| Business | Phone |
| L K Adminstrative Svc Inc 26 Macklingate Crt, Scarborough M1V 1A1 | (416) 266-0773 |
| Varicom Comms & Data 100 Ironside Cres #8, Scarborough M1X 1M9 | (416) 335-8200 |
| Bse Inc 5250 Finch Ave E, Scarborough M1S 5A4 | (416) 438-6230 |
| Digital Mobile Systems Inc 3761 Victoria Park Ave #2, Scarborough M1W 3S2 | (416) 499-8744 |