| Business | Phone |
| Ancro Technical Svc Inc 20 Shannon Dr Sw, Calgary T2Y 2A5 | (403) 256-5307 |
| Western Fuel Economy Ltd 3208 8 Ave Ne #502, Calgary T2A 7V8 | (403) 243-9377 |
| Houston Energy Group 1823 31 Ave Sw, Calgary T2T 1S8 | (403) 228-6669 |
| Mariah Energy Corp 1922 9 Ave Se #12, Calgary T2G 0V2 | (403) 264-2880 |
| Optimal Technologies Inc 444 5 Ave Sw #1750, Calgary T2P 2T8 | (403) 514-6040 |
| Quantrisk.Com 311 6 Ave Sw #1700, Calgary T2P 3H2 | (403) 398-9978 |
| Caminus Corp 407 2 St Sw #1140, Calgary T2P 2Y3 | (403) 537-0350 |
| Canadian Enhanced Energy Dev 400 3 Ave Sw #1400, Calgary T2P 4H2 | (403) 686-0087 |
| Canadian Enhanced Energy Dev 246 Stewart Green Sw #3160, Calgary T3H 3C8 | (403) 686-1485 |
| Electrotek Limited 1016 34 Ave Se, Calgary T2G 1V4 | (403) 287-2200 |
| Enmax 2808 Spiller Rd Se, Calgary T2G 4H3 | (403) 310-2010 |