- VeriSign Global Registry, Virginia
- DISA, University of Southern California, California
- PSI, Virginia
- Univeristy of Maryland, Maryland
- NASA Ames Research Center, California
- Internet Software Consortium, California
- Department of Defense, Virginia
- Army Research Lab, Maryland
- Autonomica, Stockholm, Sweden
- VeriSign Global Resistry, Virginia
- RIPE, London
- WIDE, Project, Tokyo