Overview

Groupe Foselev is an independent French industrial group founded in 1970 and headquartered in Aix-en-Provence, France. It is estimated to employ between 1,000 and 5,000 people, with revenue in the $500M to $1B band (estimated). The group provides welding, sheet metal, industrial prefabrication, lifting, logistics, modular construction and maintenance services to construction, industry, nuclear energy, aerospace, automotive and renewable energy customers. In 2026 it reported plans to expand its Dunkirk presence and to double its workforce at La Seyne to meet defense orders.

At a glance

What Groupe Foselev makes

The company holds ISO 9001 certification and offers welding, machining, assembly and steel fabrication services, with a stated 35-plus years of experience in the nuclear sector.

Products and capabilities described on the company's own site include Welding, Machining, Assembly, Steel (source: foselev.com).

Certifications

Groupe Foselev is associated with the following certifications in public sources. Confirm the certified scope for the specific plant producing your part:

• ISO 9001 — foselev.com

Latest developments

• 2026-10-14 — Défense : à La Seyne, Foselev pourrait doubler ses effectifs pour faire face à 10 ans de commandes (nicematin.com)

• 2026-07-22 — Services à l'industrie : le groupe provençal Foselev se renforce à Dunkerque - Les Echos (lesechos.fr)

• 2026-06-17 — L’aixois Foselev accélère en Hauts-de-France pour se positionner sur les grands projets industriels (lejournaldesentreprises.com)

• 2026-06-16 — Dunkerque : le groupe Foselev se développe, porté par la réindustrialisation | La Gazette France (lagazettefrance.fr)

• 2026-04-28 — Partenaire industriel de référence dans le Dunkerquois depuis plus de 20 ans (foselev.com)

• 2026-04-03 — 🚨📢 Breaking news 📢🚨 Groupe FOSELEV a choisi d'investir à Troyes 📍dans une nouvelle agence,version 2.0, qui lui offre une capacité de stockage intérieur et extérieur a la hauteur de leur engagement,ainsi … | Eddy WALCZYNA (linkedin.com)

Company details

Groupe Foselev is privately held, reports about 3,300 employees across 139 local agencies in France and abroad, and works with clients including EDF, ORANO and the CEA. Groupe Foselev was founded in 1970, has an estimated 1,000-5,000 employees, and is headquartered in Aix-en-Provence, Provence-Alpes-Cote d'Azur. On the LightSource stability read it is rated "Established & active": 56 years in operation (founded 1970). Holds ISO 9001 certification(s) per public sources.

Frequently asked questions

What does Groupe Foselev make?

Groupe Foselev is an independent French industrial group founded in 1970 and headquartered in Aix-en-Provence, France. It is estimated to employ between 1,000 and 5,000 people, with revenue in the $500M to $1B band (estimated). The group provides welding, sheet metal, industrial prefabrication, lifting, logistics, modular construction and maintenance services to construction, industry, nuclear energy, aerospace, automotive and renewable energy customers. In 2026 it reported plans to expand its Dunkirk presence and to double its workforce at La Seyne to meet defense orders.

Where is Groupe Foselev headquartered?

Groupe Foselev is headquartered in Aix-en-Provence, Provence-Alpes-Cote d'Azur.

When was Groupe Foselev founded?

Groupe Foselev was founded in 1970.

How big is Groupe Foselev?

Groupe Foselev has an estimated 1,000-5,000 employees, with revenue in the $500M-1B range (estimated).

What certifications does Groupe Foselev hold?

Groupe Foselev lists ISO 9001 on its website. Confirm the certified scope for the specific plant producing your part.

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Last verified Nov 2026. Is this your company? Request a correction.