Company lists · Data refreshed September 2026

Top 25 Facility energy optimization software companies based in Paris, France

Name: Facility energy optimization software companies based in Paris, France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 80 companies tracked

RevenueBase identified 80 facility energy optimization software companies headquartered in Paris, France as of September 2026 and tracks 1,054 professional contacts across them, including 481 with verified work emails. Across France, Paris is the largest hub for this category.

This list covers facility energy optimization software companies headquartered in Paris, 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 28, 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 28, 2026 86% judged on-target in blind review

80Companies

1,054Contacts tracked

481Verified emails

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The 25 largest facility energy optimization software companies based in Paris, France

Ranked by team size

Top 25 of 80 facility energy optimization software companies based in Paris, France, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to facility energy optimization software 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	Eficia	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	51-200	169 contacts →
	Indirect evidence “Eficia révolutionne le secteur de l'efficacité énergétique avec la première solution globale et 100% intégrée du marché pour garantir la performance énergétique de vos bâtiments…” Source: RevenueBase Database · checked Sep 28, 2026
2	Advizeo	Partial evidence	Paris, FranceHQ checked Sep 28, 2026	51-200	149 contacts →
	Partial evidence “advizeo supports companies and local authorities in reducing the energy consumption of their buildings.” Source: RevenueBase Database · checked Sep 28, 2026
3	Smart Impulse	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	51-200	87 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
4	Dametis	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	51-200	59 contacts →
	Indirect evidence “L’industrie représente 20% des émissions de CO2.” Source: RevenueBase Database · checked Sep 28, 2026
5	Crust Energie	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	55 contacts →
	Indirect evidence “Crust énergie réalise des travaux rénovation énergétique et les finance à 100%.” Source: RevenueBase Database · checked Sep 28, 2026
6	Sobre Energie	Partial evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	53 contacts →
	Partial evidence “Sobre Energie, est une solution Deepki, dédiée à l’Energy Management et à l’accompagnement des entreprises et des collectivités dans la sobriété énergétique de leurs parcs…” Source: RevenueBase Database · checked Sep 28, 2026
7	Iboco France	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	501-1,000	36 contacts →
	Indirect evidence “Iboco, spécialiste en cheminement de l’énergie, est un acteur incontournable sur les segments du Résidentiel, du Tertiaire, de l’Industrie et de l’Infrastructure.” Source: RevenueBase Database · checked Sep 28, 2026
8	Eco-Adapt	Partial evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	30 contacts →
	Partial evidence “Eco-Adapt is a company specialized in energy monitoring and predictive maintenance.” Source: RevenueBase Database · checked Sep 28, 2026
9	Eleneo	Partial evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	28 contacts →
	Partial evidence “Eleneo crafts cutting-edge software solutions and offer strategic and operational advisory services.” Source: RevenueBase Database · checked Sep 28, 2026
10	Highcast	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	1-10	21 contacts →
	Indirect evidence “Highcast leverages artificial intelligence algorithms to optimize factory planning flexibility, enabling a 5% to 20% reduction in electricity costs.” Source: RevenueBase Database · checked Sep 28, 2026
11	Rénolib	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	20 contacts →
	Indirect evidence “RÉNOLIB est une startup positionnée sur le financement de la rénovation énergétique des bâtiments.” Source: RevenueBase Database · checked Sep 28, 2026
12	NRJX	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	1-10	14 contacts →
	Indirect evidence “NRJx est né de l’ambition de réduire l’impact énergétique de l’industrie en France.” Source: RevenueBase Database · checked Sep 28, 2026
13	IZHO	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	12 contacts →
	Indirect evidence “Depuis 2016 IZHO accompagne les propriétaires et gestionnaires de bâtiments tertiaires dans la maîtrise des performances énergétiques de leur parc immobilier et de leur activité.” Source: RevenueBase Database · checked Sep 28, 2026
14	Homeys	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	12 contacts →
	Indirect evidence “Fidelix France est l’entité française de Fidelix, spécialiste européen des solutions de gestion technique du bâtiment (GTB) et membre du groupe Assemblin Caverion.” Source: RevenueBase Database · checked Sep 28, 2026
15	Kallpa Énergie Solutions	Partial evidence	Paris, FranceHQ checked Sep 28, 2026	1-10	12 contacts →
	Partial evidence “Kallpa Energie Solutions est une société de conseil et d'ingénierie spécialisée dans la performance énergétique.” Source: RevenueBase Database · checked Sep 28, 2026
16	Evolution Energie	Strong evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	11 contacts →
