| Business | Phone |
| Advanced Servo Tech Inc 1551 S Vineyard Ave, Ontario 91761 | (909) 923-2020 |
| Canje Electric Motor Shop 1125 W Holt Blvd, Ontario 91762 | (909) 391-2108 |
| Combee Electric 1619 E Holt Blvd, Ontario 91761 | (909) 983-2238 |
| Sosa Electric 2128 S Grove Ave # D, Ontario 91761 | (909) 947-5128 |
| Warfield Electric Co 1745 S Bon View Ave, Ontario 91761 | (909) 947-7606 |