| Business | Phone |
| Crimson Semiconductor Inc 460 W 34th St # 12, New York 10001 | (212) 947-8585 |
| Applied Semiconductor Inc 29 Broadway # 2205, New York 10006 | (212) 509-0602 |
| Dyson-Kissner-Moran Corp 565 5th Ave # 4, New York 10017 | (212) 661-4600 |
| Columbia University Dept Cmptr 500 W 120th St # 450, New York 10027 | (212) 939-7000 |
| Siemens Corp 153 E 53rd St # 56, New York 10022 | (212) 258-4000 |