| Business | Phone |
| Arnett & Burgess Oil Field Ltd 605 5 Ave Sw #800, Calgary T2P 3H5 | (403) 260-6700 |
| Arnett & Burgess Oil Field 715 5 Ave Sw #620, Calgary T2P 2X6 | (403) 265-0900 |
| K & D Oilfield Svc Ltd 3516 26 St Ne #1, Calgary T1Y 4T7 | (403) 508-2111 |
| Marine Pipeline Constr Of Cna 5120 6 St Ne, Calgary T2K 4W5 | (403) 274-3443 |
| Quinney Contracting Ltd 839 5 Ave Sw #200, Calgary T2P 3C8 | (403) 205-4100 |
| Standard Pipeline Construction 608 9 St Sw #2111, Calgary T2P 2B3 | (403) 261-0990 |
| Denim Pipeline Construction 640 8 Ave Sw #1040, Calgary T2P 1G7 | (403) 221-8390 |
| Denim Pipeline Constructors 640 8 Ave Sw #1040, Calgary T2P 1G7 | (403) 221-8382 |
| Dunwald & Fleming Enterprises 4518 6 St Ne, Calgary T2E 3Z7 | (403) 277-1331 |
| Eci Cancross Ltd 820 28 St Ne #1, Calgary T2A 6K1 | (403) 248-3433 |
| Eos Pipeline & Facilities 736 6 Ave Sw #1205, Calgary T2P 3T7 | (403) 232-8200 |
| Fontaine Pipeline 1063 Deer River Cir Se, Calgary T2J 6Z6 | (403) 278-5277 |