Company lists · Data refreshed September 2026

Top 14 Solar thermal energy storage companies based in France

RevenueBase identified 50 solar thermal energy storage companies headquartered in France as of September 2026 and tracks 565 professional contacts across them, including 262 with verified work emails. Paris is the largest hub.

This list covers solar thermal energy storage 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 18, 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 18, 2026 86% judged on-target in blind review
50Companies
565Contacts tracked
262Verified emails
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The 14 largest solar thermal energy storage companies based in France

Ranked by team size
Top 14 of 50 solar thermal energy storage companies based in France, ranked by team size, largest first. Data refreshed Sep 18, 2026. RevenueBase Smart Search rates how each company's information relates to solar thermal energy storage 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidenceQuimper, FranceHQ checked Sep 18, 2026201-500174 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 18, 2026
2Partial evidenceClamart, FranceHQ checked Sep 18, 202651-20079 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 18, 2026
3Partial evidenceCugnaux, FranceHQ checked Sep 18, 202611-5042 contacts →

Partial evidence

“Water Horizon is developing highly innovative renewable energy solutions for industrial heating and cooling applications.”

Source: RevenueBase Database · checked Sep 18, 2026
4Partial evidenceChevigny-saint-sauveur, FranceHQ checked Sep 18, 202611-5025 contacts →

Partial evidence

“FAFCO has more than 40 years of Experience in Energy Management.”

Source: RevenueBase Database · checked Sep 18, 2026
5Partial evidenceParis, FranceHQ checked Sep 18, 202611-5015 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 18, 2026
6Partial evidenceChampagne-au-mont-d'or, FranceHQ checked Sep 18, 202611-5013 contacts →

Partial evidence

“3D Energy est un promoteur spécialisé dans le développement, la structuration, la construction et l’exploitation de projets solaires, couplés à d’autres technologies bas carbone.”

Source: RevenueBase Database · checked Sep 18, 2026
7Partial evidenceAubagne, FranceHQ checked Sep 18, 202651-20013 contacts →

Partial evidence

“GIORDANO R ENERGY, fort de plus de 40 années d'expertise en énergie solaire en France, se dévoue à fournir une source essentielle de bien-être énergétique à des populations à…”

Source: RevenueBase Database · checked Sep 18, 2026
8Partial evidenceVilleneuve D'ascq, FranceHQ checked Sep 18, 202611-509 contacts →

Partial evidence

Energies innovantes et durables.”

Source: RevenueBase Database · checked Sep 18, 2026
9Indirect evidenceSeignosse, FranceHQ checked Sep 18, 202611-508 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 18, 2026
10Indirect evidenceTalmont-saint-hilaire, FranceHQ checked Sep 18, 20261-107 contacts →

Indirect evidence

“Solarem distribue des solutions solaires hautes performances.”

Source: RevenueBase Database · checked Sep 18, 2026
11Indirect evidenceRueil-malmaison, FranceHQ checked Sep 18, 20261-106 contacts →

Indirect evidence

“STOLECT: Technology and services for decarbonisation.”

Source: RevenueBase Database · checked Sep 18, 2026
12Strong evidencePortet-sur-garonne, FranceHQ checked Sep 18, 20261-105 contacts →

Strong evidence

ENERGIEPAC Group accompagne depuis plus de 18 ans les professionnels dans leur transition énergétique grâce à des solutions thermodynamiques et thermosolaires performantes…”

Source: RevenueBase Database · checked Sep 18, 2026
13Partial evidenceNeyron, FranceHQ checked Sep 18, 20261-104 contacts →

Partial evidence

“Ausar Energy aims to introduce new energy solutions in Africa and to foster off-grid production.”

Source: RevenueBase Database · checked Sep 18, 2026
14Partial evidenceTulle, FranceHQ checked Sep 18, 20261-101 contacts →

Partial evidence

“Notre technologie brevetée de séquençage hydraulique adaptée au solaire thermique permet de réduire a minima de -50% les consommations annuelles en chauffage et eau chaude des…”

Source: RevenueBase Database · checked Sep 18, 2026

Showing 14 of 50 solar thermal energy storage companies based in France

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Solar thermal energy storage companies based in France at a glance

As of Sep 18, 2026
46.4%Verified-email coverage
11.3Average contacts per company
1-10Median size (employees)
10.0%Largest-city concentration · Paris
Sep 18, 2026Page data refreshed

Companies by employee count

1-10
32
11-50
15
51-200
2
201-500
1

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 50 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 solar thermal energy storage 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 “solar thermal energy storage 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 solar thermal energy storage 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 solar thermal energy storage 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, 262 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 18, 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 solar thermal energy storage 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 solar thermal energy storage companies are there based in France?

RevenueBase identified 50 solar thermal energy storage 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?

Entech Smart Energies, headquartered in Quimper, tops this list with the largest team on record.

Which city has the most solar thermal energy storage companies?

Paris leads with 5 headquartered companies, followed by Aubagne (2) and Toulouse (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 262 verified decision-maker contacts tracked across these 50 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 18, 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.