Company lists · Data refreshed September 2026

Top 25 Energy regulatory law firms based in France

RevenueBase identified 70 energy regulatory law firms headquartered in France as of September 2026 and tracks 664 professional contacts across them, including 309 with verified work emails. Paris is the largest hub.

This list covers energy regulatory law firms 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 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
70Companies
664Contacts tracked
309Verified emails
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The 25 largest energy regulatory law firms based in France

Ranked by team size
Top 25 of 70 energy regulatory law firms based in France, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to energy regulatory law firms: 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 evidenceLyon, FranceHQ checked Sep 28, 202651-200123 contacts →

Indirect evidence

“Since our creation, we have been active in both the public and private sectors and have maintained this dual culture.”

Source: RevenueBase Database · checked Sep 28, 2026
2Indirect evidenceParis, FranceHQ checked Sep 28, 202611-5045 contacts →

Indirect evidence

“Fondé en 1993 et composé de 45 avocats, Frêche & Associés AARPI, cabinet d'avocats au Barreau de Paris, est spécialisé dans les domaines suivants - droit public des affaires et…”

Source: RevenueBase Database · checked Sep 28, 2026
3Indirect evidenceCroissy-beaubourg, FranceHQ checked Sep 28, 202611-5039 contacts →

Indirect evidence

“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.”

Source: RevenueBase Database · checked Sep 28, 2026
4Indirect evidenceMontpellier, FranceHQ checked Sep 28, 202611-5038 contacts →

Indirect evidence

“Depuis plus de 30 ans, CGCB & Associés est un cabinet d’avocats dont l’activité est exclusivement consacrée au secteur public.”

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidenceParis, FranceHQ checked Sep 28, 202611-5036 contacts →

Indirect evidence

“Dans une économie confrontée aux défis environnementaux et sociaux, CGR Avocats se positionne en leader des grandes transitions, qu’elles soient énergétique, industrielle ou…”

Source: RevenueBase Database · checked Sep 28, 2026
6Partial evidenceVélizy-villacoublay, FranceHQ checked Sep 28, 202611-5029 contacts →

Partial evidence

“Bureau d'études et de conseil en Environnement, Durabilité et Energie”

Source: RevenueBase Database · checked Sep 28, 2026
7Strong evidenceParis, FranceHQ checked Sep 28, 202611-5027 contacts →

Strong evidence

“SAMMAN is one of the few French law firms active in regulatory and public affairs and able to engage with key decision makers in France and at the European Union level.”

Source: RevenueBase Database · checked Sep 28, 2026
8Indirect evidenceParis, FranceHQ checked Sep 28, 202611-5017 contacts →

Indirect evidence

“Le cabinet BCCL Avocats a été créé avec l'ambition d’offrir un accompagnement et des conseils de haut niveau en droit public des affaires pour les entreprises, les acteurs du…”

Source: RevenueBase Database · checked Sep 28, 2026
9Partial evidenceParis, FranceHQ checked Sep 28, 202611-5016 contacts →

Partial evidence

“BENTAM is a law firm dedicated to financing, including banking, private placement, public bond issuances and private equity.”

Source: RevenueBase Database · checked Sep 28, 2026
10Indirect evidenceChambéry, FranceHQ checked Sep 28, 202611-5014 contacts →

Indirect evidence

“Agir pour limiter le changement climatique et plus globalement l'impact environnemental des activités humaines est une nécessité de court terme, qui doit mobiliser l'ensemble des…”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceParis, FranceHQ checked Sep 28, 20261-1013 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
12Indirect evidenceParis, FranceHQ checked Sep 28, 202611-5012 contacts →

Indirect evidence

“Le cabinet Earth Avocats est un cabinet d'affaires destinés à la conduite de projets publics et privés.”

Source: RevenueBase Database · checked Sep 28, 2026
13Strong evidenceParis, FranceHQ checked Sep 28, 20261-1011 contacts →

Strong evidence

“Diamantis & Partners was set up as a law firm dedicated to energy and infrastructure projects worldwide, with a focus on emerging markets in general and Africa in particular.”

