| Business | Phone |
| Hda Enterprises Ltd 4116 64 Ave Se #101, Calgary T2C 2B3 | (403) 279-0644 |
| Histech Energy Solutions Inc 251 Midpark Blvd Se #201, Calgary T2X 1S3 | (403) 201-7517 |
| Hydor Heating Systems 3423 Centre St Nw, Calgary T2E 2X7 | (403) 277-1170 |
| Nu-Trend Industries Inc 940 Tuscany Dr Nw, Calgary T3L 2T5 | (403) 247-4342 |
| Qualitec Distributors Inc 9232 Horton Rd Sw, Calgary T2V 2X4 | (403) 258-0022 |
| Roberts-Gordon Tykron 6438 Ranchview Dr Nw, Calgary T3G 1A1 | (403) 547-7232 |
| Westech Air Corp 5074 80 Ave Se, Calgary T2C 2X3 | (403) 279-2414 |
| Danfoss Inc 11500 35 St Se #8034, Calgary T2Z 3W4 | (403) 236-9560 |
| Foster Wheeler Fired Heaters 7330 Fisher St Se #450, Calgary T2H 2H8 | (403) 255-3447 |
| Quality Combustion & Controls Ltd 834, 3545 - 32 Ave NE, Calgary T1Y 6M6 | (403) 936-0065 |