| Business | Phone |
| Ventur.Com Inc 266 2nd Ave # 1, Waltham 2451 | (781) 647-3000 |
| Extreme Networks Inc 1050 Winter St # 1000, Waltham 2451 | (781) 530-3770 |
| Source Technology 411 Waverley Oaks Rd # 301, Waltham 2452 | (781) 736-0585 |
| Solid Sense Systems 14 Spring St, Waltham 2451 | (781) 891-4095 |
| Memora Corp 760 Main St, Waltham 2451 | (781) 642-8750 |
| Cambridge Computer Svc Inc 271 Waverley Oaks Rd, Waltham 2452 | (781) 250-3000 |
| Chantry Networks 200 West St, Waltham 2451 | (781) 547-0060 |
| Colubris Networks 200 West St, Waltham 2451 | (781) 684-0001 |
| Innovative Computer Solutions 1347 Main St, Waltham 2451 | (781) 647-9699 |
| Intrusic Network Security 330 Bear Hill Rd, Waltham 2451 | (781) 890-6500 |