A-Z Index of U.S. Government Departments and Agencies
Find contact information for U.S. federal government departments and agencies including websites, emails, phone numbers, addresses, and more. Get contact information for each state and territory.
A
- AbilityOne Commission
- Access Board
- Administration for Children and Families (ACF)
- Administration for Community Living
- Administration for Native Americans
- Administrative Conference of the United States
- Administrative Office of the U.S. Courts
- Advisory Council on Historic Preservation
- African Development Foundation
- Agency for Global Media
- Agency for Healthcare Research and Quality (AHRQ)
- Agency for International Development (USAID)
- Agency for Toxic Substances and Disease Registry
- Agricultural Marketing Service (AMS)
- Agricultural Research Service
- Agriculture Department (USDA)
- Agriculture Library
- Air Force
- Air Force Reserve
- Alcohol and Tobacco Tax and Trade Bureau
- Alcohol, Tobacco, Firearms and Explosives Bureau (ATF)
- Alhurra TV
- American Battle Monuments Commission
- AmeriCorps
- AmeriCorps Seniors
- Amtrak (AMTRAK)
- Animal and Plant Health Inspection Service (APHIS)
- Antitrust Division
- Appalachian Regional Commission
- Architect of the Capitol
- Archives, National Archives and Records Administration (NARA)
- Arctic Research Commission
- Armed Forces Retirement Home
- Arms Control and International Security
- Army
- Army Corps of Engineers
- Arthritis, Musculoskeletal and Skin Diseases, National Institute of