| Business | Phone |
| Action Industries 1120 Olympic Dr, Corona 92881 | (951) 272-4200 |
| Asturies Manufacturing Co 310 Cessena Cir, Corona 92880 | (951) 270-1766 |
| Baghouse & Ind Sheet Metal Svc 1731 Pomona Rd, Corona 92880 | (951) 272-6610 |
| Bolsan West 226 N Sherman Ave # B, Corona 92882 | (951) 278-8197 |
| Cmag Enterprises Inc 130 N Sherman Ave, Corona 92882 | (951) 582-9399 |
| Corona Machine Shop Inc 1264 Magnolia Ave, Corona 92879 | (951) 737-3923 |
| Creative Machining Technology 339 Blaine St, Corona 92879 | (951) 735-3194 |
| David Engineering & Manufacturer Co 1230 Quarry St, Corona 92879 | (951) 735-7710 |
| Job Shop 355 N Sheridan St # 113, Corona 92880 | (951) 734-3580 |
| Monson Machine 1802 Pomona Rd, Corona 92880 | (951) 736-6615 |
| Premier Gear & Machining Inc 2360 Pomona Rincon Rd, Corona 92880 | (951) 278-5505 |
| Price Manufacturing Co 372 N Smith Ave, Corona 92880 | (951) 371-5660 |
| All Custom Form Tools 320 N Delilah St, Corona 92879 | (951) 272-8500 |
| Arms Precision 1869 Pomona Rd # E, Corona 92880 | (951) 273-1800 |
| C & G Engineering 569 Bateman Cir, Corona 92880 | (951) 736-0645 |
| Extreme Machine Corona 92879 | (951) 371-6029 |
| F & L Tools Corp 245 Jason Ct, Corona 92879 | (951) 279-1555 |
| Factory Connection 1701 Rimpau Ave # 104, Corona 92881 | (951) 549-9526 |
| Fineline Machining 271 Ott St # 26, Corona 92882 | (951) 817-9641 |
| Freiling Machining Co 201 Jason Ct, Corona 92879 | (951) 371-0346 |
| Gregory Engineering 2056 Glenhaven Dr, Corona 92882 | (951) 736-0639 |
| Hicks Manufacturing Corp 1149 Pomona Rd, Corona 92882 | (951) 278-1659 |
| Innovation Factory 1441 Pomona Rd # 18, Corona 92882 | (951) 371-1021 |
| J R Machining 2900 Palisades Dr, Corona 92880 | (951) 817-3330 |
| Jackman Machining 182 Business Center Dr, Corona 92880 | (951) 735-1317 |
| L C Busler's Machine & Repair 312 N Cota St # A, Corona 92880 | (951) 549-9160 |
| Lijo Sales & Consulting Inc Corona 92879 | (951) 734-0459 |
| M D Engineering 149 N Maple St # B, Corona 92880 | (951) 736-5390 |
| Mc Kenzie Shop 1499 Pomona Rd, Corona 92882 | (951) 808-0286 |
| Millworx Precision Machining 519 N Smith Ave, Corona 92880 | (951) 371-2683 |
| Mark Philyaw Corona 92879 | (951) 279-0732 |
| Philips Machines 1471 Pomona Rd # D, Corona 92882 | (951) 735-6392 |
| Precession Machine & Tool 1441 Pomona Rd, Corona 92882 | (951) 273-1963 |
| Pro Machining Precision Cnc 1520 Commerce St, Corona 92880 | (951) 898-8497 |
| Sal's Machine 501 N Smith Ave # 105, Corona 92880 | (951) 279-4212 |
| Southland Cnc Inc 1812 Railroad St, Corona 92880 | (951) 371-2197 |
| Specialty Machining & Fab 1490 W Rincon St, Corona 92880 | (714) 978-0394 |
| Tam Shell Manufacturer 237 Glider Cir, Corona 92880 | (951) 272-9395 |
| Specialized Machine & Welding 1810 Compton Ave, Corona 92881 | (951) 735-9191 |
| Vertex Machining 169 N Maple St, Corona 92880 | (951) 817-8853 |
| W K Machine Co Inc 1525 Consumer Cir, Corona 92880 | (951) 340-9550 |
| S R Machining Inc 210 Lewis Ct, Corona 92882 | (951) 520-9486 |
| Weinkauf Equipment Repair 2072 Sage Ave, Corona 92882 | (951) 371-2313 |