| Business | Phone |
| Agar, Philip 263 Piccadilly St, London N6A 1S3 | (519) 432-7368 |
| Ardiel, Donald 470 Ambleside Dr, London N6G 4W9 | (519) 850-0792 |
| Cornerstone Architects Inc 284 Central Ave, London N6B 2C8 | (519) 432-6644 |
| Hagarty, Edward H 415 Oxford St W, London N6H 1T2 | (519) 474-0011 |
| Jensen Carsten Architect Inc 1175 Hyde Park Rd #122, London N6H 5K6 | (519) 641-8192 |
| Malhotra Nicholson Architects 256 Pall Mall St #201, London N6A 5P6 | (519) 673-1190 |
| Marsh, Victor 520 Wellington St #4, London N6A 3R2 | (519) 433-2863 |
| Murphy & Murphy Architects Inc 775 Waterloo St, London N6A 3W5 | (519) 433-5161 |
| Schuller, Norbert J 284 Central Ave, London N6B 2C8 | (519) 672-8880 |
| Skinner & Skinner Architects 394 Oxford St E, London N6A 1V7 | (519) 679-9201 |
| Stephen J Mawdsley Architect 980 Adelaide St S #33, London N6E 1R3 | (519) 649-0220 |
| T-G Architecture.Com 371 Princess Ave, London N6B 2A7 | (519) 439-0165 |
| Tillman Ruth Mocellin 318 Wolfe St, London N6B 2C5 | (519) 672-1440 |
| Vinters Architect 1057 Viscount Rd, London N6K 1H6 | (519) 657-2529 |
| Wasylko Architects Inc 370 Queens Ave, London N6B 1X6 | (519) 663-0888 |
| Wilson, Randy 60 Victoria St, London N6A 2B3 | (519) 439-0611 |
| William Haas Consultants 1087 Gainsborough Rd, London N6H 5L5 | (519) 471-1336 |
| Cooke, Louis E J 771 North Mile Rd, London N6H 2X7 | (519) 641-8960 |
| Elliott, Craig R 520 Wellington St #5, London N6A 3R2 | (519) 433-2522 |