| Business | Phone |
| Numech Inc 1733 Woodward Dr, Ottawa K2C 0P9 | (613) 727-1551 |
| Mec-Arc Mechanical Ltd 2275 Stevenage Dr #3, Ottawa K1G 3W1 | (613) 736-7755 |
| Sayers & Assoc Ltd 401 Smyth Rd, Ottawa K1H 8L1 | (613) 736-9064 |
| Tesc Contracting Ltd 557 Cambridge St S, Ottawa K1S 4J4 | (613) 231-4307 |
| Tesc Contracting Ltd 1394 Morley Blvd, Ottawa K2C 1R6 | (613) 228-0550 |
| Gafftech Solutions Inc 1733 Woodward Dr, Ottawa K2C 0P9 | (613) 727-2913 |