Company lists · Data refreshed September 2026

Top 25 Assembly manufacturers based in France

Name: Assembly manufacturers based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 147 companies tracked

RevenueBase identified 147 assembly manufacturers headquartered in France as of September 2026 and tracks 2,263 professional contacts across them, including 427 with verified work emails. Mondeville is the largest hub.

This list covers assembly manufacturers 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 30, 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 30, 2026 86% judged on-target in blind review

147Companies

2,263Contacts tracked

427Verified emails

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The 25 largest assembly manufacturers based in France

Ranked by team size

Top 25 of 147 assembly manufacturers based in France, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to assembly manufacturers: 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	OSE Group	Indirect evidence	Angers, FranceHQ checked Sep 30, 2026	201-500	194 contacts →
	Indirect evidence “For more than 30 years, we have been working alongside you to bring you a global solution with ever more innovation.” Source: RevenueBase Database · checked Sep 30, 2026
2	Neyret Group GUY Neyret SA & Lagniel SA & Neyret INC	Strong evidence	Chaponost, FranceHQ checked Sep 30, 2026	201-500	129 contacts →
	Strong evidence “The Neyret Group is a major player recognized worldwide as one of the greatest manufacturer of customized assembly, test and print machines with an accumulated know how of more…” Source: RevenueBase Database · checked Sep 30, 2026
3	Selva Electronique	Partial evidence	Vallet, FranceHQ checked Sep 30, 2026	51-200	59 contacts →
	Partial evidence “Selva, implantée à Vallet & Chalon-sur-Saône, est spécialisée dans la conception, la fabrication et l'assemblage de cartes électroniques.” Source: RevenueBase Database · checked Sep 30, 2026
4	Bronze ALU Group	Indirect evidence	La Couture Boussey, FranceHQ checked Sep 30, 2026	51-200	57 contacts →
	Indirect evidence “Bronze Alu conçoit, industrialise et fabrique des pièces et ensembles mécaniques” Source: RevenueBase Database · checked Sep 30, 2026
5	AS Industries	Partial evidence	Mérignac, FranceHQ checked Sep 30, 2026	11-50	51 contacts →
	Partial evidence “AS INDUSTRIES IS AN INDUSTRIAL SPECIALIST IN THE COMPLETE MANAGEMENT OF YOUR PROJECT Our strength is to allow European manufacturers to make gains from the prototyping phase…” Source: RevenueBase Database · checked Sep 30, 2026
6	Defi Group SAS	Partial evidence	Mitry-mory, FranceHQ checked Sep 30, 2026	501-1,000	38 contacts →
	Partial evidence “Spécialisé dans l'industrialisation et la production de produits par transformation des métaux et assemblage de fonctions, DEFI GROUP est fournisseur européen de premier rang des…” Source: RevenueBase Database · checked Sep 30, 2026
7	GMP Group	Indirect evidence	Saint-pierre En Faucigny, FranceHQ checked Sep 30, 2026	51-200	38 contacts →
	Indirect evidence “Combining state-of-the-art knowledge and technology of our companies, the GMP group offers a unique, tailor-made solution to even the most demanding customers.” Source: RevenueBase Database · checked Sep 30, 2026
8	Stal Industrie	Indirect evidence	Romorantin, FranceHQ checked Sep 30, 2026	51-200	36 contacts →
	Indirect evidence “10 m² de production à ROMORANTIN bureau d'études ateliers de fabrication métal et bois intégration de systèmes d'éclairage intégration de signalétiques atelier de préparation de…” Source: RevenueBase Database · checked Sep 30, 2026
9	ERIL	Indirect evidence	Pierre Bénite, FranceHQ checked Sep 30, 2026	11-50	29 contacts →
	Indirect evidence “En 2021, signataire de la charte FrenchFab, offreurs de solutions pour tous les projets industriels.” Source: RevenueBase Database · checked Sep 30, 2026
10	NGI	Indirect evidence	Mamers, FranceHQ checked Sep 30, 2026	11-50	25 contacts →
	Indirect evidence “NGI - Créateur de solutions Conception, fabrication & distribution de produits multi-matériaux pour l’industrie.” Source: RevenueBase Database · checked Sep 30, 2026
11	DGC Industries	Partial evidence	Magland, FranceHQ checked Sep 30, 2026	11-50	24 contacts →
	Partial evidence “Our expertise in traditional bar turning, CNC machining, and co-design, associated with a modern machinery enables us to manufacture a wide array of mechanical parts, from Ø2mm up…” Source: RevenueBase Database · checked Sep 30, 2026
12	Tipi3d	Indirect evidence	Le Haillan, FranceHQ checked Sep 30, 2026	11-50	23 contacts →
	Indirect evidence “TiPi3D – De l'idée à la pièce, tout est intégré.” Source: RevenueBase Database · checked Sep 30, 2026
13	Seeb Industrie	Indirect evidence	Chauffailles, FranceHQ checked Sep 30, 2026	51-200	22 contacts →
	Indirect evidence “De la conception à la mise en production, SEEB INDUSTRIE vous accompagne dans la réalisation de vos sous-ensembles et ensembles complets ainsi que dans l’usinage de pièces à forte…” Source: RevenueBase Database · checked Sep 30, 2026
14	Weil Industries	Indirect evidence	Duttlenheim, FranceHQ checked Sep 30, 2026	51-200	22 contacts →
	Indirect evidence “Développement et fabrication de produits innovants pour les secteurs à fortes exigences.” Source: RevenueBase Database · checked Sep 30, 2026
