| Business | Phone |
| Aerodevco Consultants Ltd 225 Metcalfe St #710, Ottawa K2P 1P9 | (613) 234-3315 |
| Air Navigation Data 43 King George St, Ottawa K1K 1V6 | (613) 747-8530 |
| P J Timmins & Assoc 1692 Cannon Cres, Ottawa K2C 0Z2 | (613) 723-1930 |
| Spar Aerospace Ltd 60 Queen St #1204, Ottawa K1P 5Y7 | (613) 569-3330 |