| Business | Phone |
| Wright Engineering 468 Canal St, Lawrence 1840 | (978) 659-0083 |
| Arcade Manufacturing Inc 1 Power St, Lawrence 1843 | (978) 681-7728 |
| F & G Machine 147 Marston St, Lawrence 1841 | (978) 725-9363 |
| H & S Machine Co 35 Marston St, Lawrence 1841 | (978) 686-2321 |
| Mills Machine Works Inc 51 S Canal St, Lawrence 1843 | (978) 683-4826 |
| Lanford Manufacturing Inc 43 Merrimack St, Lawrence 1843 | (978) 557-0240 |