| Business | Phone |
| Honeywell Hi-Spec Solutions 325 Rolling Oaks Dr # 200, Thousand Oaks 91361 | (805) 496-6661 |
| Ch2m Hill 325 E Hillcrest Dr # 125, Thousand Oaks 91360 | (805) 371-7822 |
| Custom Detector Co 365 E Avenida De Los Arboles, Thousand Oaks 91360 | (805) 241-8444 |
| Romax Engineering Svc Thousand Oaks 91360 | (805) 495-2050 |
| Solid Waste Solutions 1736 N Moorpark Rd, Thousand Oaks 91360 | (805) 495-7521 |
| Testmarcx Associates Inc Thousand Oaks 91362 | (805) 449-4348 |