| Business | Phone |
| All-In-One Electronics Inc 50 Wingold Ave, North York M6B 1P7 | (416) 789-0668 |
| Lineman's Testing 41 Rivalda Rd, North York M9M 2M4 | (416) 742-6911 |
| Rayjac Electronics 701 Petrolia Rd, North York M3J 2N6 | (416) 661-5237 |
| Selectronics Limited 1088 Barmac Dr, North York M9L 2X3 | (416) 742-9110 |
| Videophase Limited 582 Gordon Baker Rd, North York M2H 3B4 | (416) 498-1348 |