| Business | Phone |
| Jacques Whitford 7070 Farrell Rd Se #E, Calgary T2H 0T2 | (403) 253-7876 |
| Roosdahl Engineering Ent 35 Valley Crest Close Nw, Calgary T3B 5W9 | (403) 503-9005 |
| Building Envelope Engineering 454 Mt Sparrowhawk Pl Se, Calgary T2Z 2G9 | (403) 540-6562 |
| Canspec Group Inc 1313 44 Ave Ne #6, Calgary T2E 6L5 | (403) 291-3126 |