| Business | Phone |
| A G Engineering 8647 Helms Ave # 1, Rancho Cucamonga 91730 | (909) 944-8504 |
| California Generator Svc 8990 Cottage Ave # D, Rancho Cucamonga 91730 | (909) 989-8732 |
| A G Engineering Inc 8647 Helms Ave # 1, Rancho Cucamonga 91730 | (909) 944-8504 |
| Generator Service Co 10255 Philadelphia Ct, Rancho Cucamonga 91730 | (909) 949-1600 |