| Business | Phone |
| A & M Heat Treating 1815 Drew Rd, Mississauga L5S 1J5 | (905) 676-0911 |
| A & M Surf Tech Ltd 2380 Anson Dr, Mississauga L5S 1G2 | (905) 362-0540 |
| Advanced Heat Treating 2459 Anson Dr, Mississauga L5S 1G1 | (905) 673-1611 |
| Allied Heat Treat Ltd 7521 Tranmere Dr, Mississauga L5S 1L4 | (905) 677-8000 |
| Huq Heat Treatment Ltd 1135 Fewster Dr, Mississauga L4W 1A2 | (905) 238-8262 |
| Opus Ferrum 96 Ltd 1005 Westport Cres, Mississauga L5T 1E8 | (905) 670-0071 |
| Bohler Uddeholm Thermo-Tech 2645 Meadowvale Blvd, Mississauga L5N 7Y4 | (905) 812-9370 |
| Commercial Spring & Tool Co 971 Matheson Blvd E, Mississauga L4W 2R7 | (905) 625-6561 |