Company lists · Data refreshed September 2026

Top 25 Oil and gas consulting firms based in France

Name: Oil and gas consulting firms based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 160 companies tracked

RevenueBase identified 160 oil and gas consulting firms headquartered in France as of September 2026 and tracks 4,294 professional contacts across them, including 721 with verified work emails and 85 with mobile numbers. Paris is the largest hub.

This list covers oil and gas consulting 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 5, 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 5, 2026 86% judged on-target in blind review

160Companies

4,294Contacts tracked

721Verified emails

85Mobile numbers

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The 25 largest oil and gas consulting firms based in France

Ranked by team size

Top 25 of 160 oil and gas consulting firms based in France, ranked by team size, largest first. Data refreshed Sep 5, 2026. RevenueBase Smart Search rates how each company's information relates to oil and gas consulting 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Prime Engineering France	Indirect evidence	Boulogne Billancourt, FranceHQ checked Sep 5, 2026	501-1,000	581 contacts →
	Indirect evidence “PRIME Engineering est l’un des acteurs incontournables du conseil en ingénierie.” Source: RevenueBase Database · checked Sep 5, 2026
2	Neo2	Strong evidence	Levallois-perret, FranceHQ checked Sep 5, 2026	501-1,000	390 contacts →
	Strong evidence “NEO2 is an Engineering Consultancy and Resource Provider active in the Oil & Gas, Water Treatment & Desalination, and Power Generation industries.” Source: RevenueBase Database · checked Sep 5, 2026
3	CVA Group	Indirect evidence	Bayonne, FranceHQ checked Sep 5, 2026	201-500	214 contacts →
	Indirect evidence “We believe that there is a human and technical value chain through the entire energy workflow.” Source: RevenueBase Database · checked Sep 5, 2026
4	Beicip-Franlab	Indirect evidence	Rueil-malmaison, FranceHQ checked Sep 5, 2026	51-200	212 contacts →
	Indirect evidence “Beicip-Franlab is a leading Energy Consultancy and Software Editor created in the 1960's with recognized worldwide hands-on expertise.” Source: RevenueBase Database · checked Sep 5, 2026
5	Stat Marine	Indirect evidence	Nîmes, FranceHQ checked Sep 5, 2026	51-200	81 contacts →
	Indirect evidence “Created in 1983, STAT MARINE is an entrepreneurial and client-focused organisation; it has won its reputation not only for its practical approach to operational and engineering…” Source: RevenueBase Database · checked Sep 5, 2026
6	Groupe Inatis	Indirect evidence	Villeneuve-d’ascq, FranceHQ checked Sep 5, 2026	51-200	69 contacts →
	Indirect evidence “Postuler à nos offres d'emploi : Envoyer votre CV : Le Groupe Inatis, Ingénierie et Conseil en technologies, est spécialisé dans l’assistance technique aux grands donneurs…” Source: RevenueBase Database · checked Sep 5, 2026
7	PLCB	Strong evidence	Pau, FranceHQ checked Sep 5, 2026	51-200	54 contacts →
	Strong evidence “PLCB Engineering est une société d'Ingénierie et de conseil spécialisée dans les industries Oil & Gas, Chimie & Pétrochimie, Projet Minier, Nucléaire et Énergies renouvelables…” Source: RevenueBase Database · checked Sep 5, 2026
8	Tech'advantage	Indirect evidence	Rueil-malmaison, FranceHQ checked Sep 5, 2026	51-200	49 contacts →
	Indirect evidence “TECH’advantage is a digital service company since 1992 and a subsidiary of IFPEN (Institut Français du Pétrole et des Energies Nouvelles) for whom we work from the beginning.” Source: RevenueBase Database · checked Sep 5, 2026
9	Et2i	Indirect evidence	Port-jérôme-sur-seine, FranceHQ checked Sep 5, 2026	11-50	45 contacts →
	Indirect evidence “L’EXPÉRIENCE EST INDISPENSABLE POUR TRAVAILLER DANS LE DOMAINE DES ETUDES TECHNIQUES D’INSTALLATIONS INDUSTRIELLES.” Source: RevenueBase Database · checked Sep 5, 2026
10	Gexplore	Partial evidence	Ludres, FranceHQ checked Sep 5, 2026	11-50	41 contacts →
	Partial evidence “GexplOre \| Specialists in Geology, Geophysics, Well Logging & Mining Consultation GexplOre is a leader in geological exploration, providing consulting services and integrated…” Source: RevenueBase Database · checked Sep 5, 2026
11	Processconsult	Indirect evidence	Lyon, FranceHQ checked Sep 5, 2026	11-50	24 contacts →
	Indirect evidence “PROCESSCONSULT est une société de conseil et d'assistance technique spécialisée en Management des projets industriels et en Ingénierie des procédés dédiée aux industries de la…” Source: RevenueBase Database · checked Sep 5, 2026
12	Cpgf Horizon & Formation	Indirect evidence	Avon, FranceHQ checked Sep 5, 2026	11-50	22 contacts →
	Indirect evidence “CPGF HORIZON est un bureau d’ingénierie spécialisé en geo-sciences.” Source: RevenueBase Database · checked Sep 5, 2026
13	Energy Consulting Services	Indirect evidence	Montardon, FranceHQ checked Sep 5, 2026	11-50	19 contacts →
	Indirect evidence “ECS is an innovative upstream provider specialized in engineering consultancy, laboratory services, chemicals and personnel supply in the Pressure Pumping domain including…” Source: RevenueBase Database · checked Sep 5, 2026
14	Cler Ingénierie	Indirect evidence	Saint Priest, FranceHQ checked Sep 5, 2026	11-50	18 contacts →
