| Business | Phone |
| International Union Of Op Eng 123 March St #509, Sault Ste Marie P6A 2Z5 | (705) 949-6860 |
| Iron Worker's Union Local 786 72 Northern Ave E, Sault Ste Marie P6B 4H4 | (705) 253-8258 |
| Labourers International Union 280 Bruce St, Sault Ste Marie P6B 1P6 | (705) 942-1036 |
| United Brotherhood-Carpenters 123 March St #105, Sault Ste Marie P6A 2Z5 | (705) 949-3170 |
| Ontario Public Svc Employees 589 Second Line E, Sault Ste Marie P6B 4K2 | (705) 949-5706 |
| Plumbers & Pipefitters Local 235 Drive In Rd, Sault Ste Marie P6B 5X5 | (705) 759-4799 |
| Sault Ste Marie & District 8 Albert St E, Sault Ste Marie P6A 2H6 | (705) 942-9811 |
| United Steelworkers Of America 68 Dennis St, Sault Ste Marie P6A 2W9 | (705) 759-4945 |
| Uswa Local 2724 320 Bay St, Sault Ste Marie P6A 1X1 | (705) 254-2724 |
| Canadian Union Of Public Empl 123 March St #501, Sault Ste Marie P6A 2Z5 | (705) 949-6221 |
| Caw 298 Queen St E, Sault Ste Marie P6A 1Y7 | (705) 253-2338 |