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, how directly it supports the match, 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 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 HQ checked on every row Match evidence 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. Evidence rates how directly each company's own description names oil and gas consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Prime Engineering FranceIndirect evidence	Boulogne Billancourt, FranceHQ checked Sep 5, 2026	501-1,000	581
	“PRIME Engineering est l’un des acteurs incontournables du conseil en ingénierie.” Source: company website · checked Sep 5, 2026
2	Neo2Strong evidence	Levallois-perret, FranceHQ checked Sep 5, 2026	501-1,000	390
	“NEO2 is an Engineering Consultancy and Resource Provider active in the Oil & Gas, Water Treatment & Desalination, and Power Generation industries.” Source: company website · checked Sep 5, 2026
3	CVA GroupIndirect evidence	Bayonne, FranceHQ checked Sep 5, 2026	201-500	214
	“We believe that there is a human and technical value chain through the entire energy workflow.” Source: company website · checked Sep 5, 2026
4	Beicip-FranlabIndirect evidence	Rueil-malmaison, FranceHQ checked Sep 5, 2026	51-200	212
	“Beicip-Franlab is a leading Energy Consultancy and Software Editor created in the 1960's with recognized worldwide hands-on expertise.” Source: company website · checked Sep 5, 2026
5	Stat MarineIndirect evidence	Nîmes, FranceHQ checked Sep 5, 2026	51-200	81
	“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: company website · checked Sep 5, 2026
6	Groupe InatisIndirect evidence	Villeneuve-d’ascq, FranceHQ checked Sep 5, 2026	51-200	69
	“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: company website · checked Sep 5, 2026
7	PLCBStrong evidence	Pau, FranceHQ checked Sep 5, 2026	51-200	54
	“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: company website · checked Sep 5, 2026
8	Tech'advantageIndirect evidence	Rueil-malmaison, FranceHQ checked Sep 5, 2026	51-200	49
	“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: company website · checked Sep 5, 2026
9	Et2iIndirect evidence	Port-jérôme-sur-seine, FranceHQ checked Sep 5, 2026	11-50	45
	“L’EXPÉRIENCE EST INDISPENSABLE POUR TRAVAILLER DANS LE DOMAINE DES ETUDES TECHNIQUES D’INSTALLATIONS INDUSTRIELLES.” Source: company website · checked Sep 5, 2026
10	GexplorePartial evidence	Ludres, FranceHQ checked Sep 5, 2026	11-50	41
	“GexplOre \| Specialists in Geology, Geophysics, Well Logging & Mining Consultation GexplOre is a leader in geological exploration, providing consulting services and integrated…” Source: company website · checked Sep 5, 2026
11	ProcessconsultIndirect evidence	Lyon, FranceHQ checked Sep 5, 2026	11-50	24
	“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: company website · checked Sep 5, 2026
12	Cpgf Horizon & FormationIndirect evidence	Avon, FranceHQ checked Sep 5, 2026	11-50	22
	“CPGF HORIZON est un bureau d’ingénierie spécialisé en geo-sciences.” Source: company website · checked Sep 5, 2026
13	Energy Consulting ServicesIndirect evidence	Montardon, FranceHQ checked Sep 5, 2026	11-50	19
	“ECS is an innovative upstream provider specialized in engineering consultancy, laboratory services, chemicals and personnel supply in the Pressure Pumping domain including…” Source: company website · checked Sep 5, 2026
14	Cler IngénierieIndirect evidence	Saint Priest, FranceHQ checked Sep 5, 2026	11-50	18
	“Cler ingénierie est un bureau d’études au service des maîtres d’ouvrages publics et privés concernés par les problématiques de l’énergie.” Source: company website · checked Sep 5, 2026
15	CoelysIndirect evidence	Allonne, FranceHQ checked Sep 5, 2026	11-50	18
	“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: company website · checked Sep 5, 2026
16	Inter360 GroupPartial evidence	Asnières-sur-seine, FranceHQ checked Sep 5, 2026	201-500	16
	“Inter360 is a group of technical consulting companies dedicated to the energy industries such as conventional & unconventional O&G, rrenewable and nuclear energies.” Source: company website · checked Sep 5, 2026
17	Projenor SarlIndirect evidence	La Frenaye, FranceHQ checked Sep 5, 2026	11-50	16
	“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: company website · checked Sep 5, 2026
18	Haya Energy SolutionsIndirect evidence	Paris, FranceHQ checked Sep 5, 2026	11-50	16
	“ℎ Energy consumers, producers or developers facing issues with your energy-related topics?” Source: company website · checked Sep 5, 2026
19	NEW Energie ConceptIndirect evidence	Epinal, FranceHQ checked Sep 5, 2026	11-50	15
	“Bureau d'études Fluides, Audits Energétiques et Economiste de la construction” Source: company website · checked Sep 5, 2026
20	EGEHIndirect evidence	Limoges, FranceHQ checked Sep 5, 2026	11-50	15
	“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: company website · checked Sep 5, 2026
21	Aureka GroupPartial evidence	Versailles, FranceHQ checked Sep 5, 2026	1-10	11
	“AUREKA GROUP is an Engineering Consulting company specialized in energy sector.” Source: company website · checked Sep 5, 2026
22	MASAPStrong evidence	Grande-synthe, FranceHQ checked Sep 5, 2026	11-50	8
	“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: company website · checked Sep 5, 2026
23	Atfe IngénierieIndirect evidence	Maxéville, FranceHQ checked Sep 5, 2026	1-10	7
	Source: company website · checked Sep 5, 2026
24	DIESEIndirect evidence	Lagord, FranceHQ checked Sep 5, 2026	1-10	7
	“DIESE est un bureau d'études Fluides et Energies.” Source: company website · checked Sep 5, 2026
25	Atlantic Process IngenierieIndirect evidence	Saint-herblain, FranceHQ checked Sep 5, 2026	1-10	7
	“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: company website · checked Sep 5, 2026

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

1-10Median size (employees)

ParisLargest hub · 26 HQs

85Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

101

11-50

51-200

201-500

501-1,000

1,001-5,000

Verified emails by last verification

0–30

673

31–60

61–90

90–180

180+

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 evidence 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 SmartSearch, 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.
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 an evidence 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.

Oil and gas consulting firms by metro

Oil and gas consulting firms in Paris26

Frequently asked

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 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.