| Business | Phone |
| Bear Communications 1860 Chicago Ave # I9, Riverside 92507 | (951) 686-7062 |
| Communication Innovations 393 W La Cadena Dr # 1, Riverside 92501 | (951) 784-5468 |
| Radio Communication Svc 7285 Ridgeline Dr, Riverside 92509 | (951) 681-6835 |
| Rivcomm 1330 Dodson Way, Riverside 92507 | (951) 328-0211 |