15	Chantreuil	Indirect evidence	Picauville, FranceHQ checked Sep 30, 2026	51-200	21 contacts →
	Indirect evidence “Depuis 30 ans, Chantreuil réalise des pièces et ensembles, usinés et chaudronnés.” Source: RevenueBase Database · checked Sep 30, 2026
16	E.S.P.A.C.E	Indirect evidence	Saint-andré-des-eaux, FranceHQ checked Sep 30, 2026	51-200	20 contacts →
	Indirect evidence “Depuis plus de 30 ans, la société E.S.P.A.C.E.” Source: RevenueBase Database · checked Sep 30, 2026
17	Weber Assemblages Automatiques	Partial evidence	Saint-jorioz, FranceHQ checked Sep 30, 2026	11-50	19 contacts →
	Partial evidence “Expert reconnu dans la création de solutions d'assemblages, WEBER Assemblages Automatiques, c'est avant tout une équipe de passionnés au service du client.” Source: RevenueBase Database · checked Sep 30, 2026
18	Acea EMS	Partial evidence	Gundershoffen, FranceHQ checked Sep 30, 2026	51-200	19 contacts →
	Partial evidence “At the heart of Europa, ACEA is your partner for industrialization, electronic board equipment and installation of assemblies and sub-assemblies.” Source: RevenueBase Database · checked Sep 30, 2026
19	ERTOP	Indirect evidence	Joigny, FranceHQ checked Sep 30, 2026	11-50	18 contacts →
	Indirect evidence “Depuis sa création en 1984, ERTOP pour Etude et Réalisation de TÔlerie de Précision, s'est imposée comme un acteur clé dans le domaine de la tôlerie fine et de la gestion de…” Source: RevenueBase Database · checked Sep 30, 2026
20	Groupe Cepm Industrie, Systèmes Mécaniques ET Outillages	Indirect evidence	Saint-priest En Jarez, FranceHQ checked Sep 30, 2026	11-50	17 contacts →
	Indirect evidence “CEPM Industrie vous apportent de solutions sur mesure pour la conception et la réalisation d'outillages, d'équipements industriels et de systèmes mécaniques : Depuis plus de 40…” Source: RevenueBase Database · checked Sep 30, 2026
21	Nordtole	Indirect evidence	Saint-amand-les-eaux, FranceHQ checked Sep 30, 2026	11-50	16 contacts →
	Indirect evidence “DE LA CO-CONCEPTION ET LA RÉALISATION FINALE Assistance du client dans le développement d’un nouveau produit, Fabrication avec toutes les opérations de valeur ajoutée : découpe…” Source: RevenueBase Database · checked Sep 30, 2026
22	Usimeca - Atcbe	Indirect evidence	Ormes, FranceHQ checked Sep 30, 2026	11-50	12 contacts →
	Indirect evidence “À l’origine, USIMECA est une entreprise de mécanique de précision basée à Beaugency.” Source: RevenueBase Database · checked Sep 30, 2026
23	ALBAX	Partial evidence	Mondeville, FranceHQ checked Sep 30, 2026	11-50	11 contacts →
	Partial evidence “ALBAX \| Expert en sous-ensembles mécaniques sur mesure Depuis plus de 20 ans, ALBAX conçoit, fabrique et assemble des sous-ensembles mécaniques intégrés et prêts à l'emploi pour…” Source: RevenueBase Database · checked Sep 30, 2026
24	Mondragon Assembly France	Partial evidence	Orange, FranceHQ checked Sep 30, 2026	51-200	10 contacts →
	Partial evidence “Mondragon Assembly France is an international group specialist in the development of automation and assembly solutions since 1994.” Source: RevenueBase Database · checked Sep 30, 2026
25	Miodex	Partial evidence	Magny Les Hameaux, FranceHQ checked Sep 30, 2026	1-10	10 contacts →
	Partial evidence “Miodex, fondée en 2012, est une entreprise innovante spécialisée dans la conception et la mise en œuvre de solutions d'assemblage industriel.” Source: RevenueBase Database · checked Sep 30, 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: assembly manufacturers. 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 assembly manufacturers.
Partial evidence: Its own public description names part of assembly manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name assembly manufacturers. 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 147 assembly manufacturers based in France

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Assembly manufacturers based in France at a glance

As of Sep 30, 2026

18.9%Verified-email coverage

15.4Average contacts per company

11-50Median size (employees)

1.4%Largest-city concentration · Mondeville

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 147 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 assembly manufacturers, 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 “assembly manufacturers”. 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 assembly manufacturers), 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 assembly manufacturers, 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, 427 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 30, 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 assembly manufacturers, 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 assembly manufacturers are there based in France?

RevenueBase identified 147 assembly manufacturers 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?

OSE Group, headquartered in Annemasse, tops this list with the largest team on record.

Which city has the most assembly manufacturers?

Mondeville leads with 2 headquartered companies, followed by Paris (2) and Venissieux (2).

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 427 verified decision-maker contacts tracked across these 147 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 30, 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.