| Business | Phone |
| Commercial Refrigeration Schl 565 Birch Ct, Colton 92324 | (909) 423-0347 |
| Rtp Associated Inc 2281 La Crosse Ave, Colton 92324 | (909) 777-0055 |
| Rtp School 790 Via Lata # 300, Colton 92324 | (909) 783-7696 |
| Turnkey Construction Mgmt Inst 1060 E Washington St # 140, Colton 92324 | (909) 422-0300 |