International Business Machines headquarters details
- Street address
- 6300 Diagonal Hwy
- City
- Boulder
- State / region
- Colorado
- ZIP / postal code
- 80301-9270
- Country
- United States
- Phone
- +1 248 552 4021
- Website
- ibm.com
Location map
Open in Google MapsAll International Business Machines office locations
| City | State / region | Country | Type |
|---|---|---|---|
| Boulder HQ | Colorado | United States | Headquarters |
Showing the headquarters of 27 recorded locations. See every location in GraphIQ →
About International Business Machines
International Business Machines is headquartered in Boulder, Colorado, United States. The company has 27 recorded locations across 5+ countries and employs approximately 4,500 people worldwide.
Where is International Business Machines's main office?
International Business Machines's main headquarters office is located at 6300 Diagonal Hwy, Boulder, Colorado 80301-9270, United States. This is the company's primary corporate address.
International Business Machines regional offices
Beyond its headquarters in Boulder, International Business Machines has recorded locations in United States, Norway, Spain, Switzerland and United Kingdom.
International Business Machines contact information
The main switchboard for International Business Machines headquarters can be reached at +1 248 552 4021. Official website: ibm.com.
What does International Business Machines do?
International Business Machines is a manufacturing company currently based in Boulder, Colorado, United States.
Frequently asked questions
Where is International Business Machines headquarters?
International Business Machines's headquarters is located at 6300 Diagonal Hwy, Boulder, Colorado 80301-9270, United States.
How many offices does International Business Machines have?
GraphIQ records 27 locations for International Business Machines across 5+ countries, as of October 2026.
What is International Business Machines's corporate address?
The corporate headquarters address is 6300 Diagonal Hwy, Boulder, Colorado 80301-9270, United States.
What is International Business Machines's phone number?
The main phone number for International Business Machines headquarters is +1 248 552 4021.
How many employees does International Business Machines have?
International Business Machines has approximately 4,500 employees (GraphIQ estimate, 2026).