Carbon
- South Coast Air Quality Management District
- Ducommun Aerostructures (Orange, CA)
- Barcel Wire and Cable
- Barrick Gold
- Chevron
- Dow Chemical
- Electric Power Research Institute
- Mactec
- Bandag
- Hi-Shear
- Mentor Corp
- Newmont Mining
- Nucon International
- US Filter/Westates
- Goodrich Aerostructures Group
- Optical Radiation
