| Business | Phone |
| Court Square Data Group Inc 1441 Main St # 223, Springfield 1103 | (413) 746-0054 |
| Group 3 Systems Inc 47 Elwood Dr, Springfield 1108 | (413) 734-3333 |
| Home Port Computer Systems 42 Elsie St, Springfield 1109 | (413) 783-5993 |
| Integrated Command Systems Inc 260 Cottage St, Springfield 1104 | (413) 739-1113 |
| Jaz Consulting Springfield 1103 | (413) 781-9055 |
| Martina Williamson Assoc 15 Lynebrook Rd, Springfield 1118 | (413) 783-6538 |
| Tobin Systems Inc 1500 Main St, Springfield 1115 | (413) 737-7118 |
| Solutions By Computer 191 Chestnut St # 5, Springfield 1103 | (413) 737-0499 |