| Business | Phone |
| American Training Inc 150 Industrial Ave E, Lowell 1852 | (978) 275-9989 |
| Appleton Industries Inc 37 Delmont Ave, Lowell 1852 | (978) 459-3061 |
| Aved Electronics 59 Technology Dr, Lowell 1851 | (978) 453-6393 |
| First Choice Assembly 287 Appleton St, Lowell 1852 | (978) 654-5232 |
| Eltech Electronics 790 Chelmsford St, Lowell 1851 | (978) 459-4434 |
| M & K Industries 50 Stedman St # 8a, Lowell 1851 | (978) 458-8188 |