| Business | Phone |
| A Unique Mailing Store 9085 Mission Blvd # A1, Riverside 92509 | (951) 360-9451 |
| Post Box Plus 7900 Limonite Ave # G, Riverside 92509 | (951) 685-0888 |
| Postal Depot 6112 Van Buren Blvd, Riverside 92503 | (951) 359-0767 |
| Arc Postal Plus 10530 Magnolia Ave # A, Riverside 92505 | (951) 785-9130 |
| Mailboxes & Stuff Too 6667 Indiana Ave # F, Riverside 92506 | (951) 787-0924 |
| Roadrunner 7006 Magnolia Ave, Riverside 92506 | (951) 781-4433 |