Amgen headquarters details
- Street address
- One Amgen Center Drive
- City
- Thousand Oaks
- State / region
- California
- ZIP / postal code
- 91320-1799
- Country
- United States
- Phone
- +1 805 447 1000
- Founded
- 1980
- Website
- amgen.com
- Stock
- NASDAQ: AMGN
- linkedin.com/company/amgen
Location map
Open in Google MapsAll Amgen office locations
| City | State / region | Country | Type |
|---|---|---|---|
| Thousand Oaks HQ | California | United States | Headquarters |
Showing the headquarters of 26 recorded locations. See every location in GraphIQ →
About Amgen
Amgen (NASDAQ: AMGN) is headquartered in Thousand Oaks, California, United States. Founded in 1980, the company has 26 recorded locations across 10+ countries and employs approximately 31,500 people worldwide.
Where is Amgen's main office?
Amgen's main headquarters office is located at One Amgen Center Drive, Thousand Oaks, California 91320-1799, United States. This is the company's primary corporate address.
Amgen regional offices
Beyond its headquarters in Thousand Oaks, Amgen has recorded locations in United States, Belgium, Colombia, France, Hungary, Norway, Poland, Singapore and 2 other countries.
Amgen contact information
The main switchboard for Amgen headquarters can be reached at +1 805 447 1000. Official website: amgen.com.
What does Amgen do?
Amgen Inc. is an independent biotechnology medicines company that discovers, develops, manufactures, and markets medicines for grievous illnesses. The Company focuses on human therapeutics and concentrates on innovating novel medicines based on cellular and molecular biology.
Amgen competitors & similar companies
Frequently asked questions
Where is Amgen headquarters?
Amgen's headquarters is located at One Amgen Center Drive, Thousand Oaks, California 91320-1799, United States.
How many offices does Amgen have?
GraphIQ records 26 locations for Amgen across 10+ countries, as of October 2026.
What is Amgen's corporate address?
The corporate headquarters address is One Amgen Center Drive, Thousand Oaks, California 91320-1799, United States.
When was Amgen founded?
Amgen was founded in 1980 and employs approximately 31,500 people.
What is Amgen's phone number?
The main phone number for Amgen headquarters is +1 805 447 1000.
How many employees does Amgen have?
Amgen has approximately 31,500 employees (GraphIQ estimate, 2026).
Is Amgen a public company?
Yes. Amgen is publicly traded on NASDAQ under the ticker AMGN.