| Business | Phone |
| Iron Age Design 1024 Dupont St, Toronto M6H 1Z6 | (416) 535-0095 |
| Iron Craft Designs 61 Ossington Ave, Toronto M6J 2Y9 | (416) 516-7312 |
| Irpina Railings 2445 Dundas St W, Toronto M6P 1X3 | (905) 832-0378 |
| J Udrovskis-Coppersmith & Co 271 Christie St #A, Toronto M6G 3B9 | (416) 532-1173 |
| Maxwell Design 201 Christie St, Toronto M6G 3B5 | (416) 537-5048 |
| Peter Danes Studio Danmark 59 Spadina Rd #601, Toronto M5R 2T2 | (416) 967-4814 |
| Unit 5 30 Britain St, Toronto M5A 1R6 | (416) 214-0933 |
| Day & Waters Design Assoc 388 Carlaw Ave #109, Toronto M4M 2T4 | (416) 778-8133 |