	Strong evidence “Evolution Energie provides expert energy management softwares to energy suppliers and industrials to manage and optimize their portfolio.” Source: RevenueBase Database · checked Sep 28, 2026
17	Phébus Énergie	Partial evidence	Paris, FranceHQ checked Sep 28, 2026	1-10	9 contacts →
	Partial evidence “Phébus Energie une société à mission, dont la raison d’être est d’accélérer la transition du secteur immobilier et tertiaire en déployant des solutions de pilotage énergétique.” Source: RevenueBase Database · checked Sep 28, 2026
18	Efficap-Energie	Partial evidence	Paris, FranceHQ checked Sep 28, 2026	1-10	9 contacts →
	Partial evidence “EFFICAP ENERGIE propose des solutions techniques pour apporter confort et sobriété énergétique aux grands ensembles immobiliers dotés de chauffage collectif.” Source: RevenueBase Database · checked Sep 28, 2026
19	Alva Systems	Partial evidence	Paris, FranceHQ checked Sep 28, 2026	1-10	8 contacts →
	Partial evidence “Alva Systems is a tech company specialized in the installation of energy systems for commercial and industrial buildings.> Energy Management (BMS) Monitor and regulate your…” Source: RevenueBase Database · checked Sep 28, 2026
20	Hxperience	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	8 contacts →
	Indirect evidence “Hxperience gives meaning to the data of your buildings so you can make better decisions and act more efficiently.” Source: RevenueBase Database · checked Sep 28, 2026
21	4d.energy	Partial evidence	Paris, FranceHQ checked Sep 28, 2026	1-10	6 contacts →
	Partial evidence “4D.energy unlocks energy savings for European commercial & industrial clients by allowing them to implement Energy Efficiency projects with no upfront capital expenditure, as part…” Source: RevenueBase Database · checked Sep 28, 2026
22	Xtra-Energy	Strong evidence	Paris, FranceHQ checked Sep 28, 2026	1-10	5 contacts →
	Strong evidence “Energy Contract & Portfolio Management Software.” Source: RevenueBase Database · checked Sep 28, 2026
23	Foobot	Partial evidence	Paris, FranceHQ checked Sep 28, 2026	1-10	5 contacts →
	Partial evidence “Meet your carbon reduction goals, and save on your energy bills, with a solution that pays for itself.” Source: RevenueBase Database · checked Sep 28, 2026
24	Solugryn	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	5 contacts →
	Indirect evidence “SoluGryn est une startup, dédiée aux professionnels du bâtiment, proposant des outils pour améliorer l'efficacité énergétique des constructions : formation, audit, diagnostic et…” Source: RevenueBase Database · checked Sep 28, 2026
25	Adapt AI	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	1-10	4 contacts →
	Indirect evidence “ADAPT AI is dedicated to reducing greenhouse gas emissions in commercial real estate while enhancing the profitability of retrofit projects.” Source: RevenueBase Database · checked Sep 28, 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: facility energy optimization software 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 facility energy optimization software companies.
Partial evidence: Its own public description names part of facility energy optimization software companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name facility energy optimization software 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 80 facility energy optimization software companies based in Paris, France

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Facility energy optimization software companies based in Paris, France at a glance

As of Sep 28, 2026

45.6%Verified-email coverage

13.2Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

501-1,000

Email recency for this list is measured across the whole France list rather than for Paris, so it is reported there. Company counts and contact totals on this page are exact for Paris, over 80 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 facility energy optimization software 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 Paris, France whose own description of what they do matches “facility energy optimization software 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 facility energy optimization software 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 facility energy optimization software companies, and records with no verified work email. Companies headquartered outside Paris 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, 481 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 28, 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.

Facility energy optimization software companies by metro in France

Facility energy optimization software companies in Lyon29

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 facility energy optimization software 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 facility energy optimization software companies are there based in Paris, France?

RevenueBase identified 80 facility energy optimization software companies headquartered in Paris, 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?

Eficia, headquartered in Paris, tops this list with the largest team on record.

Which city in France has the most facility energy optimization software companies?

Paris leads France with 80 headquartered companies, followed by Lyon (29) and Boulogne-Billancourt (8).

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 481 verified decision-maker contacts tracked across these 80 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 28, 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.