| Business | Phone |
| Advanced Electron Beams Inc 10 Upton Dr, Wilmington 1887 | (978) 658-8600 |
| Affco 210 Andover St # 19, Wilmington 1887 | (978) 657-8873 |
| Emerald Machine Co 30 Park St, Wilmington 1887 | (978) 658-4020 |
| Etm Mfg Co 21 Concord St, Wilmington 1887 | (978) 658-2485 |
| Morton & Co 11 Eames St, Wilmington 1887 | (978) 657-7726 |
| Lockhart Machine Co 287 Main St, Wilmington 1887 | (978) 658-5249 |
| High Tech Machine & Tool Inc 218 Andover St, Wilmington 1887 | (978) 657-8266 |
| Jjt Engineering Inc 319 Main St, Wilmington 1887 | (978) 657-4137 |