Amgen headquarters details
Thousand Oaks, California, United States
Thousand Oaks
California
91360
United States
1980
Location map
Open in Google MapsAll Amgen office locations
| City | State / region | Country | Type |
|---|---|---|---|
| Thousand Oaks HQ | California | United States | Headquarters |
About Amgen
Amgen (Nasdaq (NASDAQ): AMGN) is headquartered in Thousand Oaks, California, United States. Founded in 1980, the company operates across 10 countries with approximately 31,500 employees worldwide.
Where is Amgen's main office?
Amgen's main headquarters office is located at Thousand Oaks, California, United States, Thousand Oaks, California 91360. This serves as the company's primary corporate address and is home to its executive leadership team.
Amgen regional offices
Beyond its headquarters in Thousand Oaks, Amgen maintains 26 offices across 10 countries. Regional offices span 10 countries.
Amgen contact information
The main switchboard for Amgen headquarters can be reached at 1-805-447-1000. For investor relations, visit amgen.com/investor-relations.
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.
Frequently asked questions
Where is Amgen headquarters?
Amgen's headquarters is located at Thousand Oaks, California, United States, Thousand Oaks, California 91360, United States.
How many offices does Amgen have?
Amgen operates 26 offices across 10 countries as of 2026.
What is Amgen's corporate address?
The official corporate address is Thousand Oaks, California, United States, Thousand Oaks, California 91360.
When was Amgen founded?
Amgen was founded in 1980 and has grown to employ approximately 31,500 people worldwide.
What is Amgen's phone number?
The main phone number for Amgen headquarters is 1-805-447-1000.