| Business | Phone |
| Advance Engineering & Molding 6510 Box Springs Blvd, Riverside 92507 | (951) 653-8461 |
| Edge Plastics Inc 1850 Massachusetts Ave # C, Riverside 92507 | (951) 786-4750 |
| Erwin Plastics 4776 Felspar St, Riverside 92509 | (951) 360-2490 |
| Hi-Rel Corp 7575 Jurupa Ave, Riverside 92504 | (951) 354-0258 |
| Micromold Inc 2100 Iowa Ave, Riverside 92507 | (951) 684-7130 |
| Black Pot Shop 561 Iowa Ave, Riverside 92507 | (951) 342-0200 |
| Jim's Mold 5844 Republic St, Riverside 92504 | (951) 343-1395 |
| Yushin America Inc 3751 Merced Dr # H, Riverside 92503 | (951) 343-0210 |
| Riverside Molded Products 4213 Hangar Rd, Riverside 92509 | (951) 784-1140 |
| V M Distributors 2950 Jefferson St, Riverside 92504 | (951) 637-7600 |
| Trademark Plastics Inc 807 Palmyrita Ave, Riverside 92507 | (951) 328-1888 |