Company lists · Data refreshed September 2026

Top 25 Energy infrastructure consultants based in France

RevenueBase identified 1,477 energy infrastructure consultants headquartered in France as of September 2026 and tracks 63,873 professional contacts across them, including 19,608 with verified work emails. Paris is the largest hub.

This list covers energy infrastructure consultants 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
1,477Companies
63,873Contacts tracked
19,608Verified emails
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The 25 largest energy infrastructure consultants based in France

Ranked by team size
Top 25 of 1,477 energy infrastructure consultants 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 infrastructure consultants: 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
1Indirect evidenceSaint-andré-lez-lille, FranceHQ checked Sep 16, 202610001+8,427 contacts →

Indirect evidence

“Dalkia : ensemble, relevons le défi climatique!”

Source: RevenueBase Database · checked Sep 16, 2026
2Partial evidenceCourbevoie, FranceHQ checked Sep 16, 20265,001-10,0006,518 contacts →

Partial evidence

“Assystem, one of the world's leading independent nuclear engineering companies, is committed to accelerating the energy transition.”

Source: RevenueBase Database · checked Sep 16, 2026
3Indirect evidenceAix-en-provence, FranceHQ checked Sep 16, 202610001+3,436 contacts →

Indirect evidence

“En conjuguant depuis sa création audace et rigueur, le groupe Ortec est devenu aujourd’hui un des leaders des services à l’industrie, l’énergie et l’environnement.”

Source: RevenueBase Database · checked Sep 16, 2026
4Partial evidenceNanterre, FranceHQ checked Sep 16, 20265,001-10,0001,903 contacts →

Partial evidence

“With today's global energy sector undergoing constant change, Omexom works with its clients in delivering on the promises of the energy transition.”

Source: RevenueBase Database · checked Sep 16, 2026
5Indirect evidenceLyon Cedex 07, FranceHQ checked Sep 16, 20261,001-5,0001,502 contacts →

Indirect evidence

“Welcome to Ekium!”

Source: RevenueBase Database · checked Sep 16, 2026
6Partial evidenceNeuilly-sur-seine, FranceHQ checked Sep 16, 20265,001-10,0001,496 contacts →

Partial evidence

“Vulcain Engineering Group is a multi-specialist engineering and consulting group serving industrial companies across the globe, focused on critical sectors: energy, health…”

Source: RevenueBase Database · checked Sep 16, 2026
7Partial evidenceLevallois-perret, FranceHQ checked Sep 16, 20261,001-5,0001,042 contacts →

Partial evidence

“JOIN US : contact@ikosconsulting.com IKOS is a leading technology consulting firm specialized in the Railway sector with an additional offer in Energy.”

Source: RevenueBase Database · checked Sep 16, 2026
8Indirect evidenceEstaque, FranceHQ checked Sep 16, 20261,001-5,000732 contacts →

Indirect evidence

“For over 50 years the Parlym Group has managed to establish itself as a major player in industrial engineering all over the world.”

Source: RevenueBase Database · checked Sep 16, 2026
9Indirect evidence92300 Levallois Perret, FranceHQ checked Sep 16, 20261,001-5,000660 contacts →

Indirect evidence

“Depuis sa création en 2013, AptiSkills s’est imposée comme un acteur de référence avec plus de 10 agences réparties sur toute la France.”

Source: RevenueBase Database · checked Sep 16, 2026
10Indirect evidenceMérignac, FranceHQ checked Sep 16, 2026501-1,000643 contacts →

Indirect evidence

“Groupe international d’Ingénierie & Réalisation, spécialisé dans les bâtiments complexes, nous assurons principalement des missions clés en main sur des projets de construction…”

Source: RevenueBase Database · checked Sep 16, 2026
11Indirect evidenceBoulogne Billancourt, FranceHQ checked Sep 16, 2026501-1,000581 contacts →

Indirect evidence

“PRIME Engineering est l’un des acteurs incontournables du conseil en ingénierie.”

Source: RevenueBase Database · checked Sep 16, 2026
12Indirect evidenceParis, FranceHQ checked Sep 16, 2026201-500525 contacts →

Indirect evidence

“Akuo est spécialisé dans la mise en œuvre d’unités de production d’électricité à partir de ressources renouvelables, en particulier le solaire, l'éolien et le stockage.”

Source: RevenueBase Database · checked Sep 16, 2026
13Indirect evidenceClichy, FranceHQ checked Sep 16, 202651-200472 contacts →

Indirect evidence

“Ginger SOFRECO is an engineering and consulting firm dedicated to international development cooperation and the implementation of industrial projects.”

