| Business | Phone |
| Alta Valve Ltd 5476 54 Ave Se, Calgary T2C 3A5 | (403) 279-9222 |
| Brews Controls Corp 4910 Builders Rd Se, Calgary T2G 4C6 | (403) 243-1100 |
| Century Valve & Machine Ltd 1915 30 Ave Ne, Calgary T2E 6Z5 | (403) 250-9742 |
| Deltavalve Corp 7712 56 St Se, Calgary T2C 4S9 | (403) 543-2244 |