Company lists · Data refreshed September 2026

Top 25 Welding and assembly manufacturers based in France

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

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 845 companies tracked

RevenueBase identified 845 welding and assembly manufacturers headquartered in France as of September 2026 and tracks 10,501 professional contacts across them, including 2,897 with verified work emails. Paris is the largest hub.

This list covers welding and 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 19, 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 19, 2026 86% judged on-target in blind review

845Companies

10,501Contacts tracked

2,897Verified emails

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The 25 largest welding and assembly manufacturers based in France

Ranked by team size

Top 25 of 845 welding and assembly manufacturers based in France, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to welding and 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	Lisi Aerospace	Indirect evidence	Paris, FranceHQ checked Sep 19, 2026	5,001-10,000	2,794 contacts →
	Indirect evidence “Have you ever wondered what an airplane is made of?” Source: RevenueBase Database · checked Sep 19, 2026
2	Potez Aeronautique	Partial evidence	Aire Sur L'adour, FranceHQ checked Sep 19, 2026	1,001-5,000	607 contacts →
	Partial evidence “The POTEZ Group, the offspring of a long-standing tradition of aircraft manufacturers, operates in both the domestic and the international market.” Source: RevenueBase Database · checked Sep 19, 2026
3	Monteiro	Indirect evidence	Pierrelatte, FranceHQ checked Sep 19, 2026	501-1,000	585 contacts →
	Indirect evidence “Monteiro, société historique du groupe M, est une entreprise industrielle française au service des industries bas carbone.” Source: RevenueBase Database · checked Sep 19, 2026
4	ARO Welding Technologies	Partial evidence	Montval Sur Loir, FranceHQ checked Sep 19, 2026	501-1,000	238 contacts →
	Partial evidence “The ARO Group is a specialist in resistance welding technology designing and supplying robotic guns, manual guns, stationary welding machines, MBR equipment and specialised…” Source: RevenueBase Database · checked Sep 19, 2026
5	Mecahers Group	Partial evidence	Launaguet, FranceHQ checked Sep 19, 2026	501-1,000	155 contacts →
	Partial evidence “MECAHERS est une filiale du groupe MECACHROME, spécialisée dans la tôlerie, l’assemblage, l’usinage, le traitement de surface et les composites.” Source: RevenueBase Database · checked Sep 19, 2026
6	Polysoude S.A.S	Strong evidence	Nantes, FranceHQ checked Sep 19, 2026	201-500	143 contacts →
	Strong evidence “POLYSOUDE designs, manufactures and markets all kinds of equipment using arc welding processes- Orbital welding: tube to tube and tube to tubesheet in every size and wall…” Source: RevenueBase Database · checked Sep 19, 2026
7	Oxymetal	Indirect evidence	Bordeaux, FranceHQ checked Sep 19, 2026	201-500	135 contacts →
	Indirect evidence “The OXYMETAL group is the outright leading industrial cutting firm in France- 9 production plants - 400 staff ready to serve you - €63 M turnover - 2500 active customers - T steel…” Source: RevenueBase Database · checked Sep 19, 2026
8	GNT Industrie Maintenance	Indirect evidence	Champigneulles, FranceHQ checked Sep 19, 2026	201-500	78 contacts →
	Indirect evidence “Ensemblier Industriel \| Process-Génie électromécanique-Thermique industrielle-Tuyauterie-Chaudronnerie-Chauffage urbain” Source: RevenueBase Database · checked Sep 19, 2026
9	Slts Metal Solutions	Indirect evidence	Saint Lambert La Potherie, FranceHQ checked Sep 19, 2026	51-200	77 contacts →
	Indirect evidence “Pour ses clients du ferroviaire, de la mobilité terrestre, de l’aéronautique, du médical, de la marine et de l’industrie, SLTS conçoit et produit depuis 40 ans des pièces…” Source: RevenueBase Database · checked Sep 19, 2026
10	Selectarc Welding & Brazing	Strong evidence	Grandvillars, FranceHQ checked Sep 19, 2026	51-200	70 contacts →
	Strong evidence “We are a French manufacturer of innovative welding and brazing products, a significant operator in the international market.” Source: RevenueBase Database · checked Sep 19, 2026
11	Sdms LA Chaudronnerie Blanche	Indirect evidence	Saint Romans, FranceHQ checked Sep 19, 2026	51-200	67 contacts →
	Indirect evidence “SDMS, société indépendante d'une centaine de personnes, est fabriquant d'équipements et de sous-ensembles réalisés à partir de métaux nobles (aciers inoxydables, aluminium…” Source: RevenueBase Database · checked Sep 19, 2026
12	Guillet SAS	Indirect evidence	Duppigheim, FranceHQ checked Sep 19, 2026	51-200	66 contacts →
	Indirect evidence “GUILLET- 15 m2 dédiés à la Fabrication d’ensemble industriels sur mesure en Inox-Alu-Acier.” Source: RevenueBase Database · checked Sep 19, 2026
13	Gestamp Sofedit - LE Theil	Indirect evidence	Val Au Perche, FranceHQ checked Sep 19, 2026	1,001-5,000	58 contacts →
	Indirect evidence “Gestamp Sofedit à Val au Perche, vous connaissez?” Source: RevenueBase Database · checked Sep 19, 2026
14	Bronze ALU Group	Indirect evidence	La Couture Boussey, FranceHQ checked Sep 19, 2026	51-200	57 contacts →
	Indirect evidence “Bronze Alu conçoit, industrialise et fabrique des pièces et ensembles mécaniques” Source: RevenueBase Database · checked Sep 19, 2026
