| Business | Phone |
| 2 M Architects Inc 324 St. Paul St, St Catharines L2R 3M9 | (905) 687-9777 |
| Allen, Michael D 443 Eastchester Ave E, St Catharines L2M 6S2 | (905) 984-5545 |
| Archway & Assoc Architects 108 1/2 Church St, St Catharines L2R 3C8 | (905) 685-9010 |
| Joseph Ga Colonna Arch Inc 8 Paxton Ave, St Catharines L2N 5H8 | (905) 937-8779 |
| Larisa Brodsky Architect Inc 214 King St #1, St Catharines L2R 3J9 | (905) 687-6681 |
| Mac Donald & Zuberec Architcts 39 Queen St #403, St Catharines L2R 5G6 | (905) 685-8467 |
| Robert Kimpinski Architect Ltd 25 Queen Mary Dr, St Catharines L2R 2J3 | (905) 682-3388 |
| Baker & Elmes Architects 23 Hannover Dr #6, St Catharines L2W 1A3 | (905) 682-2623 |
| Venerino Vp Panici Inc 146 James St, St Catharines L2R 5C5 | (905) 688-6087 |