The US Department of Energy/NNSA
- NA-21
- NA-22
- NA-24
- NA-25
- DOE/NE
US National Laboratories
- Idaho National Laboratory
- Los Alamos National Laboratory
- Lawrence Livermore National Laboratory
- Oak Ridge National Laboratory
- Pacific Northwest National Laboratory
- Sandia National Laboratory
- Savannah River National Laboratory
The US Department of Homeland Security
- Domestic Nuclear Detection Office (DNDO)
- National Technical Nuclear Forensics Center (NTNFC)
- Science & Technology Directorate
The US Department of Defense
- Air Force Technical Applications Center (AFTAC)
- Office of the Deputy Assistant to the Secretary of Defense for Nuclear Matters (ODATSD-NM)
- Defense Threat Reduction Agency (DTRA)
- The Defense Intelligence Agency (DIA)
The US Department of State
The US Department of Education
The US Department of Agriculture
The US Nuclear Regulatory Commission
The US National Science Foundation
Other Organizations
- Carnegie Endowment for International Peace (CEIP)
- International Atomic Energy Agency (IAEA)
Industry
Zel Technologies and Luminant, Inc.