ALTEN headquarters details
- City
- Boulogne-Billancourt
- State / region
- Île-de-France
- Country
- France
- Phone
- +33 1 46 08 70 00
- Founded
- 1988
- Website
- alten.com
- Stock
- Nasdaq Copenhagen A/S: ATE
- linkedin.com/company/alten
Location map
Open in Google MapsAll ALTEN office locations
| City | State / region | Country | Type |
|---|---|---|---|
| Boulogne-Billancourt HQ | Île-de-France | France | Headquarters |
Showing the headquarters of 187 recorded locations. See every location in GraphIQ →
About ALTEN
ALTEN (Nasdaq Copenhagen A/S: ATE) is headquartered in Boulogne-Billancourt, Île-de-France, France. Founded in 1988, the company has 187 recorded locations and employs approximately 57,400 people worldwide.
Where is ALTEN's main office?
ALTEN's main headquarters office is located at Boulogne-Billancourt, Île-de-France, France. This is the company's primary corporate address.
ALTEN regional offices
Beyond its headquarters in Boulogne-Billancourt, ALTEN has recorded locations in France.
ALTEN contact information
The main switchboard for ALTEN headquarters can be reached at +33 1 46 08 70 00. Official website: alten.com.
What does ALTEN do?
Alten operates as a technology consulting company. The Company specializes in engineering and IT services. Alten serves aeronautics, space, defense, security, automotive, rail, energy, life sciences, finance, retail, telecommunications, and services sectors worldwide.
ALTEN competitors & similar companies
Frequently asked questions
Where is ALTEN headquarters?
ALTEN's headquarters is located at Boulogne-Billancourt, Île-de-France, France.
How many offices does ALTEN have?
GraphIQ records 187 locations for ALTEN, as of October 2026.
When was ALTEN founded?
ALTEN was founded in 1988 and employs approximately 57,400 people.
What is ALTEN's phone number?
The main phone number for ALTEN headquarters is +33 1 46 08 70 00.
How many employees does ALTEN have?
ALTEN has approximately 57,400 employees (GraphIQ estimate, 2026).
Is ALTEN a public company?
Yes. ALTEN is publicly traded on Nasdaq Copenhagen A/S under the ticker ATE.