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US Department of Defense 

• Air National Guard
• US Department of Defense HQ
• US Department of Defense – Office of the Secretary
• Defense Information Systems Agency
• Defense Spectrum Organization / Joint Spectrum Center
• Defense Logistics Agency
• Defense Threat Reduction Agency
• Washington Headquarters Service
• US Central Command
• US Indo-Pacific Command
• US Special Operations Command
• US Special Operations Command Pacific

US Air Force

• Air Combat Command
• Pacific Air Forces
• Air Force Space Command
• Air Education & Training Command
• Air Force Materiel Command
• Air Force Cryptologic Office

US Army

• Army Program Executive Offices
• Army Communications and Electronics Command
• Army Intelligence and Security Command
• Army Assembled Chemical Weapons Alternatives
• Army Aviation & Missile Command
• Army Special Operations Command
• Army Contracting Command
• Army Corps of Engineers
• Army Materiel Command
• Army Sustainment Command
• Army TACOM Life Cycle Management Command
• Army Training & Doctrine Command

US Navy / Marines

• Marine Corps Systems Command
• Naval Air Systems Command
• Space and Naval Warfare Systems Command
• Naval Supply Systems Command
• Naval Sea Systems Command
• Naval Ordnance Safety and Security Activity
• Naval Surface Warfare Centers
• Naval Undersea Warfare Center
• Regional Maintenance Centers
• Naval Information Forces
• Naval Information Warfare Center
• Naval Information Warfighting Development Center
• Navy Marine Corps Spectrum Center
• Naval Education and Training Command

US Department of Energy

• Office of Environmental Management
• National Nuclear Security Administration
• Office of Fossil Energy
• Office of Science
• Office of Legacy Management
• Office of Naval Reactors
• Office of Nuclear Energy

US Intelligence Community

• Various Organizations

NASA

• Various Organizations

Department of Homeland Security 

• DHS Headquarters
• Customs & Border Protection
• Federal Emergency Management Agency
• Immigration and Customs Enforcement
• United States Citizenship and Immigration Services
• Transportation Security Administration

General Services Administration 

• Various Organizations

US Department of the Treasury 

• Various Organizations

US Department of State

US Department of Justice

• US Marshals Service

Department of Transportation

Federal Aviation Administration

Federal Bureau of Prisons

Federal Deposit Insurance Corporation 

Social Security Administration

US Department of Health & Human Services 

US Centers for Disease Control & Prevention 

National Institute for Occupational Safety & Health

Tennessee Valley Authority 

State/Local

• City of Aiken, SC
• Pennsylvania Department of Environmental Protection

International

• Australian Department of Defence – Capability Acquisition and Sustainment Group
• British Antarctic Survey
• Canadian Nuclear Laboratories Ltd
• Department of National Defence / Canadian Armed Forces
• Australian Commonwealth Science and Industrial Research Organisation
• Australian Nuclear Science and Technology Organisation
• Australian Department of Industry, Innovation and Science
• NATO Headquarters
• NATO – International Security Assistance Force Afghanistan
• UK Environment Agency
• UK Nuclear Decommissioning Authority
• UK Ministry of Defence’s Atomic Weapons Establishment