| Business | Phone |
| Universal Precision Products 1775 Nw Cornelius Pass Rd, Hillsboro 97124 | (503) 645-4890 |
| Valence Corp 2110 Ne Cornell Rd # E, Hillsboro 97124 | (503) 693-4695 |
| American Precision Ind Inc 2480 Nw 229th Ave, Hillsboro 97124 | (503) 642-5611 |
| Ammcon Corp 21450 Nw West Union Rd, Hillsboro 97124 | (503) 645-5206 |
| Apex Machining & Design Inc 515 Se 12th Ave, Hillsboro 97123 | (503) 642-7969 |
| Tool Works Design & Manufacturer 1777 Se Brookwood Ave, Hillsboro 97123 | (503) 681-8991 |
| Automatic Machining 416 Sw Cedar St # C, Hillsboro 97123 | (503) 640-4999 |
| Bartlett Enterprises 1900 Ne 25th Ave # 11, Hillsboro 97124 | (503) 640-5545 |
| Strom Manufacturing Inc 5285 Ne Elam Young Pkwy # C700, Hillsboro 97124 | (503) 648-7131 |
| Spectrum Prototype 2038 Nw Aloclek Dr # 201, Hillsboro 97124 | (503) 629-0462 |
| Steel Masters Inc 2095 Nw Aloclek Dr # 1104, Hillsboro 97124 | (503) 533-4270 |
| Bob's Design Engineering Inc 3745 Se River Rd, Hillsboro 97123 | (503) 648-7418 |
| Camstar Nw Llc 5285 Ne Elam Young Pkwy, Hillsboro 97124 | (503) 640-7850 |
| Carr Precision 2095 Nw Aloclek Dr # 1114, Hillsboro 97124 | (503) 533-9496 |
| Cnc Machining 7387 Se Tualatin Valley Hwy, Hillsboro 97123 | (503) 649-7048 |
| R & D Manufacturer 160 Sw Freeman Ave, Hillsboro 97123 | (503) 693-8088 |
| Dexter Design & Development Co 5285 Ne Elam Young Pkwy # A800, Hillsboro 97124 | (503) 648-7000 |
| Ideal Industries Inc 5405 Se Alexander St # C, Hillsboro 97123 | (503) 642-9694 |
| Lfr Machining Inc 1982 Ne 25th Ave # 6, Hillsboro 97124 | (503) 693-9664 |
| Lightning Machine Works 1377 Ne 25th Ave, Hillsboro 97124 | (503) 693-0183 |
| Ken Waddington Machine 2820 Se 39th Loop # H, Hillsboro 97123 | (503) 844-6100 |
| Lees' Measuring & Machining Co 2900 Sw Cornelius Pass Rd #332, Hillsboro 97123 | (503) 649-5790 |