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| Bar Engineering | Newfoundland Processing |
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| Canadian Superior Oil | Novagas |
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| Centra Gas | Petroleum & Gas Services |
| Colt Engineering | Petrovera Resources |
| Cominco | Presson Manufacturing |
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| ConocoPhillips | Shell Canada |
| Consumers’ Co-operative Refineries | StatoilHydro |
| Cord Projects | Sulpetro |
| CS Resources | Suncor |
| Delta Projects | Syncrude |
| DPH Engineering | Talisman Energy |
| Elan Energy | Tarragon Oil & Gas |
| EnCana | Texaco Canada |
| Fluor Canada | Thermo Design Engineering |
| Gulf Canada | Three Streams Engineering |
| Harmattan Gas Processing | TransAlta Energy |
| Home Oil | Ultramar |
| Husky Oil | Unocal Canada |
| Imperial Oil | Vista Projects |
| IMV Projects | Wascana Energy |
| Jacobs Canada | Westcoast Energy |
| Japan Canada Oil Sands | WorleyParsons |
| Liquid Carbonic |
403-279-8310
TIW WESTERN Inc.
7770 – 44th Street S.E.
Calgary, Alberta, Canada
T2C 2L5