| Business | Phone |
| Allegro Software Development 1740 Mass Ave, Boxborough 1719 | (978) 264-6600 |
| Allegro Software Development 43 Waite Rd, Boxborough 1719 | (978) 264-6680 |
| Fonix Corp 629 Massachusetts Ave, Boxborough 1719 | (978) 266-0100 |
| Chalk Creek Software 1740 Massachusetts Ave, Boxborough 1719 | (978) 266-1961 |
| E Acute Inc 461 Flag Hill Rd, Boxborough 1719 | (978) 263-3411 |
| Kag Software 1740 Massachusetts Ave, Boxborough 1719 | (978) 929-9811 |