- Experimental & Mathematical Physics Consultants (EMPC)
- Hopewell Designs, Inc.
- Lablogic Inc.
- National Institute of Standards and Technology
- Ortec/Ametek
- Steris Corporation
- University of Wisconsin-Madison ADCL
- Bruker BioSpin Corporation
- Eckert & Ziegler Isotope Products
- Experimental & Mathematical Physics Consultants (EMPC)
- Hopewell Designs, Inc.
- IBA Industrial, Inc.
- Lablogic Inc.
- Landauer, Inc.
- Ortec/Ametek
- RadTech
- ScanTech
- Sterigenics
- Steris Corporation
- Theragenics Corporation
- Pacific Northwest National Laboratory
- National Institute of Standards and Technology
- National Physical Laboratory (United Kingdom)
- United States Nuclear Regulatory Commission
- United States Department of Homeland Security S&T NUSTL
- American Association of Physicists in Medicine (AAPM)
- American College of Radiology
- ASTM International
- The State University of New York College, Environmental Science and Forestry
- University of Notre Dame RRL
- Kent State University
- The University of Texas at Dallas
- The University of Texas MD Anderson Cancer Center ADCL
- University of Wisconsin-Madison ADCL