| Business | Phone |
| Advanced Media Svc 100 Burtt Rd, Andover 1810 | (978) 475-4101 |
| Vicor Corp 25 Frontage Rd, Andover 1810 | (978) 470-2900 |
| Vtech Engineering Corp 20 New England Bus Ctr Dr, Andover 1810 | (978) 974-9944 |
| American Micro Systems Inc 1 Tech Dr, Andover 1810 | (978) 989-9999 |