| Business | Phone |
| Accent Plastics Inc 1925 Elise Cir, Corona 92879 | (951) 273-7777 |
| Advanced Technology 235 Citation Cir, Corona 92880 | (951) 279-4810 |
| Ama Plastics 350 W Rincon St, Corona 92880 | (951) 734-5600 |
| Fischer Mold Inc 393 Meyer Cir, Corona 92879 | (951) 279-1140 |
| Master Devices 1820 Fullerton Ave # 310, Corona 92881 | (951) 689-9090 |
| Merrick Engineering Inc 1275 Quarry St, Corona 92879 | (951) 737-6040 |
| Pacific Polylloys Inc 1530 Consumer Cir, Corona 92880 | (951) 736-8160 |
| Pimco 206 Lewis Ct, Corona 92882 | (951) 272-8028 |
| Precise Plastics Products Inc 224 Glider Cir, Corona 92880 | (951) 898-0500 |
| Integrated Plastics Mach Inc 208 Lewis Ct, Corona 92882 | (951) 272-4485 |
| Meridian Moulding Inc 381 Jenks Dr, Corona 92880 | (951) 279-5220 |
| Scr Molding Inc 2340 Pomona Rincon Rd, Corona 92880 | (951) 736-5490 |
| Preproduction Plastics 210 Teller St, Corona 92879 | (951) 340-9680 |
| Surface Finish Technology 130 N Sherman Ave, Corona 92882 | (951) 734-0731 |