| Business | Phone |
| Apparatus Testing & Engineerng 11300 Sanders Dr # 29, Rancho Cordova 95742 | (916) 853-6280 |
| Industrial Tests Inc 3223 Luyung Dr, Rancho Cordova 95742 | (916) 859-5959 |
| Kva Electrical Engineering 3301 Sunrise Blvd # G, Rancho Cordova 95742 | (916) 852-9312 |