| Business | Phone |
| Arc Force Inc 19 Woodburn Ave, St Catharines L2P 2W6 | (905) 688-6622 |
| Arcon Steel Fabrication & Sls 525 Geneva St, St Catharines L2N 2H7 | (905) 935-2881 |
| Gino's General Welding & Fab 148 Cushman Rd, St Catharines L2M 6T6 | (905) 687-3686 |
| Hingston Metal Fabricators Ltd 490 Eastchester Ave E, St Catharines L2M 6S3 | (905) 682-8338 |
| Niagara Ornamental Iron Works 57 Eastchester Ave, St Catharines L2P 2Y6 | (905) 688-9663 |
| Niagara Structural Steel 23 Smith St, St Catharines L2P 3J7 | (905) 684-2022 |
| Tiw Steel Platework 23 Smith St, St Catharines L2P 3J7 | (905) 684-9421 |
| Cleland Metal Products Ltd 464 Welland Ave, St Catharines L2M 5V4 | (905) 684-8301 |
| Colbey Custom Fabricating Co 14 Cushman Rd, St Catharines L2M 6S8 | (905) 685-1301 |
| Dressels Steel Works Ltd 15 Kent St, St Catharines L2S 1G9 | (905) 682-5729 |
| Fournier Welding & Fabricating 41 Bunting Rd, St Catharines L2P 1Z1 | (905) 682-4767 |
| Fulton Steel Ltd 125 Cushman Rd, St Catharines L2M 6T2 | (905) 688-2214 |