Company lists · Data refreshed September 2026

Top 25 Solar performance optimization services based in France

Name: Solar performance optimization services based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 18, 2026 361 companies tracked

RevenueBase identified 361 solar performance optimization services headquartered in France as of September 2026 and tracks 2,196 professional contacts across them, including 578 with verified work emails. Paris is the largest hub.

This list covers solar performance optimization services 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

361Companies

2,196Contacts tracked

578Verified emails

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The 25 largest solar performance optimization services based in France

Ranked by team size

Top 25 of 361 solar performance optimization services 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 performance optimization services: 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	Isowatt	Indirect evidence	Dardilly, FranceHQ checked Sep 18, 2026	11-50	94 contacts →
	Indirect evidence “ISOWATT, INSTALLATEUR DE PANNEAUX SOLAIRES PHOTOVOLTAÏQUES DEPUIS 18 ANS Nous avons fait du solaire photovoltaïque, notre cœur de métier et de compétences!” Source: RevenueBase Database · checked Sep 18, 2026
2	Tecsol	Indirect evidence	Perpignan, FranceHQ checked Sep 18, 2026	11-50	89 contacts →
	Indirect evidence “Bureau d'études solaires indépendant” Source: RevenueBase Database · checked Sep 18, 2026
3	Diméo Énergie	Indirect evidence	Bron, FranceHQ checked Sep 18, 2026	51-200	84 contacts →
	Indirect evidence “DIMEO Energie, la garantie du solaire sur mesure pour les professionnels 🤝 Notre positionnement - Expertise - Conceptions sur mesure - Projets clé en main - Garanties Nos…” Source: RevenueBase Database · checked Sep 18, 2026
4	Agriwatt	Indirect evidence	Seclin, FranceHQ checked Sep 18, 2026	51-200	64 contacts →
	Indirect evidence “Agriwatt fait partie de Générations Renouvelables qui est un groupe français indépendant, spécialiste des énergies renouvelables et du génie électrique tertiaire, qui regroupe les…” Source: RevenueBase Database · checked Sep 18, 2026
5	Monabee	Indirect evidence	Dardilly, FranceHQ checked Sep 18, 2026	51-200	50 contacts →
	Indirect evidence “72% des chefs d’entreprises disent être impactés fortement par la hausse des coûts de l’énergie.” Source: RevenueBase Database · checked Sep 18, 2026
6	Skyray	Partial evidence	Lyon, FranceHQ checked Sep 18, 2026	11-50	47 contacts →
	Partial evidence “At Skyray we appreciate that rapid growth in solar PV is stretching internal resources, making you question your ability to deliver.” Source: RevenueBase Database · checked Sep 18, 2026
7	Domuneo	Indirect evidence	Montpellier, FranceHQ checked Sep 18, 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 18, 2026
8	Photovolt	Indirect evidence	Thouaré-sur-loire, FranceHQ checked Sep 18, 2026	11-50	30 contacts →
	Indirect evidence “Photovolt œuvre depuis 2006 auprès de particuliers et professionnels en tant que concepteur et installateur de centrales solaires : Pose de panneaux solaires en toiture…” Source: RevenueBase Database · checked Sep 18, 2026
9	AMK Energy	Indirect evidence	Toulouse, FranceHQ checked Sep 18, 2026	51-200	28 contacts →
	Indirect evidence “AMK Energy est une entreprise dynamique spécialisée dans les solutions clé en main.” Source: RevenueBase Database · checked Sep 18, 2026
10	Rhône Solaire PRO	Partial evidence	Décines-charpieu, FranceHQ checked Sep 18, 2026	11-50	23 contacts →
	Partial evidence “Votre partenaire solaire de confiance, où l'humain et la performance sont au cœur de notre mission” Source: RevenueBase Database · checked Sep 18, 2026
11	LIBOW	Indirect evidence	Montpellier, FranceHQ checked Sep 18, 2026	11-50	22 contacts →
	Indirect evidence “Libow est une start-up spécialisée dans l'autoconsommation solaire durable grâce à des produits et des installations de qualité.” Source: RevenueBase Database · checked Sep 18, 2026
12	Vergnaud	Indirect evidence	Biron, FranceHQ checked Sep 18, 2026	11-50	20 contacts →
	Indirect evidence “VERGNAUD vous conseille et vous accompagne dans vos projets photovoltaïques, avec une équipe de collaborateurs soigneux et compétents pour réaliser un travail de qualité, selon…” Source: RevenueBase Database · checked Sep 18, 2026
13	Symphonics	Indirect evidence	Tours, FranceHQ checked Sep 18, 2026	1-10	19 contacts →
	Indirect evidence “Symphonics une offre innovante de services énergétiques pour les particuliers et les professionnels.” Source: RevenueBase Database · checked Sep 18, 2026
14	Kilowattsol	Partial evidence	Lyon, FranceHQ checked Sep 18, 2026	11-50	18 contacts →
	Partial evidence “An investment in knowledge always pays the best interest” – Benjamin Franklin kiloWattsol is a leading independent consultancy and technical advisory in the field of solar energy.” Source: RevenueBase Database · checked Sep 18, 2026
15	Mobasolar	Indirect evidence	Wolfgantzen, FranceHQ checked Sep 18, 2026	11-50	18 contacts →
	Indirect evidence “Depuis plus de 15 ans, nous accompagnons nos clients dans le domaine de l'énergie photovoltaïque avec un savoir-faire qui n’est plus à prouver.” Source: RevenueBase Database · checked Sep 18, 2026