Source: RevenueBase Database · checked Sep 16, 2026
14Partial evidenceParis, FranceHQ checked Sep 16, 2026501-1,000390 contacts →

Partial evidence

“Since 2009, GreenFlex has been a key partner in the energy, environmental and societal transformation of organizations, enabling them to change their trajectory towards an economy…”

Source: RevenueBase Database · checked Sep 16, 2026
15Partial evidenceParis, FranceHQ checked Sep 16, 2026501-1,000365 contacts →

Partial evidence

“DORIS is a leader in the provision of engineering, advisory, and project management services to the energy industry.”

Source: RevenueBase Database · checked Sep 16, 2026
16Indirect evidenceSaint-herblain, FranceHQ checked Sep 16, 2026201-500341 contacts →

Indirect evidence

“Atlantic Ingénierie, l’énergie d’avancer ensemble Chez Atlantic Ingénierie, nous avons une conviction : les projets d’énergie et d’industrie avancent mieux quand on allie…”

Source: RevenueBase Database · checked Sep 16, 2026
17Partial evidenceSaint-cloud, FranceHQ checked Sep 16, 2026501-1,000330 contacts →

Partial evidence

“ENGINEERING AND CONSULTING FOR A BETTER ENERGY Sofren is an international consulting company for engineering, management and industrial strategy specialising in issues relating to…”

Source: RevenueBase Database · checked Sep 16, 2026
18Partial evidenceTrappes, FranceHQ checked Sep 16, 2026201-500322 contacts →

Partial evidence

“est une société d’ingénierie et de conseil spécialisée dans le développement des groupes motopropulseurs, des véhicules et des infrastructures et solutions d’énergie.”

Source: RevenueBase Database · checked Sep 16, 2026
19Indirect evidenceObernai, FranceHQ checked Sep 16, 2026501-1,000314 contacts →

Indirect evidence

“Notre valeur ajoutée : le conseil et les services adaptés à vos besoins et à vos exigences pour vous accompagner dans vos projets de distribution et de management de l'énergie et…”

Source: RevenueBase Database · checked Sep 16, 2026
20Indirect evidenceLe Plessis Robinson, FranceHQ checked Sep 16, 20261,001-5,000312 contacts →

Indirect evidence

“Bienvenue sur la page officielle de TSG France!”

Source: RevenueBase Database · checked Sep 16, 2026
21Indirect evidenceCréteil, FranceHQ checked Sep 16, 2026501-1,000305 contacts →

Indirect evidence

“Depuis plus de 40 ans, MANERGY s’affirme comme une société indépendante de référence, spécialisée dans l’ingénierie et le conseil en transition énergétique et environnementale.”

Source: RevenueBase Database · checked Sep 16, 2026
22Partial evidenceParis, FranceHQ checked Sep 16, 2026501-1,000292 contacts →

Partial evidence

“Anotech delivers complex energy projects by integrating project governance, controls, engineering integrity, and execution into a single, accountable delivery model across the…”

Source: RevenueBase Database · checked Sep 16, 2026
23Indirect evidenceParis, FranceHQ checked Sep 16, 20261,001-5,000274 contacts →

Indirect evidence

“Fondée en 1932 par Bernard Allez, la société ALLEZ s’est rapidement spécialisée dans la construction de réseaux électriques.”

Source: RevenueBase Database · checked Sep 16, 2026
24Indirect evidenceParis, FranceHQ checked Sep 16, 2026201-500269 contacts →

Indirect evidence

“Le Groupe AGH Consulting est né en France en 2005, avec pour ambition de proposer une alternative disruptive au marché.”

Source: RevenueBase Database · checked Sep 16, 2026
25Partial evidenceColombes, FranceHQ checked Sep 16, 20261,001-5,000240 contacts →

Partial evidence

“SPECIALISED ACTIVITIES & EPC CONTRACTOR FOR THE ENERGY INDUSTRY International Contractor for design, construction and operating of production, transport and storage…”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 25 of 1,477 energy infrastructure consultants based in France

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Energy infrastructure consultants based in France at a glance

As of Sep 16, 2026
30.7%Verified-email coverage
43.2Average contacts per company
1-10Median size (employees)
14.4%Largest-city concentration · Paris
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
865
11-50
413
51-200
126
201-500
26
501-1,000
13
1,001-5,000
17
5,001-10,000
5
10001+
4

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 1,477 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 infrastructure consultants, 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 infrastructure consultants”. 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 infrastructure consultants), 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 infrastructure consultants, 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, 19,608 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 infrastructure consultants, 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 infrastructure consultants are there based in France?

RevenueBase identified 1,477 energy infrastructure consultants 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?

Dalkia, headquartered in Saint-Andre-Lez-Lille, tops this list with the largest team on record.

Which city has the most energy infrastructure consultants?

Paris leads with 212 headquartered companies, followed by Lyon (52) and Toulouse (26).

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 19,608 verified decision-maker contacts tracked across these 1,477 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.