Company lists · Data refreshed September 2026

Top 25 Refinery engineering firms based in France

Name: Refinery 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 1,207 companies tracked

RevenueBase identified 1,207 refinery engineering firms headquartered in France as of September 2026 and tracks 23,652 professional contacts across them, including 7,831 with verified work emails. Paris is the largest hub.

This list covers refinery 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

1,207Companies

23,652Contacts tracked

7,831Verified emails

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The 25 largest refinery engineering firms based in France

Ranked by team size

Top 25 of 1,207 refinery 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 refinery 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	EKIUM	Indirect evidence	Lyon Cedex 07, FranceHQ checked Sep 17, 2026	1,001-5,000	1,502 contacts →
	Indirect evidence “Welcome to Ekium!” Source: RevenueBase Database · checked Sep 17, 2026
2	Vulcain Engineering Group	Partial evidence	Neuilly-sur-seine, FranceHQ checked Sep 17, 2026	5,001-10,000	1,496 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 17, 2026
3	Parlym	Partial evidence	Estaque, FranceHQ checked Sep 17, 2026	1,001-5,000	732 contacts →
	Partial 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 17, 2026
4	Foure Lagadec	Indirect evidence	Le Havre, FranceHQ checked Sep 17, 2026	1,001-5,000	718 contacts →
	Indirect evidence “Building on its industrial heritage, its strong ties to the Snef Group, and its commitment to innovation, Fouré Lagadec continues to evolve to meet the technical and energy…” Source: RevenueBase Database · checked Sep 17, 2026
5	Prime Engineering France	Partial evidence	Boulogne Billancourt, FranceHQ checked Sep 17, 2026	501-1,000	581 contacts →
	Partial evidence “PRIME Engineering est l’un des acteurs incontournables du conseil en ingénierie.” Source: RevenueBase Database · checked Sep 17, 2026
6	3c Metal	Partial evidence	Sauvelade, FranceHQ checked Sep 17, 2026	1,001-5,000	518 contacts →
	Partial evidence “Established in 1995 in France, 3C Metal Group is a recognized leader in providing sophisticated engineering services to the oil and gas, green technology, renewable energy, power…” Source: RevenueBase Database · checked Sep 17, 2026
7	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
8	Eras Engineering	Partial evidence	Lyon, FranceHQ checked Sep 17, 2026	201-500	388 contacts →
	Partial evidence “ERAS, an EQUANS brand, is a multi-specialist engineering company dedicated to the process industry.” Source: RevenueBase Database · checked Sep 17, 2026
9	Ametra Engineering	Indirect evidence	Clamart, FranceHQ checked Sep 17, 2026	501-1,000	385 contacts →
	Indirect evidence “AMETRA Ingénierie est un groupe dont la vocation est d’accompagner les entreprises dans la conception et le développement de projets innovants.” Source: RevenueBase Database · checked Sep 17, 2026
10	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
11	ECM Engineering Conception Maintenance	Partial evidence	Paris, FranceHQ checked Sep 17, 2026	201-500	336 contacts →
	Partial evidence “ECM (Engineering Conception Maintenance) a été créée en 1973 par le groupe CRIT, leader français du service aux entreprises dont le C.A.” Source: RevenueBase Database · checked Sep 17, 2026
12	Heurtey Petrochem Solutions	Indirect evidence	Rueil-malmaison, FranceHQ checked Sep 17, 2026	1,001-5,000	277 contacts →
	Indirect evidence “Heurtey Petrochem Solutions is a world leader in process furnaces for refining, petrochemicals, syngas and hydrogen markets.” Source: RevenueBase Database · checked Sep 17, 2026
13	Ep2c	Indirect evidence	Balma, FranceHQ checked Sep 17, 2026	501-1,000	211 contacts →
	Indirect evidence “EP2C recruits talents looking for an international career.” Source: RevenueBase Database · checked Sep 17, 2026
14	Bouygues Energies & Services, Industry	Indirect evidence	Guyancourt, FranceHQ checked Sep 17, 2026	1,001-5,000	154 contacts →
	Indirect evidence “Bouygues Energies & Services, Energy and Industry, a subsidiary of Equans, is a specialist design, build, and maintain partner for the industries of today and tomorrow.” Source: RevenueBase Database · checked Sep 17, 2026
15	Axodyn	Indirect evidence	Limonest, FranceHQ checked Sep 17, 2026	51-200	153 contacts →
	Indirect evidence “AXODYN – L’ingénierie des projets complexes Créée en 2013, AXODYN accompagne les grands acteurs de l’Énergie, de l’Industrie et des Infrastructures sur des projets techniques à…” Source: RevenueBase Database · checked Sep 17, 2026
16	Orinox	Partial evidence	Chateaubriant, FranceHQ checked Sep 17, 2026	201-500	151 contacts →
	Partial evidence “ORINOX is a software consulting, plant design & engineering firm specializing in digitalization using- AVEVA IE & D software suite (PDMS, E3D, Diagrams, Engineering.), for…” Source: RevenueBase Database · checked Sep 17, 2026