16	Tersun Energies Renouvelables	Indirect evidence	Castelculier, FranceHQ checked Sep 18, 2026	11-50	16 contacts →
	Indirect evidence “Tersun est le spécialiste de l’énergie renouvelable dans votre région, depuis 2014.” Source: RevenueBase Database · checked Sep 18, 2026
17	E2s	Indirect evidence	Saint-cyr-sur-mer, FranceHQ checked Sep 18, 2026	11-50	16 contacts →
	Indirect evidence “Chez E2S, nous proposons des solutions énergétiques sur mesure, parfaitement adaptées à chaque projet, résidentiel ou tertiaire.” Source: RevenueBase Database · checked Sep 18, 2026
18	KBE Energy	Partial evidence	Serres-castet, FranceHQ checked Sep 18, 2026	11-50	16 contacts →
	Partial evidence “A key player in the energy transition for nearly 20 years, KBE Energy is an independent service company specializing in photovoltaic solar power: project development for…” Source: RevenueBase Database · checked Sep 18, 2026
19	SOG Solar	Partial evidence	La Roche-sur-yon, FranceHQ checked Sep 18, 2026	1-10	15 contacts →
	Partial evidence “Cabinet d’ingénierie et de conseil en énergie solaire, SOG SOLAR accompagne les entreprises, collectivités, investisseurs et producteurs à chacune des étapes de leurs projets…” Source: RevenueBase Database · checked Sep 18, 2026
20	Artyseo	Indirect evidence	Beaucouzé, FranceHQ checked Sep 18, 2026	11-50	15 contacts →
	Indirect evidence “Artyseo, c’est une belle bande de.” Source: RevenueBase Database · checked Sep 18, 2026
21	Lumélio	Indirect evidence	Cuincy, FranceHQ checked Sep 18, 2026	11-50	15 contacts →
	Indirect evidence “Lumélio est spécialisée dans la rénovation énergétique globale et l’autoconsommation solaire, avec un objectif clair : vous aider à reprendre le contrôle de votre énergie.” Source: RevenueBase Database · checked Sep 18, 2026
22	Solargie	Indirect evidence	La Roche-sur-yon, FranceHQ checked Sep 18, 2026	11-50	15 contacts →
	Indirect evidence “Solargie, fondée en 2003, est une entreprise spécialisée dans l'installation de panneaux solaires photovoltaïques et de bornes de recharge pour véhicules électriques, offrant des…” Source: RevenueBase Database · checked Sep 18, 2026
23	FVS Conseils	Indirect evidence	Petit-couronne, FranceHQ checked Sep 18, 2026	11-50	14 contacts →
	Indirect evidence “FVS Conseils – Expert en énergie solaire et solutions photovoltaïques Créée en 2016 à Rouen par Fabien Cocart et Thibault Martel, FVS Conseils s’appuie sur plus de 15 années…” Source: RevenueBase Database · checked Sep 18, 2026
24	Heliocity	Strong evidence	Grenoble, FranceHQ checked Sep 18, 2026	1-10	14 contacts →
	Strong evidence “The performance of solar energy systems is strongly affected by the environment in which they operate, and the challenges to maintenance it represents.” Source: RevenueBase Database · checked Sep 18, 2026
25	3d Energy	Indirect evidence	Champagne-au-mont-d'or, FranceHQ checked Sep 18, 2026	11-50	13 contacts →
	Indirect 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

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: solar performance optimization services. 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 solar performance optimization services.
Partial evidence: Its own public description names part of solar performance optimization services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name solar performance optimization services. 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 361 solar performance optimization services based in France

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Solar performance optimization services based in France at a glance

As of Sep 18, 2026

26.3%Verified-email coverage

6.1Average contacts per company

1-10Median size (employees)

4.2%Largest-city concentration · Paris

Sep 18, 2026Page data refreshed

Companies by employee count

1-10

243

11-50

101

51-200

201-500

501-1,000

1,001-5,000

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 361 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 performance optimization services, 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 performance optimization services”. 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 performance optimization services), 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 performance optimization services, 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, 578 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 performance optimization services, 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 performance optimization services are there based in France?

RevenueBase identified 361 solar performance optimization services 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?

Isowatt, headquartered in Dardilly, tops this list with the largest team on record.

Which city has the most solar performance optimization services?

Paris leads with 15 headquartered companies, followed by Lyon (11) and Montpellier (9).

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 578 verified decision-maker contacts tracked across these 361 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.