| Business | Phone |
| Kva Communications 106 Glenvale Blvd, East York M4G 2V9 | (416) 422-1544 |
| Newman Engineering Inc 61 Research Rd, East York M4G 2G8 | (416) 425-5028 |
| Peter Sheffield & Assoc Ltd 124 Laird Dr, East York M4G 3V3 | (416) 486-0210 |
| Brown Associates Ltd 109 Vanderhoof Ave #2, East York M4G 2H7 | (416) 424-3355 |
| Buchan Lawton Parent Ltd 18 Curity Ave, East York M4B 1X7 | (416) 285-7445 |
| Comprehensive Engineer's Rprts 39 Palmer Ave, East York M4C 4Z7 | (416) 693-1704 |