| Business | Phone |
| America Optics Corp 4260 E Brickell St, Ontario 91761 | (909) 605-5688 |
| Comm Plus Computers 2545 S Euclid Ave, Ontario 91762 | (909) 983-3382 |
| Computeam 4315 E Lowell St # A, Ontario 91761 | (909) 974-4424 |
| Computer Surgeon 1000 W 4th St # 402, Ontario 91762 | (909) 986-7595 |
| Computers 4 Less 610 N Euclid Ave, Ontario 91762 | (909) 395-5353 |
| Faustino Rodriguez 218 N Palm Ave, Ontario 91762 | (909) 983-8460 |
| Express Computers Svc 4055 E Guasti Rd # 105, Ontario 91761 | (909) 937-3236 |
| R & D Computer Svc 11047 Bel Air Ave, Ontario 91762 | (909) 590-0014 |
| Radio Shop 4055 E Guasti Rd, Ontario 91761 | (909) 390-5056 |
| Rgi 1505 S Dupont Ave # E, Ontario 91761 | (909) 390-2828 |
| Wiztec Inc 4345 E Lowell St # B, Ontario 91761 | (909) 390-8778 |