| Business | Phone |
| Pacific Parts & Control Inc 6255 Prescott Ct, Chino 91710 | (909) 465-1174 |
| Rayland Corp 14726 Ramona Ave, Chino 91710 | (909) 606-9111 |
| Singatron 13925 Magnolia Ave, Chino 91710 | (909) 464-1883 |
| Voltec 14585 Yorba Ave, Chino 91710 | (909) 606-1991 |
| Magtrol West Inc 12320 Eastend Ave, Chino 91710 | (909) 465-5449 |