Company lists · Data refreshed October 2026

Top 25 Building retrofit companies based in France

Name: Building retrofit companies based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 9, 2026 623 companies tracked

RevenueBase identified 623 company matches for building retrofit companies associated with France as of October 2026 and tracks 6,121 professional contacts across them, including 1,430 with verified work emails. Paris is the largest hub.

This list covers company matches for building retrofit companies associated with France, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 9, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Oct 9, 2026 How this list was built

623Companies

6,121Contacts tracked

1,430Verified emails

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The 25 largest building retrofit companies based in France

Ranked by team size

Top 25 of 623 company matches for building retrofit companies based in France, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 9, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Acorus	Exact match	Croissy Beaubourg, FranceHQ recorded Oct 9, 2026	1,001-5,000	683 contacts →
	Exact match “Acorus, spécialiste de la rénovation en sites occupés, confirme en 2015 la solidité de son modèle de multi-spécialiste et poursuit son développement sur le territoire national.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
2	CDC Conseil	Exact match	Joué-lès-tours, FranceHQ recorded Oct 9, 2026	51-200	98 contacts →
	Exact match “CDC Conseil est une entreprise qui propose - Aux gestionnaires de patrimoines immobiliers des prestations de conseil de suivi d’exploitation, d’achat d’énergie et des solutions…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
3	TERAO	Exact match	Paris, FranceHQ recorded Oct 9, 2026	51-200	97 contacts →
	Exact match “Crée en 1993, TERAO est un pionner de l’immobilier durable, fort d’une équipe pluridisciplinaire d’une quarantaine d’ingénieurs, présent en France et à l’international.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
4	NERCO	Exact match	Ecully Cedex, FranceHQ recorded Oct 9, 2026	51-200	94 contacts →
	Exact match “Le Groupe NERCO conseille et accompagne Investisseurs, Foncières, Assets managers, Property managers et Utilisateurs à tous les stades de leurs projets de rénovation…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
5	Myrium	Exact match	Vélizy-villacoublay, FranceHQ recorded Oct 9, 2026	1,001-5,000	92 contacts →
	Exact match “Myrium est un opérateur indépendant de référence au service de la performance durable des bâtiments.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
6	Reanova	Exact match	Vélizy-villacoublay, FranceHQ recorded Oct 9, 2026	51-200	76 contacts →
	Exact match “Reanova est une entreprise de services spécialisée dans la rénovation globale des copropriétés.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
7	Activ Travaux France	Exact match	Carquefou, FranceHQ recorded Oct 9, 2026	51-200	74 contacts →
	Exact match “Acteur national incontournable dans son domaine d’activité, Le réseau ACTIV TRAVAUX est né en 2005 avec une activité historique de courtage en travaux, depuis 2017 son…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
8	Chanel Rénovation	Exact match	Vénissieux, FranceHQ recorded Oct 9, 2026	51-200	68 contacts →
	Exact match “Barder, isoler, valoriser, réhabiliter, embellir.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
9	VIRIA	Exact match	Caen, FranceHQ recorded Oct 9, 2026	51-200	60 contacts →
	Exact match “Qui sommes-nous?” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
10	Groupe Optim	Exact match	Paris, FranceHQ recorded Oct 9, 2026	51-200	58 contacts →
	Exact match “SMART WORKPLACE SOLUTIONS L’équipe Optim, Expérimentée et Performante.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
11	Crust Energie	Exact match	Paris, FranceHQ recorded Oct 9, 2026	11-50	55 contacts →
	Exact match “Crust énergie réalise des travaux rénovation énergétique et les finance à 100%.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
12	Ithaque	Exact match	Paris, FranceHQ recorded Oct 9, 2026	11-50	54 contacts →
	Exact match “Ithaque a été créée avec la conviction que la rénovation énergétique des maisons est un enjeu central de la transition écologique.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
13	AXYS	Exact match	Courtabœuf, FranceHQ recorded Oct 9, 2026	11-50	42 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
14	PDA Architecture	Exact match	Paris, FranceHQ recorded Oct 9, 2026	11-50	42 contacts →
	Exact match “PDA Architecture conçoit et réhabilite des immeubles à Paris depuis 2002.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
15	Lockroy Construction	Exact match	Paris, FranceHQ recorded Oct 9, 2026	51-200	41 contacts →
	Exact match “Des bâtiments professionnels pensés pour l’avenir.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
