation en France et un acteur reconnu sur les marchés des…” Source: RevenueBase Database · checked Sep 16, 2026
7	Qair Group	Partial evidence	Paris, FranceHQ checked Sep 16, 2026	501-1,000	200 contacts →
	Partial evidence “Qair is an independent renewable energy company developing, financing, building, and operating solar, onshore and offshore wind, hydroelectric, tidal energy, waste-to-energy…” Source: RevenueBase Database · checked Sep 16, 2026
8	Entech Smart Energies	Partial evidence	Quimper, FranceHQ checked Sep 16, 2026	201-500	174 contacts →
	Partial 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 16, 2026
9	NW	Strong evidence	Paris, FranceHQ checked Sep 16, 2026	51-200	173 contacts →
	Strong evidence “Acteur innovant du domaine de l’énergie, NW est leader français et finlandais du BESS (Battery Energy Storage System).” Source: RevenueBase Database · checked Sep 16, 2026
10	Corsica Sole	Indirect evidence	Corse, FranceHQ checked Sep 16, 2026	51-200	163 contacts →
	Indirect evidence “CORSICA SOLE est un producteur indépendant d'énergie solaire et leader du stockage d’énergie en France.” Source: RevenueBase Database · checked Sep 16, 2026
11	Nidec ASI S.A.S	Strong evidence	Roche La Molière, FranceHQ checked Sep 16, 2026	51-200	133 contacts →
	Strong evidence “Nidec ASI S.A.S, based near Saint-Etienne (42) in France, is a company that designs, manufactures and installs Battery Energy Storage Systems.” Source: RevenueBase Database · checked Sep 16, 2026
12	Smart Energies	Partial evidence	Paris, FranceHQ checked Sep 16, 2026	51-200	92 contacts →
	Partial evidence “Smart Energies is an Independent Power Producer (IPP) specialized in the development, financing, construction and operation of renewable projects across Europe.” Source: RevenueBase Database · checked Sep 16, 2026
13	Celsius Energy	Partial evidence	Clamart, FranceHQ checked Sep 16, 2026	51-200	79 contacts →
	Partial evidence “The Earth can accumulate summer heat and reuse it in the winter, so energy can be stored from season to season.” Source: RevenueBase Database · checked Sep 16, 2026
14	Verso Energy	Partial evidence	Paris, FranceHQ checked Sep 16, 2026	11-50	73 contacts →
	Partial evidence “Verso Energy est spécialisée dans le développement, l’ingénierie, le financement, la construction et l’exploitation d’installations de production d’énergies renouvelables…” Source: RevenueBase Database · checked Sep 16, 2026
15	Melvan SAS	Indirect evidence	Orléans, FranceHQ checked Sep 16, 2026	11-50	59 contacts →
	Indirect evidence “Nouvel acteur indépendant de la production d'énergie renouvelable en France, MELVAN est née de l’association de fondateurs passionnés et engagés depuis plusieurs dizaines d’années…” Source: RevenueBase Database · checked Sep 16, 2026
16	ZE Energy	Partial evidence	Paris, FranceHQ checked Sep 16, 2026	11-50	51 contacts →
	Partial evidence “Producteur indépendant d’énergie renouvelable, ZE Energy vient révolutionner le secteur des énergies renouvelables avec sa solution de centrales solaires hybrides combinant…” Source: RevenueBase Database · checked Sep 16, 2026
17	Water Horizon	Partial evidence	Cugnaux, FranceHQ checked Sep 16, 2026	11-50	42 contacts →
	Partial evidence “Water Horizon is developing highly innovative renewable energy solutions for industrial heating and cooling applications.” Source: RevenueBase Database · checked Sep 16, 2026
18	Clean Horizon	Strong evidence	Paris, FranceHQ checked Sep 16, 2026	11-50	39 contacts →
	Strong evidence “Active worldwide since 2009, Clean Horizon is 100% dedicated to energy storage.” Source: RevenueBase Database · checked Sep 16, 2026
19	Geolith	Strong evidence	Orsay, FranceHQ checked Sep 16, 2026	11-50	33 contacts →
	Strong evidence “GeoLith is committed to enabling sufficient Battery Energy Storage System capacity, offering technology that allows local, sustainable lithium production.Whether for power…” Source: RevenueBase Database · checked Sep 16, 2026
20	Decade Energy	Strong evidence	Paris, FranceHQ checked Sep 16, 2026	11-50	30 contacts →
	Strong evidence “Decade Energy develops energy storage, charging, and software solutions that secures power for electric fleets at the lowest possible cost.” Source: RevenueBase Database · checked Sep 16, 2026
21	Powidian Energy	Partial evidence	La Ville-aux-dames, FranceHQ checked Sep 16, 2026	11-50	29 contacts →
	Partial evidence “Société pionnière des solutions de production et de stockage de l’énergie produite via hydrogène « vert », PowiDian Energy œuvre pour la transition écologique des territoires…” Source: RevenueBase Database · checked Sep 16, 2026
22	Nhoa Group	Strong evidence	Paris, FranceHQ checked Sep 16, 2026	501-1,000	27 contacts →
	Strong evidence “NHOA Energy and Atlante continue their mission to accelerate the energy transition as part of TCC Group Holdings, NHOA Energy through utility-scale battery energy storage…” Source: RevenueBase Database · checked Sep 16, 2026
23	Tiamat Energy	Strong evidence	Amiens, FranceHQ checked Sep 16, 2026	11-50	27 contacts →
	Strong evidence “Spun off from the CEA/CNRS late 2017, TIAMAT Energy is a start-up that designs, develops and produces innovative solutions for energy storage applications.” Source: RevenueBase Database · checked Sep 16, 2026
24	Fafco SAS	Partial evidence	Chevigny-saint-sauveur, FranceHQ checked Sep 16, 2026	11-50	25 contacts →
	Partial evidence “FAFCO has more than 40 years of Experience in Energy Management.” Source: RevenueBase Database · checked Sep 16, 2026
25	Incidences	Indirect evidence	Montpellier, FranceHQ checked Sep 16, 2026	11-50	24 contacts →
	Indirect evidence “Incidences est un producteur d’électricité verte à partir de ressources renouvelables sur le territoire national et ultra-marins.” 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 storage developers. 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 storage developers.
Partial evidence: Its own public description names part of energy storage developers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy storage developers. 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 119 energy storage developers based in France

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Energy storage developers based in France at a glance

As of Sep 16, 2026

53.4%Verified-email coverage

43.4Average contacts per company

1-10Median size (employees)

19.3%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

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 119 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 storage developers, 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 storage developers”. 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 storage developers), 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 storage developers, 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, 2,758 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 storage developers, 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 storage developers are there based in France?

RevenueBase identified 119 energy storage developers 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?

Exide Group, headquartered in Gennevilliers, tops this list with the largest team on record.

Which city has the most energy storage developers?

Paris leads with 23 headquartered companies, followed by Montpellier (3) and Lyon (2).

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 2,758 verified decision-maker contacts tracked across these 119 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.