Le Groupe ALTEN en

FRANCE

Présente depuis 1988, la France est le cœur historique du Groupe ALTEN et constitue son principal moteur de croissance, représentant fin 2025 près de 35 % de son chiffre d’affaires. Avec 16 implantations stratégiques couvrant l’ensemble du territoire, ALTEN France accompagne les grands acteurs de l’industrie et des services dans leurs défis technologiques et d’ingénierie.

Son expertise s’étend à 12 secteurs d’activité majeurs, allant de l’Aéronautique à l’Énergie, en passant par les Mobilités, la Finance et bien d’autres domaines clés. Pour aller encore plus loin, ALTEN France s’appuie sur un réseau de filiales spécialisées, apportant des solutions pointues et innovantes adaptées aux enjeux de demain comme l’IA ou la Data.

Enracinée dans un écosystème d’excellence, ALTEN France incarne l’innovation, l’expertise et l’accompagnement stratégique au service de ses clients.

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Où nous trouver en France ?

Retrouvez sur la carte les implantations des principaux sites de toutes les entités du Groupe

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Les chiffres clés d’ALTEN en France

1 418,8 m€

Chiffre d’affaires en 2025

13 600

Collaborateurs en 2025

Agences

FRANCE

Où nous trouver en France ?

Alten Core business

Filiales spécialisées

Agencies in Paris

Agencies in Toulouse

Agencies in Lyon

Agencies in Grenoble

Agencies in Louviers

Agencies in Aix-en-Provence

Agencies in Nantes

Agencies in Rennes

Agencies in Bordeaux

Agencies in Lille

Agencies in Cherbourg

Agencies in La Rochelle

Agencies in Nice

Agencies in Marseille

Agencies in Saint-Nazaire

Agencies in Brest

Agencies in Toulon

Agencies in Tours

Agencies in Strasbourg

Agencies in Mulhouse

Agencies in Vitrolles

Agencies in Sèvres

Agencies in La Seyne-sur-Mer

Agencies in Montpellier

Agencies in Lorient

Agencies in Bezons

Agencies in Echirolles

Les chiffres clés d’ALTEN en France