| Business | Phone |
| H Z Industries 540 Coronation Dr #1, Scarborough M1E 5B7 | (416) 281-0606 |
| Speaker Direct Inc-Studiolab 2139 Lawrence Ave E, Scarborough M1R 3A4 | (416) 757-3265 |
| Tortech Electronics Inc 70 Melford Dr #8, Scarborough M1B 1Y9 | (416) 298-0448 |
| Vibration Technology Ltd 705 Progress Ave #61, Scarborough M1H 2X1 | (416) 438-9320 |
| Virgin Acoustics 80 Dynamic Dr #10, Scarborough M1V 5A4 | (416) 754-1414 |