| Business | Phone |
| Automatic Data Processing 9500 Cleveland Ave # 120, Rancho Cucamonga 91730 | (909) 477-4900 |
| Direct Advantage Svc 9339 Placer St, Rancho Cucamonga 91730 | (909) 980-7467 |
| Automatic Data Processing 9445 Fairway View Pl, Rancho Cucamonga 91730 | (909) 477-4200 |