| Business | Phone |
| Greenland International Inc 23 Krista Crt, Collingwood L9Y 4N9 | (705) 444-8805 |
| Maple Engineering 146 Longpoint Rd, Collingwood L9Y 3Z2 | (705) 446-0775 |
| Barill Engineering Ltd 50 Trail's End, Collingwood L9Y 5B2 | (705) 445-4905 |
| Dti 241 Minnesota St, Collingwood L9Y 3S4 | (705) 444-7965 |