| Business | Phone |
| All Pro Electric 12696 Farrington St, Etiwanda 91739 | (909) 899-0054 |
| Apec 7349 Reserve Pl, Etiwanda 91739 | (909) 463-2126 |
| Berg Electric Corp Etiwanda 91739 | (909) 646-9060 |
| Certified Wiring Systems 6661 Santolina Pl, Etiwanda 91739 | (909) 899-8270 |
| Critical Power Electric 13999 San Segundo Dr, Etiwanda 91739 | (909) 899-2742 |
| Electrical Connections 12368 Dove Tree Dr, Etiwanda 91739 | (909) 899-2272 |
| Mariscal Electric 7318 Fennel Rd, Etiwanda 91739 | (909) 240-7381 |
| Gec Electric 7951 Etiwanda Ave # 14102, Etiwanda 91739 | (909) 731-2369 |
| R C Technology Electric 12966 Chestnut Ave, Etiwanda 91739 | (909) 996-0351 |
| Shasta Electric 13228 Whittram Ave, Etiwanda 91739 | (909) 646-7481 |