Company lists · Data refreshed September 2026

Top 25 Energy storage system companies based in France

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

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 88 companies tracked

RevenueBase identified 88 energy storage system companies headquartered in France as of September 2026 and tracks 4,441 professional contacts across them, including 1,947 with verified work emails. Paris is the largest hub.

This list covers energy storage system companies 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

88Companies

4,441Contacts tracked

1,947Verified emails

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The 25 largest energy storage system companies based in France

Ranked by team size

Top 25 of 88 energy storage system companies 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 system companies: 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	SAFT	Indirect evidence	Levallois-perret, FranceHQ checked Sep 16, 2026	1,001-5,000	2,322 contacts →
	Indirect evidence “Saft specializes in advanced technology battery solutions for industry, from the design and development to the production, customization and service provision.” Source: RevenueBase Database · checked Sep 16, 2026
2	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
3	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
4	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
5	GCK	Strong evidence	Lempdes, FranceHQ checked Sep 16, 2026	201-500	40 contacts →
	Strong evidence “Green Corp Konnection is an ecosystem of industrial companies at the forefront of the sustainable energy revolution across the storage and supply of green energy and e-mobility.” Source: RevenueBase Database · checked Sep 16, 2026
6	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
7	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
8	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
9	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
10	K-Motors	Partial evidence	Peynier, FranceHQ checked Sep 16, 2026	1-10	22 contacts →
	Partial evidence “Efficiency is a key word when describing the challenges of increasing renewable and emissions free energy in environment.” Source: RevenueBase Database · checked Sep 16, 2026
11	Easyli Advanced Battery Systems	Strong evidence	Chasseneuil-du-poitou, FranceHQ checked Sep 16, 2026	11-50	21 contacts →
	Strong evidence “easyLi designs, manufactures, sells and maintains tailor-made Lithium-ion batteries and turnkey energy storage systems.” Source: RevenueBase Database · checked Sep 16, 2026
12	Groupe Startec Energy	Partial evidence	Mérignac, FranceHQ checked Sep 16, 2026	51-200	21 contacts →
	Partial evidence “With over 25 years' experience at the heart of the energy transition, the Startec Energy group designs and supplies technologies to support manufacturers (OEMs and suppliers) in…” Source: RevenueBase Database · checked Sep 16, 2026
13	Eclipse	Indirect evidence	Paris, FranceHQ checked Sep 16, 2026	11-50	20 contacts →
	Indirect evidence “Eclipse develops and optimizes utility scale BESS to provide TSOs and IPPs with the flexibility required for a swift integration of renewables in the mix, while maximizing profit…” Source: RevenueBase Database · checked Sep 16, 2026
14	Wattalps	Partial evidence	Moirans, FranceHQ checked Sep 16, 2026	11-50	19 contacts →
	Partial evidence “Our mission: we support manufacturers and system integrators in successfully electrifying their most demanding machines by delivering high-performance & safe battery systems that…” Source: RevenueBase Database · checked Sep 16, 2026
15	Pellenc Energy	Partial evidence	Pertuis, FranceHQ checked Sep 16, 2026	11-50	19 contacts →
	Partial evidence “Pellenc Energy est une entreprise de recherche et d’innovation spécialisée dans les technologies de stockage d’énergie.” Source: RevenueBase Database · checked Sep 16, 2026
16	R&s	Indirect evidence	Paris, FranceHQ checked Sep 16, 2026	11-50	17 contacts →
	Indirect evidence “R&S développe des parcs de production d'énergie renouvelable (photovoltaïque, éolien) et des moyens de stockage massif d'électricité indispensables à une transition énergétique…” Source: RevenueBase Database · checked Sep 16, 2026
17	EPYR	Partial evidence	Paris, FranceHQ checked Sep 16, 2026	11-50	15 contacts →
	Partial evidence “Industrial heat represents 25% of global energy consumption and remains one of the hardest sectors to decarbonize, with 80% still reliant on fossil fuels.” Source: RevenueBase Database · checked Sep 16, 2026
18	Storio Energy	Partial evidence	Aulnay-sous-bois, FranceHQ checked Sep 16, 2026	11-50	14 contacts →
	Partial evidence “Storio Energy turns the volatility of electricity markets into a competitive advantage for France's largest energy consumers.” Source: RevenueBase Database · checked Sep 16, 2026
19	One-Sixone	Strong evidence	Sainte-luce-sur-loire, FranceHQ checked Sep 16, 2026	1-10	12 contacts →
	Strong evidence “One-sixone brings to the energy sector its technological expertise in energy storage systems and intervenes when existing solutions do not meet the needs and requirements of its…” Source: RevenueBase Database · checked Sep 16, 2026
20	GCK Energy	Strong evidence	Saint-pierre-d'albigny, FranceHQ checked Sep 16, 2026	11-50	11 contacts →
	Strong evidence “Using a fully autonomous storage energy system, GCK Energy, in collaboration with partners Socomec & IBS, have designed a mobile energy solution to power festivals, events…” Source: RevenueBase Database · checked Sep 16, 2026
21	Sylfen	Partial evidence	Le Cheylas, FranceHQ checked Sep 16, 2026	11-50	11 contacts →
	Partial evidence “Energy is at the heart of human civilization, and its evolutions.” Source: RevenueBase Database · checked Sep 16, 2026
22	Fractal Energy	Strong evidence	Tours, FranceHQ checked Sep 16, 2026	1-10	9 contacts →
	Strong evidence “At Fractal Energy, we combine smart storage (BESS) with a cutting-edge Virtual Power Plant (VPP) to revolutionize demand load management.” Source: RevenueBase Database · checked Sep 16, 2026
23	Ecotechnics	Partial evidence	Villeneuve D'ascq, FranceHQ checked Sep 16, 2026	11-50	9 contacts →
	Partial evidence “Energies innovantes et durables.” Source: RevenueBase Database · checked Sep 16, 2026
24	We SUN	Indirect evidence	Seignosse, FranceHQ checked Sep 16, 2026	11-50	8 contacts →
	Indirect evidence “We Sun, basée à Seignosse (40), en Nouvelle Aquitaine, est une entreprise spécialisée dans le secteur de l’énergie.” Source: RevenueBase Database · checked Sep 16, 2026
25	Olenergies	Partial evidence	Bagnolet, FranceHQ checked Sep 16, 2026	11-50	8 contacts →
	Partial evidence “Olenergies designs powerful, long-life, smart and highly secured lithium batteries to - Store energy from renewables (solar, wind.)- Power supply vehicles (marine, automotive…)-…” 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 system companies. 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 system companies.
Partial evidence: Its own public description names part of energy storage system companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy storage system companies. 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 88 energy storage system companies based in France

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Energy storage system companies based in France at a glance

As of Sep 16, 2026

43.8%Verified-email coverage

50.5Average contacts per company

1-10Median size (employees)

14.8%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 88 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 system companies, 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 system companies”. 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 system companies), 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 system companies, 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, 1,947 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 system companies, 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 system companies are there based in France?

RevenueBase identified 88 energy storage system companies 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?

SAFT, headquartered in Levallois-Perret, tops this list with the largest team on record.

Which city has the most energy storage system companies?

Paris leads with 13 headquartered companies, followed by Fargues (2) 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 1,947 verified decision-maker contacts tracked across these 88 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.