| Business | Phone |
| Scientific Computing Intl 6355 Corte Del Abeto, Carlsbad 92011 | (760) 930-3992 |
| Freedom Scientific Inc Corp 2131 Palomar Airport Rd # 200, Carlsbad 92011 | (760) 602-5232 |
| Mda Scientific Carlsbad 92009 | (760) 942-3142 |
| Jaycor Inc 5861 Edison Pl, Carlsbad 92008 | (760) 804-1821 |
| Jeol 5600 Avenida Encinas, Carlsbad 92008 | (760) 476-1980 |