ALTEN Group in

FRANCE

Established since 1988, France is the historic heart of the ALTEN Group and remains its primary engine of growth, representing nearly 35% of its revenue by the end of 2025. With 16 strategic locations across the country, ALTEN France supports key players in industry and services in tackling technological and engineering challenges.

Its expertise spans 12 major sectors, from Aeronautics to Energy, including Mobility, Finance, and many other key industries. To go even further, ALTEN France relies on a network of specialized subsidiaries, providing cutting-edge and innovative solutions tailored to the challenges of tomorrow, such as AI and Data.

Rooted in a thriving ecosystem of excellence, ALTEN France embodies innovation, expertise, and strategic support for its clients.

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Where to find us?

Find on the map locations of main offices of all Group entities.

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ALTEN FRANCE key figures

€ 1418,8M

2025 Revenue

13600

employees in 2025

agencies

FRANCE

Where to find us?

Alten Core business

Specialised affiliates

Agencies in Paris (Boulogne-Billancourt)

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

ALTEN FRANCE key figures