| Business | Phone |
| Airflow Research & Mfr Inc 101 1st Ave, Waltham 2451 | (781) 890-8282 |
| Bio Metics Inc 300 Bear Hill Rd # 6, Waltham 2451 | (781) 684-8331 |
| Exchange Solutions Inc 880 Winter St # 3, Waltham 2451 | (781) 693-0300 |
| Rjn Group Inc 260 Bear Hill Rd # 106, Waltham 2451 | (781) 466-9828 |
| Pyramid Technical Consultants 259 Bishop Forest Dr, Waltham 2452 | (781) 891-3902 |
| E A Botti Inc 44 Beaver Brook Rd, Waltham 2452 | (781) 647-5225 |
| Ede Inc 440 Totten Pond Rd # 2, Waltham 2451 | (781) 890-4555 |
| Litigation Metrics Inc 1601 Trapelo Rd # 182, Waltham 2451 | (508) 785-3334 |
| Ibis Assoc 1601 Trapelo Rd # 164, Waltham 2451 | (781) 290-0400 |