| Business | Phone |
| Syntha Corp 41 W Putnam Ave, Greenwich 6830 | (203) 869-2703 |
| Navtech Systems Inc 165 W Putnam Ave, Greenwich 6830 | (203) 661-7800 |
| Get Physical Software 15 E Putnam Ave # 376, Greenwich 6830 | (203) 622-0108 |
| Invision 200 Railroad Ave, Greenwich 6830 | (203) 861-2200 |
| Invision 325 Greenwich Ave, Greenwich 6830 | (203) 861-1962 |