	Indirect evidence “Cler ingénierie est un bureau d’études au service des maîtres d’ouvrages publics et privés concernés par les problématiques de l’énergie.” Source: RevenueBase Database · checked Sep 5, 2026
15	Coelys	Indirect evidence	Allonne, FranceHQ checked Sep 5, 2026	11-50	18 contacts →
	Indirect evidence “COÉLYS est un bureau d'études techniques et de conseils aux industriels pour la protection de l'environnement, la lutte contre les pollutions, et le respect de la réglementation.” Source: RevenueBase Database · checked Sep 5, 2026
16	Inter360 Group	Partial evidence	Asnières-sur-seine, FranceHQ checked Sep 5, 2026	201-500	16 contacts →
	Partial evidence “Inter360 is a group of technical consulting companies dedicated to the energy industries such as conventional & unconventional O&G, rrenewable and nuclear energies.” Source: RevenueBase Database · checked Sep 5, 2026
17	Projenor Sarl	Indirect evidence	La Frenaye, FranceHQ checked Sep 5, 2026	11-50	16 contacts →
	Indirect evidence “Bureau d'études et d'ingénierie fort de plus de 40 années d'expérience dans les domaines de l'industrie pétrochimique, de l'automobile ou du bâtiment, PROJENOR vous accompagne sur…” Source: RevenueBase Database · checked Sep 5, 2026
18	Haya Energy Solutions	Indirect evidence	Paris, FranceHQ checked Sep 5, 2026	11-50	16 contacts →
	Indirect evidence “ℎ Energy consumers, producers or developers facing issues with your energy-related topics?” Source: RevenueBase Database · checked Sep 5, 2026
19	NEW Energie Concept	Indirect evidence	Epinal, FranceHQ checked Sep 5, 2026	11-50	15 contacts →
	Indirect evidence “Bureau d'études Fluides, Audits Energétiques et Economiste de la construction” Source: RevenueBase Database · checked Sep 5, 2026
20	EGEH	Indirect evidence	Limoges, FranceHQ checked Sep 5, 2026	11-50	15 contacts →
	Indirect evidence “From its creation in 1994, our company has been involved in those environmental areas where it can display the expertise of its team of geologists and hydrogeologists.” Source: RevenueBase Database · checked Sep 5, 2026
21	Aureka Group	Partial evidence	Versailles, FranceHQ checked Sep 5, 2026	1-10	11 contacts →
	Partial evidence “AUREKA GROUP is an Engineering Consulting company specialized in energy sector.” Source: RevenueBase Database · checked Sep 5, 2026
22	MASAP	Strong evidence	Grande-synthe, FranceHQ checked Sep 5, 2026	11-50	8 contacts →
	Strong evidence “MASAP est spécialisée dans l’inspection, l’audit, le management de projets Oil & Gas, énergies renouvelables et métallurgie Fondée en 2011, MASAP est composée d’experts cumulant…” Source: RevenueBase Database · checked Sep 5, 2026
23	Atfe Ingénierie	Indirect evidence	Maxéville, FranceHQ checked Sep 5, 2026	1-10	7 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 5, 2026
24	DIESE	Indirect evidence	Lagord, FranceHQ checked Sep 5, 2026	1-10	7 contacts →
	Indirect evidence “DIESE est un bureau d'études Fluides et Energies.” Source: RevenueBase Database · checked Sep 5, 2026
25	Atlantic Process Ingenierie	Indirect evidence	Saint-herblain, FranceHQ checked Sep 5, 2026	1-10	7 contacts →
	Indirect evidence “ATLANTIC PROCESS INGENIERIE est un bureau d'études et d'assistance à maîtrise d'ouvrage partenaire des industriels des secteurs pharmaceutique, chimique, agroalimentaire et…” Source: RevenueBase Database · checked Sep 5, 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: oil and gas consulting firms. 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 oil and gas consulting firms.
Partial evidence: Its own public description names part of oil and gas consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name oil and gas consulting firms. 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 160 oil and gas consulting firms based in France

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Oil and gas consulting firms based in France at a glance

As of Sep 5, 2026

16.8%Verified-email coverage

2.0%Mobile-number coverage

26.8Average contacts per company

1-10Median size (employees)

16.2%Largest-city concentration · Paris

Sep 5, 2026Page data refreshed

Companies by employee count

1-10

101

11-50

51-200

201-500

501-1,000

1,001-5,000

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

6730–30

4431–60

061–90

090–180

4180+

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 oil and gas consulting 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 “oil and gas consulting 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 oil and gas consulting 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 oil and gas consulting 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, 721 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 5, 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 oil and gas consulting 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 oil and gas consulting firms are there based in France?

RevenueBase identified 160 oil and gas consulting 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?

Prime Engineering France, headquartered in Boulogne Billancourt, tops this list with the largest team on record.

Which city has the most oil and gas consulting firms?

Paris leads with 26 headquartered companies, followed by Rueil-Malmaison (6) and Lyon (5).

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 721 verified decision-maker contacts tracked across these 160 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 5, 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.