| Business | Phone |
| Winco Corp 15 Alpha Rd, Chelmsford 1824 | (978) 256-0982 |
| S & H Engineering 248 Mill Rd, Chelmsford 1824 | (978) 256-7231 |
| Precision Machinists Co 299 Littleton Rd, Chelmsford 1824 | (978) 256-4592 |
| Cunningham Machine Co 35 Hunt Rd, Chelmsford 1824 | (978) 256-7541 |
| D & C Precision Machine Inc 21 Progress Ave, Chelmsford 1824 | (978) 256-1620 |
| High Tech Machinists Inc 177 Riverneck Rd, Chelmsford 1824 | (978) 256-1600 |
| J T Mfg 10 Elizabeth Dr, Chelmsford 1824 | (978) 244-0601 |