Company lists · Data refreshed September 2026

Top 25 Engineering outsourcing firms based in France

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

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 1,160 companies tracked

RevenueBase identified 1,160 engineering outsourcing firms headquartered in France as of September 2026 and tracks 30,402 professional contacts across them, including 10,277 with verified work emails. Paris is the largest hub.

This list covers engineering outsourcing 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

1,160Companies

30,402Contacts tracked

10,277Verified emails

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The 25 largest engineering outsourcing firms based in France

Ranked by team size

Top 25 of 1,160 engineering outsourcing 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 engineering outsourcing 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	Groupe SII	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	10001+	4,928 contacts →
	Indirect evidence “Le groupe SII est une société d’ingénierie et de conseil en technologies (ICT) et une entreprise de services numériques (ESN) créée en 1979 par Bernard HUVÉ, ingénieur de…” Source: RevenueBase Database · checked Sep 28, 2026
2	Apside	Indirect evidence	Boulogne-billancourt, FranceHQ checked Sep 28, 2026	1,001-5,000	1,537 contacts →
	Indirect evidence “We are true to our word Expertise, trust, careers For 36 years, Apside has cooperated with the largest French and European groups on their IT and scientific projects.” Source: RevenueBase Database · checked Sep 28, 2026
3	EKIUM	Indirect evidence	Lyon Cedex 07, FranceHQ checked Sep 28, 2026	1,001-5,000	1,502 contacts →
	Indirect evidence “Welcome to Ekium!” Source: RevenueBase Database · checked Sep 28, 2026
4	T&s Technology & Strategy	Indirect evidence	Schiltigheim, FranceHQ checked Sep 28, 2026	1,001-5,000	922 contacts →
	Indirect evidence “Fondée en 2008, T&S est une entreprise spécialisée dans l'ingénierie, le digital et le conseil.” Source: RevenueBase Database · checked Sep 28, 2026
5	Viveris	Partial evidence	Boulogne-billancourt, FranceHQ checked Sep 28, 2026	1,001-5,000	833 contacts →
	Partial evidence “Viveris is a consulting and engineering company with two main activities - IT consulting.” Source: RevenueBase Database · checked Sep 28, 2026
6	Parlym	Partial evidence	Estaque, FranceHQ checked Sep 28, 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 28, 2026
7	ABMI	Indirect evidence	Nanterre, FranceHQ checked Sep 28, 2026	501-1,000	661 contacts →
	Indirect evidence “Nous sommes une entreprise d’ingénierie multi spécialiste au cœur des grands enjeux autour de la mobilité, de l’énergie, de la santé et des produits et biens de consommation.” Source: RevenueBase Database · checked Sep 28, 2026
8	MCA	Partial evidence	Levallois-perret, FranceHQ checked Sep 28, 2026	1,001-5,000	648 contacts →
	Partial evidence “MCA is an international engineering and high-tech company that empowers talent and partners with top companies to realize cutting-edge projects.” Source: RevenueBase Database · checked Sep 28, 2026
9	Prime Engineering France	Partial evidence	Boulogne Billancourt, FranceHQ checked Sep 28, 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 28, 2026
10	Latesys - Groupe ADF	Indirect evidence	Sainte Foy D'aigrefeuille, FranceHQ checked Sep 28, 2026	501-1,000	533 contacts →
	Indirect evidence “LATESYS filiale de GROUPE ADF, est une entreprise européenne leader sur son marché.” Source: RevenueBase Database · checked Sep 28, 2026
11	Ametra Engineering	Indirect evidence	Clamart, FranceHQ checked Sep 28, 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 28, 2026
12	Cleeven	Indirect evidence	Lyon, FranceHQ checked Sep 28, 2026	501-1,000	359 contacts →
	Indirect evidence “QUI SOMMES NOUS?@CLEEVEN, cabinet de conseil en ingénierie, s'est construit autour de 2 convictions extrêmement fortes - L'excellence des Ingénieurs européens doit permettre à…” Source: RevenueBase Database · checked Sep 28, 2026
13	ECM Engineering Conception Maintenance	Partial evidence	Paris, FranceHQ checked Sep 28, 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 28, 2026
14	FEV France	Indirect evidence	Trappes, FranceHQ checked Sep 28, 2026	201-500	322 contacts →
	Indirect evidence “est une société d’ingénierie et de conseil spécialisée dans le développement des groupes motopropulseurs, des véhicules et des infrastructures et solutions d’énergie.” Source: RevenueBase Database · checked Sep 28, 2026
15	Elitys	Indirect evidence	Boulogne-billancourt, FranceHQ checked Sep 28, 2026	201-500	270 contacts →
