| Business | Phone |
| B & A Environmental Bio Equip Po Box 86837, San Diego 92138 | (619) 275-2113 |
| Acm Advanced Cleanroom Corp San Diego 92126 | (858) 530-0110 |
| Control Contamination Svc 4204 Sorrento Valley Blvd, San Diego 92121 | (858) 457-7598 |
| Hyperox Technologies 2180 Garnet Ave, San Diego 92109 | (858) 490-0193 |