| Business | Phone |
| Accuracy Welding Mobile Svc 21 Keistan Dr, St Catharines L2M 1Y2 | (905) 788-4824 |
| Advance Maintenance 522 Eastchester Ave E, St Catharines L2M 7P3 | (905) 684-3517 |
| Alloy Options Ltd 113 Cushman Rd, St Catharines L2M 6S9 | (905) 688-9128 |
| Hudson Welding & Fabricating 326 St. Paul St W, St Catharines L2R 6P7 | (905) 685-8481 |
| Iron Pro 17 Secord Dr, St Catharines L2N 1K9 | (905) 934-4108 |
| Jack's Welding & Machine 63 Lakeport Rd, St Catharines L2N 4P6 | (905) 934-4373 |
| Provincial Fabricating & Rpr 7 Petrie St, St Catharines L2P 3J6 | (905) 988-9868 |
| Reffan Sub-Merge Arc Spec 146 Cushman Rd #13, St Catharines L2M 6T6 | (905) 227-4500 |
| Robert Fournier Welding 414 Glendale Ave, St Catharines L2P 3Y3 | (905) 227-7701 |
| Specialty Welding & Fab 104 Dunkirk Rd, St Catharines L2P 3H5 | (905) 687-9628 |
| Can Am Fabricating & Welding 113 Cushman Rd, St Catharines L2M 6S9 | (905) 682-7699 |