| Business | Phone |
| J T Atlas Engineering 1315 Finch Ave W #408, North York M3J 2G6 | (416) 633-4026 |
| R G Consulting Inc 2201 Finch Ave W #27, North York M9M 2Y9 | (416) 213-0200 |
| T K Steel Engineers 114 Goulding Ave, North York M2M 1L4 | (416) 250-8655 |
| Bof & Assoc Ltd 1262 Don Mills Rd #62e, North York M3B 2W7 | (416) 446-1561 |
| Digidex 35 Alamosa Dr, North York M2J 2N6 | (416) 221-3398 |
| Dzy Drafting & Design 18 Codsell Ave, North York M3H 3V5 | (416) 633-3700 |
| G K Precast Design Systems 1315 Lawrence Ave E #302, North York M3A 3R3 | (416) 449-2550 |