| Business | Phone |
| Townsend Welding Co 815 Woburn St, Wilmington 1887 | (978) 657-5189 |
| Frazier Sheet Metal Inc 845 Woburn St # R, Wilmington 1887 | (978) 658-1923 |
| Mechanical Construction 789 Woburn St, Wilmington 1887 | (978) 657-0441 |
| E & O Mechanical 200 Andover St # O, Wilmington 1887 | (978) 988-1991 |