16	IE Conseil - BET	Exact match	Croissy-beaubourg, FranceHQ recorded Oct 9, 2026	11-50	39 contacts →
	Exact match “IE CONSEIL est perçu comme un acteur reconnu pour le conseil en utilisation et en gestion de l’énergie dans les bâtiments existants mais également pour les constructions neuves.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
17	Sogitec	Exact match	Marseille, FranceHQ recorded Oct 9, 2026	51-200	38 contacts →
	Exact match “SOGITEC est une entreprise de services énergétiques indépendante, experte en génie thermique & climatique, en travaux, maintenance, exploitation et en gestion énergétique des…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
18	Tucoenergie	Exact match	Clichy, FranceHQ recorded Oct 9, 2026	51-200	37 contacts →
	Exact match “Depuis 2009, TucoEnergie est engagé pour rendre la rénovation énergétique possible et accessible au plus grand nombre.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
19	BSE Building Systems Energies	Exact match	Joué-lès-tours, FranceHQ recorded Oct 9, 2026	11-50	36 contacts →
	Exact match “Créé en 2008 au sein du Groupe Hervé, BSE est un bureau d'études spécialisé dans la performance énergétique et environnementale des bâtiments.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
20	AXESS	Exact match	Paris, FranceHQ recorded Oct 9, 2026	51-200	35 contacts →
	Exact match “Fondé en 2018, Axess rassemble des collaborateurs passionnés autour d'une aspiration commune : construire des bâtiments plus performants et durables.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
21	EPPY	Exact match	La Garenne-colombes, FranceHQ recorded Oct 9, 2026	11-50	35 contacts →
	Exact match “Le groupe Eppy est un bureau d'études qui maîtrise tous les métiers techniques et tout le cycle de vie du bâtiment : montage, conception, construction et exploitation.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
22	BCI	Exact match	Beynost, FranceHQ recorded Oct 9, 2026	51-200	35 contacts →
	Exact match “Née en 2012 à Beynost dans l’Ain, l’entreprise BCI est spécialisée dans la rénovation de l’habitat.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
23	Alteresco	Exact match	Nantes, FranceHQ recorded Oct 9, 2026	11-50	34 contacts →
	Exact match “ALTERESCO est un ensemblier qui porte des projets globaux de réhabilitation au travers de CPE (conception, travaux, exploitation, garantie de résultats).” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
24	Harmonie	Exact match	Cergy, FranceHQ recorded Oct 9, 2026	51-200	30 contacts →
	Exact match “Harmonie : Votre Expert depuis 1977 en Isolation thermique par l'exterieur, Ravalement & Étanchéité en Île-de-France Nous mettons notre savoir-faire au service de la performance…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
25	ANÉO	Exact match	Baillargues, FranceHQ recorded Oct 9, 2026	51-200	28 contacts →
	Exact match “À l’origine, nous, Philippe Gschwind et Nicolas Besson, étions deux salariés du secteur énergétique.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “building retrofit companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 623 building retrofit companies based in France

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Building retrofit companies based in France at a glance

As of Oct 9, 2026

23.4%Verified-email coverage

9.8Average contacts per company

1-10Median size (employees)

11.6%Largest-city concentration · Paris

Oct 9, 2026Page data refreshed

Companies by employee count

1-10

382

11-50

184

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 623 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with France whose business descriptions match “building retrofit companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 1,430 professional contacts with verified work emails across the full matched dataset. 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 October 9, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Building retrofit companies by metro

Building retrofit companies in Paris72

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “building retrofit companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many building retrofit companies are there based in France?

RevenueBase identified 623 company matches for building retrofit companies associated with France as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Acorus tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most building retrofit companies?

Paris leads with 72 company records, followed by Lyon (15) and Toulouse (10).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,430 professional contacts with verified work emails tracked across these 623 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 9, 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 SmartSearch, 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.