| Business | Phone |
| Virtutech 929 Massachusetts Ave, Cambridge 2139 | (617) 876-1574 |
| Coventor Inc 625 Mount Auburn St, Cambridge 2138 | (617) 497-6880 |
| Harvard Design & Mapping 125 Cambridgepark Dr # 3, Cambridge 2140 | (617) 354-0100 |
| Integrated Cadd Svc 19 Bishop Richard Allen Dr, Cambridge 2139 | (617) 576-8778 |