| Business | Phone |
| A Baldassarra Architect 7800 Jane St #200, Concord L4K 4R6 | (905) 660-0722 |
| A Baldassarra Inc 7800 Jane St #200, Concord L4K 4R6 | (416) 739-7438 |
| Architectural Design Co 56 Pennsylvania Ave #1, Concord L4K 3V9 | (905) 660-9393 |
| Intra Architect Inc 3231 Langstaff Rd, Concord L4K 4L2 | (905) 761-7870 |
| Nestico Architect 3000 Langstaff Rd #7, Concord L4K 4R7 | (905) 669-7000 |
| Battaglia Associates Inc 207 Edgeley Blvd, Concord L4K 4B5 | (905) 660-1789 |
| Rossini Architect 151 Applewood Cres, Concord L4K 4E3 | (905) 738-9438 |
| De Berardis Assoc Inc 207 Edgeley Blvd, Concord L4K 4B5 | (905) 660-8877 |