15	Claisse Environnement	Indirect evidence	Saint-andré-lez-lille, FranceHQ checked Sep 19, 2026	51-200	55 contacts →
	Indirect evidence “Créée en 1958, Claisse Environnement est depuis toujours implantée à Saint-André-lez-Lille.” Source: RevenueBase Database · checked Sep 19, 2026
16	Adecam Industrie	Indirect evidence	La Chapelle-basse-mer, FranceHQ checked Sep 19, 2026	51-200	47 contacts →
	Indirect evidence “Adecam Industrie est une société créée en 1992 à proximité de Nantes.” Source: RevenueBase Database · checked Sep 19, 2026
17	Otima Industries	Indirect evidence	Région De Rennes, FranceHQ checked Sep 19, 2026	51-200	45 contacts →
	Indirect evidence “OTIMA Industries est une entreprise spécialisée dans la sous-traitance industrielle en tôlerie fine située à Fougères, à proximité de Rennes.” Source: RevenueBase Database · checked Sep 19, 2026
18	Oxymax	Partial evidence	Sizun, FranceHQ checked Sep 19, 2026	51-200	43 contacts →
	Partial evidence “Oxymax Transformation de métaux en sous-traitance industrielle : Découpe Laser, Oxycoupage, Découpe Jet d'eau, Formage, Roulage, Pliage, Soudure, Assemblage, Usinage, Inox, Acier…” Source: RevenueBase Database · checked Sep 19, 2026
19	Lacmil	Indirect evidence	Le Havre, FranceHQ checked Sep 19, 2026	51-200	38 contacts →
	Indirect evidence “Depuis 1970, LACMIL vous accompagne dans vos projets d'usinage de pièces de moyennes et grandes dimensions, de mécano-soudure et de projection thermique.” Source: RevenueBase Database · checked Sep 19, 2026
20	Sotech Technologies Services	Indirect evidence	Bergerac, FranceHQ checked Sep 19, 2026	51-200	38 contacts →
	Indirect evidence “Sotech Technologies Services (STS) est une entreprise de sous-traitance reprise en avril 2018 et appartenant au groupe familial VSB Industrie.” Source: RevenueBase Database · checked Sep 19, 2026
21	DI Sante	Indirect evidence	Saint Jean De Maurienne, FranceHQ checked Sep 19, 2026	51-200	36 contacts →
	Indirect evidence “DI SANTE est une entreprise familiale créée en 1984 par Dominique DI SANTE.” Source: RevenueBase Database · checked Sep 19, 2026
22	Devismes	Indirect evidence	Feuquieres-en-vimeu, FranceHQ checked Sep 19, 2026	51-200	35 contacts →
	Indirect evidence “Implantée en Picardie à 1h30 au nord de Paris (autoroutes A1 et A16), DEVISMES S.A.” Source: RevenueBase Database · checked Sep 19, 2026
23	Ateliers Roche	Indirect evidence	Reims, FranceHQ checked Sep 19, 2026	11-50	32 contacts →
	Indirect evidence “Ateliers Roche : Le sur-mesure industriel Ateliers Roche, filiale dédiée du Groupe CIF dans la mécanosoudure, l’usinage de moyenne dimension et la gestion de projets d'industriels…” Source: RevenueBase Database · checked Sep 19, 2026
24	FSM	Partial evidence	Bar-le-duc, FranceHQ checked Sep 19, 2026	51-200	31 contacts →
	Partial evidence “La société F.S.M de l’activité Manufacturing est spécialisée depuis 1972, dans la sous-traitance en montage et assemblage, usinage, grenaillage et peinture et mécano-soudure de…” Source: RevenueBase Database · checked Sep 19, 2026
25	Techni Industrie	Indirect evidence	Bonchamp, FranceHQ checked Sep 19, 2026	201-500	30 contacts →
	Indirect evidence “Avec près de 40 ans d’expérience, Techni Industrie se positionne comme un acteur clé sur le marché de la mécano-soudure et de la chaudronnerie industrielle.” Source: RevenueBase Database · checked Sep 19, 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: welding and 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 welding and assembly manufacturers.
Partial evidence: Its own public description names part of welding and assembly manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name welding and 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 845 welding and assembly manufacturers based in France

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Welding and assembly manufacturers based in France at a glance

As of Sep 19, 2026

27.6%Verified-email coverage

12.4Average contacts per company

11-50Median size (employees)

0.6%Largest-city concentration · Paris

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

369

11-50

380

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 845 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 welding and 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 “welding and 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 welding and 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 welding and 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, 2,897 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 19, 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 welding and 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 welding and assembly manufacturers are there based in France?

RevenueBase identified 845 welding and 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?

Lisi Aerospace, headquartered in Paris, tops this list with the largest team on record.

Which city has the most welding and assembly manufacturers?

Paris leads with 5 headquartered companies, followed by Toulouse (4) and Annecy (3).

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 2,897 verified decision-maker contacts tracked across these 845 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 19, 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.