| Business | Phone |
| Verispan Llc 460 Totten Pond Rd # 5, Waltham 2451 | (781) 890-1717 |
| Quality Metric Inc 235 Wyman St, Waltham 2451 | (781) 890-8882 |
| Decision Resources Inc 260 Charles St, Waltham 2453 | (781) 296-2500 |
| Integrated Healthcare Info Svc 950 Winter St, Waltham 2451 | (781) 895-9950 |