17	ACEPP	Indirect evidence	Lyon, FranceHQ checked Sep 17, 2026	51-200	144 contacts →
	Indirect evidence “INGÉNIERISTE DE LA CONSTRUCTION DES INFRASTRUCTURES COMPLEXES Pour garantir à nos clients, le transfert réussi à l’exploitant des d’infrastructures complexes, notre département…” Source: RevenueBase Database · checked Sep 17, 2026
18	Setec Énergie Environnement	Partial evidence	Paris, FranceHQ checked Sep 17, 2026	51-200	143 contacts →
	Partial evidence “Setec énergie environnement is a subsidiary of the setec group, one of France’s leading engineering firms (3 300 employees).” Source: RevenueBase Database · checked Sep 17, 2026
19	Groupe Pharea	Indirect evidence	Lyon, FranceHQ checked Sep 17, 2026	201-500	140 contacts →
	Indirect evidence “Le Groupe Pharea, une expertise technique depuis près de 15 ans au service de vos projets industriels!” Source: RevenueBase Database · checked Sep 17, 2026
20	Ingenica	Indirect evidence	Sérézin-du-rhône, FranceHQ checked Sep 17, 2026	51-200	116 contacts →
	Indirect evidence “INGENICA, entité de Equans Process Solutions, réalise des prestations d’ingénierie de conception et de maitrise d’œuvre de projets industriels pour les industries des procédés.” Source: RevenueBase Database · checked Sep 17, 2026
21	IES	Indirect evidence	Notre Dame De Gravenchon, FranceHQ checked Sep 17, 2026	51-200	110 contacts →
	Indirect evidence “L’ingénierie à taille humaine sur l’Axe Seine Le Havre-Rouen Implantés à Port-Jérôme-sur-Seine et Grand Couronne, nous accompagnons les acteurs des secteurs stratégiques …” Source: RevenueBase Database · checked Sep 17, 2026
22	Oneside	Indirect evidence	Paris, FranceHQ checked Sep 17, 2026	51-200	107 contacts →
	Indirect evidence “Société de conseil en ingénierie, nous proposons notre expertise dans 3 domaines - Énergies & Industrie - Infrastructures Ferroviaires - Génie civil & Bâtiment.” Source: RevenueBase Database · checked Sep 17, 2026
23	OTIMO	Indirect evidence	Boulogne-billancourt, FranceHQ checked Sep 17, 2026	51-200	106 contacts →
	Indirect evidence “otimo est une société de conseil en ingénierie spécialisée dans les secteurs de l'Énergie, l'Environnement et les Infrastructures.” Source: RevenueBase Database · checked Sep 17, 2026
24	OTCE	Indirect evidence	Toulouse, FranceHQ checked Sep 17, 2026	51-200	102 contacts →
	Indirect evidence “OTCE est un groupe de bureaux d'ingénierie et d'études techniques répartis sur 12 sites en France et au Liban.” Source: RevenueBase Database · checked Sep 17, 2026
25	IMING	Partial evidence	Montrouge, FranceHQ checked Sep 17, 2026	51-200	100 contacts →
	Partial evidence “IMING is an expert in the engineering of highly technical projects, covering the entire value chain in the fields of mobility services, energy and construction.” 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: refinery 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 refinery engineering firms.
Partial evidence: Its own public description names part of refinery engineering firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name refinery 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 25 of 1,207 refinery engineering firms based in France

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Refinery engineering firms based in France at a glance

As of Sep 17, 2026

33.1%Verified-email coverage

19.6Average contacts per company

1-10Median size (employees)

8.2%Largest-city concentration · Paris

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

724

11-50

350

51-200

103

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 1,207 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 refinery 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 “refinery 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 refinery 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 refinery 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, 7,831 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.

Refinery engineering firms by metro

Refinery engineering firms in Paris99
Refinery engineering firms in Lyon37

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 refinery 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 refinery engineering firms are there based in France?

RevenueBase identified 1,207 refinery 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?

EKIUM, headquartered in France, tops this list with the largest team on record.

Which city has the most refinery engineering firms?

Paris leads with 99 headquartered companies, followed by Lyon (37) and Toulouse (18).

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 7,831 verified decision-maker contacts tracked across these 1,207 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.