American Petroleum Institute headquarters details
- City
- Washington
- State / region
- District of Columbia
- ZIP / postal code
- 20005
- Country
- United States
- Phone
- +1 202 682 8000
- Founded
- 1919
- Website
- api.org
- linkedin.com/company/api_2
Location map
Open in Google MapsAll American Petroleum Institute office locations
| City | State / region | Country | Type |
|---|---|---|---|
| Washington HQ | District of Columbia | United States | Headquarters |
Showing the headquarters of 25 recorded locations. See every location in GraphIQ →
About American Petroleum Institute
American Petroleum Institute is headquartered in Washington, District of Columbia, United States. Founded in 1919, the company has 25 recorded locations across 2+ countries and employs approximately 501 people worldwide.
Where is American Petroleum Institute's main office?
American Petroleum Institute's main headquarters office is located at Washington, District of Columbia 20005, United States. This is the company's primary corporate address.
American Petroleum Institute regional offices
Beyond its headquarters in Washington, American Petroleum Institute has recorded locations in United States and United Arab Emirates.
American Petroleum Institute contact information
The main switchboard for American Petroleum Institute headquarters can be reached at +1 202 682 8000. Official website: api.org.
What does American Petroleum Institute do?
American Petroleum Institute operates as representation for American oil and natural gas companies. The Company provides advocacy services for negotiations with government, legal, and regulatory agencies as well as research into economics effects, establishment and certification of industry standards, and education outreach.
Frequently asked questions
Where is American Petroleum Institute headquarters?
American Petroleum Institute's headquarters is located at Washington, District of Columbia 20005, United States.
How many offices does American Petroleum Institute have?
GraphIQ records 25 locations for American Petroleum Institute across 2+ countries, as of October 2026.
When was American Petroleum Institute founded?
American Petroleum Institute was founded in 1919 and employs approximately 501 people.
What is American Petroleum Institute's phone number?
The main phone number for American Petroleum Institute headquarters is +1 202 682 8000.
How many employees does American Petroleum Institute have?
American Petroleum Institute has approximately 501 employees (GraphIQ estimate, 2026).