	Indirect evidence “Elitys accompagne depuis plus de 15 ans ses clients dans leurs projets en Industrie et en Life Science.” Source: RevenueBase Database · checked Sep 28, 2026
16	Sophia Engineering	Partial evidence	Sophia Antipolis, FranceHQ checked Sep 28, 2026	201-500	211 contacts →
	Partial evidence “SOPHIA ENGINEERING is a multi-sector and multi-discipline provider of scientific and technical engineering consulting services.” Source: RevenueBase Database · checked Sep 28, 2026
17	Ep2c	Indirect evidence	Balma, FranceHQ checked Sep 28, 2026	501-1,000	211 contacts →
	Indirect evidence “EP2C recruits talents looking for an international career.” Source: RevenueBase Database · checked Sep 28, 2026
18	Acaly Conseil EN Ingénierie	Indirect evidence	Lille, FranceHQ checked Sep 28, 2026	201-500	188 contacts →
	Indirect evidence “ACALY CONSULTING Nous accompagnons nos clients sur des problématiques techniques ou organisationnelles sur un sujet défini.” Source: RevenueBase Database · checked Sep 28, 2026
19	Alcadia Entreprises	Indirect evidence	Lyon, FranceHQ checked Sep 28, 2026	51-200	166 contacts →
	Indirect evidence “Alcadia est une entreprise de conseil en ingénierie spécialisée dans les domaines technologiques à forte valeur ajoutée.” Source: RevenueBase Database · checked Sep 28, 2026
20	Axodyn	Indirect evidence	Limonest, FranceHQ checked Sep 28, 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 28, 2026
21	DSI Group	Partial evidence	Massy, FranceHQ checked Sep 28, 2026	51-200	144 contacts →
	Partial evidence “As part of the french consulting group DSI GROUP, DSI GLOBAL SERVICES is an engineering services company.” Source: RevenueBase Database · checked Sep 28, 2026
22	Setec Énergie Environnement	Partial evidence	Paris, FranceHQ checked Sep 28, 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 28, 2026
23	Groupe Pharea	Indirect evidence	Lyon, FranceHQ checked Sep 28, 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 28, 2026
24	UP Technologies	Indirect evidence	Lyon, FranceHQ checked Sep 28, 2026	51-200	139 contacts →
	Indirect evidence “Up Technologies est une société de conseil pour l'industrie avec des agences sur Lyon, Grenoble, Clermont-Ferrand, Aix-en-Provence, Toulon, Nice Sophia, Toulouse et Paris.” Source: RevenueBase Database · checked Sep 28, 2026
25	Kali Group	Indirect evidence	Limonest, FranceHQ checked Sep 28, 2026	51-200	135 contacts →
	Indirect evidence “Kali Group, c’est un cabinet de conseil en ingénierie qui casse les codes.” Source: RevenueBase Database · checked Sep 28, 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: engineering outsourcing 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 engineering outsourcing firms.
Partial evidence: Its own public description names part of engineering outsourcing firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name engineering outsourcing 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 1,160 engineering outsourcing firms based in France

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Engineering outsourcing firms based in France at a glance

As of Sep 28, 2026

33.8%Verified-email coverage

26.2Average contacts per company

1-10Median size (employees)

9.1%Largest-city concentration · Paris

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

684

11-50

321

51-200

115

201-500

501-1,000

1,001-5,000

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 1,160 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 engineering outsourcing 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 “engineering outsourcing 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 engineering outsourcing 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 engineering outsourcing 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, 10,277 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.

Engineering outsourcing 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 engineering outsourcing 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 engineering outsourcing firms are there based in France?

RevenueBase identified 1,160 engineering outsourcing 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?

Groupe SII, headquartered in Paris, tops this list with the largest team on record.

Which city has the most engineering outsourcing firms?

Paris leads with 106 headquartered companies, followed by Lyon (26) and Toulouse (20).

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 10,277 verified decision-maker contacts tracked across these 1,160 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 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.