| Business | Phone |
| Allied Supplies & Svc Ltd 5501 1a St Sw, Calgary T2H 0E6 | (403) 253-1409 |
| Input Output Canada Inc 6304 Burbank Rd Se #9, Calgary T2H 2C2 | (403) 252-9982 |
| Lamont Bit Svc Ltd 1304 44 Ave Ne #6, Calgary T2E 6L6 | (403) 291-3711 |
| Mitcham Canada Ltd 2080 21 St Ne, Calgary T2E 6S5 | (403) 250-8010 |
| Barisystems 5304 Hubalta Rd Se, Calgary T2B 1T6 | (403) 272-0318 |
| Tor Geoscience Corp 2280 39 Ave Ne #6, Calgary T2E 6P7 | (403) 291-4445 |
| Canadian Geophysical Products 939 28 St Ne, Calgary T2A 7X1 | (403) 275-1775 |