| Business | Phone |
| Asyst Technologies Inc 650 Suffolk St, Lowell 1854 | (978) 794-7974 |
| Tri Quint Semiconductor Inc 175 Cabot St, Lowell 1854 | (978) 937-2043 |
| Azanda Network Devices 900 Chelmsford St, Lowell 1851 | (978) 453-7000 |
| Microsemi Corp/Lowell Div 75 Technology Dr, Lowell 1851 | (978) 442-5600 |
| Q Logic Corp 150 Industrial Ave E, Lowell 1852 | (978) 454-5533 |
| Custom Silicon Inc 600 Suffolk St, Lowell 1854 | (978) 454-4600 |