| Business | Phone |
| A-Info Electronic Tech Group 3553 31 St Nw #106, Calgary T2L 2K7 | (403) 210-0018 |
| Kilowatt Design Co Inc 3016 10 Ave Ne #100, Calgary T2A 6A3 | (403) 272-9404 |
| Llewellyn Design & Consulting 3716 56 Ave Se #10, Calgary T2C 2B5 | (403) 247-8988 |
| Lockley Engineering 7 Edcath Rd Nw, Calgary T3A 4A2 | (403) 239-2164 |
| M R Control Systems Intl Inc 4620 Manilla Rd Se #7, Calgary T2G 4B7 | (403) 243-9629 |
| Mva Consulting Ltd 8120 Beddington Blvd Nw #386, Calgary T3K 2A8 | (403) 275-3302 |
| Oil Lands Utility Svc Ltd 24 Citadel Pass Cres Nw, Calgary T3G 3V1 | (403) 208-1655 |
| Primary Engineering 2216 27 Ave Ne #206, Calgary T2E 7A7 | (403) 873-0400 |
| Ramco Electrical Consulting 840 7 Ave Sw #1420, Calgary T2P 3G2 | (403) 269-8008 |
| Stebnicki Robertson & Assoc 1240 Kensington Rd Nw #403, Calgary T2N 3P7 | (403) 270-8833 |
| Tesla Solutions Group Inc 3711 2 Ave Sw, Calgary T3C 0A2 | (403) 232-8990 |
| Thomas Sutton Engineering Ltd 6131 6 St Se #200, Calgary T2H 1L9 | (403) 253-6586 |
| Voltech Engineering Ltd 623 Willow Brook Dr Se, Calgary T2J 1N6 | (403) 278-1033 |
| Colleaux Engineering Ltd 35 Skyline Cres Ne, Calgary T2K 5X2 | (403) 241-0885 |
| Dubetz Engineering Ltd 642 Arbour Lake Dr Nw, Calgary T3G 4T7 | (403) 265-0747 |
| Emf Technical Svc 70 Scenic Park Cres Nw, Calgary T3L 1R6 | (403) 208-2000 |