| Business | Phone |
| Ainley Group 550 Welham Rd, Barrie L4N 8Z7 | (705) 726-3371 |
| Geospec Engineering Ltd 287 Tiffin St #10, Barrie L4N 7R8 | (705) 722-4638 |
| Highway Construction Inspctn 287 Tiffin St #1, Barrie L4N 7R8 | (705) 734-2973 |
| J Foster Engineering Ltd 231 Bayview Dr, Barrie L4N 4Y5 | (705) 726-7973 |
| Liberty Engineering 157 Rose St, Barrie L4M 6C3 | (705) 737-9718 |
| Meades Engineering Ltd 219 Saunders Rd #500, Barrie L4N 9A3 | (705) 733-3200 |
| Nel Engineering Ltd 49 High St #203, Barrie L4N 5J4 | (705) 728-9098 |
| Peto Mac Callum Ltd 19 Churchill Dr, Barrie L4N 8Z5 | (705) 734-3900 |
| R G Robinson & Assoc Ltd 10 High St, Barrie L4N 1W1 | (705) 721-9222 |
| Richardson Engineering Ltd 4 Cedar Pointe Dr, Barrie L4N 5R7 | (705) 728-0009 |
| Barrie Inspection & Engineer 106 Little Lake Dr, Barrie L4M 7C1 | (705) 726-5231 |
| Skelton Brumwell & Assoc Inc 93 Bell Farm Rd #107, Barrie L4M 5G1 | (705) 726-1141 |
| Soil-Eng Ltd 256 Steel St, Barrie L4M 2G9 | (705) 721-7863 |
| Trow Consulting Engineers Ltd 561 Bryne Dr, Barrie L4N 9Y3 | (705) 734-6222 |
| Ch2m Hill Canada Ltd 135 Bayfield St #201, Barrie L4M 3B3 | (705) 722-8800 |
| Design House 154 Anne St N, Barrie L4N 2B8 | (705) 735-0797 |