- InterLab 2005 - Pacific Northwest National Laboratory (PNNL)
- InterLab 2004 - Oak Ridge National Laboratory (ORNL)
- InterLab 2003 - Stanford Linear Accelerator Center (SLAC)
- InterLab 2002 - National Renewable Energy Laboratory (NREL)
- InterLab 2000 - Los Alamos National Laboratory (LANL)
- InterLab 1999 - Stanford Linear Accelerator Center (SLAC)
- InterLab 1998 - Sandia National Laboratories (SNL)
- InterLab 1997 - Oak Ridge National Laboratory (ORNL)
- InterLab 1996 - National Renewable Energy Laboratory (NREL)
- InterLab 1995 - National Renewable Energy Laboratory (NREL)
- InterLab 1994 - National Renewable Energy Laboratory (NREL)