| Business | Phone |
| Apollo Circuits Ltd 109 Oakdale Rd, North York M3N 1W2 | (416) 741-1466 |
| B G Technology 190 Wildcat Rd, North York M3J 2N5 | (416) 650-5334 |
| Greey Electrical Products 4065 Chesswood Dr, North York M3J 2R8 | (416) 398-0632 |
| H B Etlin Co Ltd 1850 Wilson Ave, North York M9M 1A1 | (416) 741-7336 |
| Leviton Canada 1370 Don Mills Rd #300, North York M3B 3N7 | (416) 443-9300 |
| Precision Electronic Component 4 Oakland Ave, North York M9M 2H8 | (416) 744-8840 |
| R L Components Ltd 55 Brisbane Rd, North York M3J 2K3 | (416) 665-8511 |
| W M Niven Assoc Ltd 1131 Leslie St #A, North York M3C 2K6 | (416) 449-1545 |
| Celestica Inc 844 Don Mills Rd, North York M3C 1V7 | (416) 448-5800 |
| Centramag Electronics Ltd 37 Kodiak Cres #11, North York M3J 3E5 | (416) 638-1855 |