| Business | Phone |
| Altra Custom Sheet Metal Ltd 140 Cidermill Ave, Concord L4K 4T5 | (416) 743-6533 |
| Jenfab Metal Fabrication Ltd 31 Casmir Crt, Concord L4K 4H5 | (905) 669-2180 |
| Marfab Metal Products Inc 467 Edgeley Blvd, Concord L4K 4E9 | (905) 660-3460 |
| Martens Environmental Systems 445 Edgeley Blvd, Concord L4K 4G1 | (905) 761-7206 |
| Matic Air Supply & Mfg Ltd 99 Mccleary Crt, Concord L4K 3Z1 | (905) 738-5888 |
| Paf Metal Products Ltd 150 Connie Cres #7, Concord L4K 1L9 | (905) 660-7101 |
| Protype 2000 Ltd 107 Connie Cres, Concord L4K 1L3 | (905) 660-2422 |
| Rite Air Mechanical Co Ltd 633 Edgeley Blvd, Concord L4K 4H6 | (905) 669-9733 |
| Rwb Air Systems Ltd 60 Saramia Cres #10, Concord L4K 4J7 | (416) 665-6856 |
| Wolf Manufacturing Inc 101 Planchet Rd, Concord L4K 2C6 | (905) 738-7973 |
| Sure-Way Metal Products Ltd 151 Villarboit Cres, Concord L4K 4K2 | (905) 660-3147 |
| Sutton Sheet Metal 668 Millway Ave, Concord L4K 3V2 | (905) 760-2905 |
| Viktorian Sheet Metal Mfg Inc 401 Bradwick Dr, Concord L4K 2P4 | (905) 660-7044 |
| Weldflow Metal Products Ltd 57 Sante Dr #1, Concord L4K 3C4 | (905) 738-8000 |