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidenceParis, FranceHQ checked Sep 28, 202611-5010 contacts →

Indirect evidence

“20 ans d’engagement au service de la transition énergétique.”

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidenceParis, FranceHQ checked Sep 28, 20261-1010 contacts →

Indirect evidence

“Gossement avocats est une société d'avocats au Barreau de Paris, fondée par Arnaud Gossement.”

Source: RevenueBase Database · checked Sep 28, 2026
16Indirect evidenceLyon, FranceHQ checked Sep 28, 20261-107 contacts →

Indirect evidence

“Créé en 2011 à Lyon, Hélios Avocats accompagne depuis plus de dix ans ses clients dans la défense de leurs intérêts en droit de l’environnement, en droit de l’urbanisme et en…”

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidenceParis, FranceHQ checked Sep 28, 20261-107 contacts →

Indirect evidence

“Maîtriser vos impôts locaux.”

Source: RevenueBase Database · checked Sep 28, 2026
18Partial evidenceParis, FranceHQ checked Sep 28, 20261-103 contacts →

Partial evidence

“Bréon Ducloyer Avocats, a firm specializing in public law founded by two practitioners who are passionate about the complexity of interactions between administrations and…”

Source: RevenueBase Database · checked Sep 28, 2026
19Indirect evidenceVienne, FranceHQ checked Sep 28, 20261-103 contacts →

Indirect evidence

“Consultant pour professionnels dans l'énergie électrique et gaz”

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidenceNogent Le Phaye, FranceHQ checked Sep 28, 20261-102 contacts →

Indirect evidence

“Société à responsabilité limitée, le bureau d’études SAISON-PARAGOT a été créé le 1er juillet 1987 par Messieurs Patrick SAISON et François PARAGOT, il s’est progressivement…”

Source: RevenueBase Database · checked Sep 28, 2026
21Indirect evidenceAngers, FranceHQ checked Sep 28, 20261-101 contacts →

Indirect evidence

“Audit Environnement Consulting est une société spécialisée dans la transition énergétique et environnementale.”

Source: RevenueBase Database · checked Sep 28, 2026
22Partial evidenceParis, FranceHQ checked Sep 28, 20261-101 contacts →

Partial evidence

“The renewable energy transition is underway.”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidenceMontpellier, FranceHQ checked Sep 28, 20261-101 contacts →

Indirect evidence

“Le cabinet KOR Avocats, fondé par Barnabé CHAVRIER, intervient dans tous les domaines du droit de l'urbanisme, de l'environnement, des énergies renouvelables et du droit public en…”

Source: RevenueBase Database · checked Sep 28, 2026
24Partial evidenceParis, FranceHQ checked Sep 28, 20261-101 contacts →

Partial evidence

“Le cabinet d'avocats ENERLEX est exclusivement dédié à la fiscalité énergétique / environnementale, au droit douanier et à la TVA internationale.”

Source: RevenueBase Database · checked Sep 28, 2026
25Partial evidenceMarseille, FranceHQ checked Sep 28, 20261-101 contacts →

Partial evidence

“Affaires Publiques Lobbying Droit de l’Urbanisme Droit de l'Energie Intelligence Économique Partenaires Roland BLUM Stéphane ENGELHARD Cyril de CAZALET Avocats au Barreau de…”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 70 energy regulatory law firms based in France

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Energy regulatory law firms based in France at a glance

As of Sep 28, 2026
46.5%Verified-email coverage
9.5Average contacts per company
1-10Median size (employees)
51.4%Largest-city concentration · Paris
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
50
11-50
18
51-200
2

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 70 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 regulatory law firms, 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 regulatory law firms”. 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 regulatory law firms), 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 regulatory law firms, 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, 309 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.

Energy regulatory law firms by metro

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 regulatory law firms, 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 regulatory law firms are there based in France?

RevenueBase identified 70 energy regulatory law firms 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?

Adaltys Avocats, headquartered in Lyon, tops this list with the largest team on record.

Which city has the most energy regulatory law firms?

Paris leads with 36 headquartered companies, followed by Lyon (3) and Bordeaux (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 309 verified decision-maker contacts tracked across these 70 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.