| Business | Phone |
| Chemicon International Inc 28820 Single Oak Dr, Temecula 92590 | (951) 676-8080 |
| Guidant Corp 26531 Ynez Rd, Temecula 92591 | (951) 914-2400 |
| Hudson Respiratory Care Inc 27711 Diaz Rd, Temecula 92590 | (951) 676-5611 |
| Granbio Inc 38660 De Portola Rd, Temecula 92592 | (951) 302-0244 |
| Transducer Techniques 42480 Rio Nedo, Temecula 92590 | (951) 676-3965 |