Company lists · Data refreshed September 2026

Top 23 Petroleum engineering firms based in France

Name: Petroleum engineering firms based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 84 companies tracked

RevenueBase identified 84 petroleum engineering firms headquartered in France as of September 2026 and tracks 3,764 professional contacts across them, including 597 with verified work emails. Paris is the largest hub.

This list covers petroleum engineering 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 17, 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 17, 2026 86% judged on-target in blind review

84Companies

3,764Contacts tracked

597Verified emails

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The 23 largest petroleum engineering firms based in France

Ranked by team size

Top 23 of 84 petroleum engineering firms based in France, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to petroleum engineering 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	Neo2	Partial evidence	Levallois-perret, FranceHQ checked Sep 17, 2026	501-1,000	390 contacts →
	Partial 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 17, 2026
2	Atlantic Ingénierie	Indirect evidence	Saint-herblain, FranceHQ checked Sep 17, 2026	201-500	341 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 17, 2026
3	CVA Group	Indirect evidence	Bayonne, FranceHQ checked Sep 17, 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 17, 2026
4	Beicip-Franlab	Indirect evidence	Rueil-malmaison, FranceHQ checked Sep 17, 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 17, 2026
5	Stat Marine	Partial evidence	Nîmes, FranceHQ checked Sep 17, 2026	51-200	81 contacts →
	Partial 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 17, 2026
6	Groupe Inatis	Indirect evidence	Villeneuve-d’ascq, FranceHQ checked Sep 17, 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 17, 2026
7	PLCB	Partial evidence	Pau, FranceHQ checked Sep 17, 2026	51-200	54 contacts →
	Partial 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 17, 2026
8	Tech'advantage	Indirect evidence	Rueil-malmaison, FranceHQ checked Sep 17, 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 17, 2026
9	Gexplore	Indirect evidence	Ludres, FranceHQ checked Sep 17, 2026	11-50	41 contacts →
	Indirect 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 17, 2026
10	Cpgf Horizon & Formation	Indirect evidence	Avon, FranceHQ checked Sep 17, 2026	11-50	22 contacts →
	Indirect evidence “CPGF HORIZON est un bureau d’ingénierie spécialisé en geo-sciences.” Source: RevenueBase Database · checked Sep 17, 2026
11	Energy Consulting Services	Partial evidence	Montardon, FranceHQ checked Sep 17, 2026	11-50	19 contacts →
	Partial 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 17, 2026
12	Inter360 Group	Indirect evidence	Asnières-sur-seine, FranceHQ checked Sep 17, 2026	201-500	16 contacts →
	Indirect 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 17, 2026
13	Internebest	Partial evidence	Paris, FranceHQ checked Sep 17, 2026	51-200	12 contacts →
	Partial evidence “Internebest is an engineering service company providing high level technical assistance in the oil and gas and nuclear industry Internebest is an affiliate company of Inter360…” Source: RevenueBase Database · checked Sep 17, 2026
14	Aureka Group	Partial evidence	Versailles, FranceHQ checked Sep 17, 2026	1-10	11 contacts →
	Partial evidence “AUREKA GROUP is an Engineering Consulting company specialized in energy sector.” Source: RevenueBase Database · checked Sep 17, 2026
15	DPMF	Indirect evidence	Montagny, FranceHQ checked Sep 17, 2026	11-50	9 contacts →
	Indirect evidence “Depuis plus de 30 ans, DPMF propose une gamme complète de produits et matériel de qualité pour la réalisation de vos forages.” Source: RevenueBase Database · checked Sep 17, 2026
16	Atfe Ingénierie	Indirect evidence	Maxéville, FranceHQ checked Sep 17, 2026	1-10	7 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
17	Cl2r Industrial Solutions	Indirect evidence	Palaiseau, FranceHQ checked Sep 17, 2026	1-10	7 contacts →
	Indirect evidence “CL2R Industrial solutions est une société spécialisée dans le conseil et les services pour l'industrie, l’énergie et l’environnement.” Source: RevenueBase Database · checked Sep 17, 2026
18	GMH Engineering & Consulting Solutions	Partial evidence	Vauréal, FranceHQ checked Sep 17, 2026	1-10	6 contacts →
	Partial evidence “GMH Engineering & Consulting Solutions supports major players in the energy and industrial sectors by delivering engineering, project management and consulting services tailored…” Source: RevenueBase Database · checked Sep 17, 2026
19	Hydro Assistance Ingenierie	Indirect evidence	Hinx, FranceHQ checked Sep 17, 2026	11-50	4 contacts →
	Indirect evidence “Bureau d'études spécialisé dans l'ingénierie de forages.” Source: RevenueBase Database · checked Sep 17, 2026
20	Geoz Consulting	Partial evidence	Nice, FranceHQ checked Sep 17, 2026	1-10	4 contacts →
	Partial evidence “GeoZ Consulting is a specialized and globally focused consultancy company, offering geotechnical services and engineering project management to the offshore industry.” Source: RevenueBase Database · checked Sep 17, 2026
21	Gesolia	Indirect evidence	Floirac, FranceHQ checked Sep 17, 2026	1-10	3 contacts →
	Indirect evidence “Etude et Conseil en Environnement, Géologie et Hydrogéologie” Source: RevenueBase Database · checked Sep 17, 2026
22	Imrat Engineering	Partial evidence	St Quentin Fallavier, FranceHQ checked Sep 17, 2026	1-10	3 contacts →
	Partial evidence “IMRAT ENGINEERING, entreprise spécialisée dans l'expertise des réservoirs de stockage pétroliers.” Source: RevenueBase Database · checked Sep 17, 2026
23	GPC Instrumentation Process	Indirect evidence	Roissy En France, FranceHQ checked Sep 17, 2026	1-10	2 contacts →
	Indirect evidence “GPC INSTRUMENTATION PROCESS GPC INSTRUMENTATION PROCESS (GPC IP) is a consulting engineers bureau and a service company created in 1989 from a nucleus of professionals experienced…” Source: RevenueBase Database · checked Sep 17, 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: petroleum engineering 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 petroleum engineering firms.
Partial evidence: Its own public description names part of petroleum engineering firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name petroleum engineering 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 23 of 84 petroleum engineering firms based in France

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Petroleum engineering firms based in France at a glance

As of Sep 17, 2026

15.9%Verified-email coverage

44.8Average contacts per company

1-10Median size (employees)

10.7%Largest-city concentration · Paris

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 84 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 petroleum engineering 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 “petroleum engineering 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 petroleum engineering 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 petroleum engineering 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, 597 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 17, 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 petroleum engineering 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 petroleum engineering firms are there based in France?

RevenueBase identified 84 petroleum engineering 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?

Neo2, headquartered in Levallois-Perret, tops this list with the largest team on record.

Which city has the most petroleum engineering firms?

Paris leads with 9 headquartered companies, followed by Rueil-Malmaison (5) and Pau (4).

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 597 verified decision-maker contacts tracked across these 84 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 17, 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.