| Business | Phone |
| Cinematronics 344 Dupont St, Toronto M5R 1V9 | (416) 927-7679 |
| Ralston Technical Svc Ltd 129 Margueretta St, Toronto M6H 3S4 | (416) 538-8097 |
| Semiconductor Inc 144 Front St W, Toronto M5J 2L7 | (416) 217-0250 |
| Xilinx Inc 30 St Clair Ave W #1202, Toronto M4V 3A1 | (416) 966-8520 |