| Business | Phone |
| Purinton Richard Inc Mfrs Rep 54 Andover St, Andover 1810 | (978) 470-8519 |
| National Semiconductor Corp 5 Phoenix Pl, Andover 1810 | (978) 470-0885 |
| H & L Industries Inc 28 Martingale Ln, Andover 1810 | (508) 255-3110 |
| Mast Industries Inc 101 River Rd, Andover 1810 | (978) 557-0134 |