| Business | Phone |
| Ibew Electrical Workers 2413 Lasalle Blvd #1, Sudbury P3A 2A9 | (705) 566-1687 |
| International Brotherhood 2413 Lasalle Blvd, Sudbury P3A 2A9 | (705) 560-0128 |
| International Union-Painters 767 Barrydowne Rd, Sudbury P3A 3T6 | (705) 524-8525 |
| Intrntl Union-Operating Engrs 30 Durham St #307, Sudbury P3C 5E4 | (705) 675-8643 |
| Iron Workers Local 786 260 Alder St, Sudbury P3C 5P4 | (705) 674-6903 |
| Labourer's International Union 392 Montague Ave, Sudbury P3C 4G5 | (705) 674-2515 |
| Labour Community Svc 109 Elm St, Sudbury P3C 1T4 | (705) 674-3455 |
| Millwright Machines Erectors 767 Barrydowne Rd #300, Sudbury P3A 3T6 | (705) 524-7434 |
| Mine Mill 19 Regent St, Sudbury P3C 4B7 | (705) 673-3661 |
| Northern Ontario Newspaper 20 Ste. Anne Rd #202, Sudbury P3C 5N4 | (705) 673-0535 |
| Ontario English Catholic Tchrs 767 Barrydowne Rd, Sudbury P3A 3T6 | (705) 560-7913 |
| Ontario Nurses' Assn 760 Notre Dame Ave #1, Sudbury P3A 2T4 | (705) 560-2610 |
| Ontario Public Svc Employees 866 Newgate Ave, Sudbury P3A 5J9 | (705) 560-1502 |
| Canadian Union Of Public Emp 788 Lasalle Blvd #C, Sudbury P3A 4V4 | (705) 524-6251 |
| Retail Wholesale & Dept Store 230 Regent St, Sudbury P3C 4C5 | (705) 674-0768 |
| Sheet Metal Workers Intl Assn 30 Durham St #309, Sudbury P3C 5E4 | (705) 674-8604 |
| Sudbury & District Labour 103 Elm St, Sudbury P3C 1T3 | (705) 674-1223 |
| Syndicat Canadien De La 888 Regent St #205, Sudbury P3E 6C6 | (705) 674-7557 |
| Union Of Taxation Employees 1191 Lansing Ave, Sudbury P3A 4C4 | (705) 525-7239 |
| United Assoc Plumbers & Pftrs 1640 Bancroft Dr, Sudbury P3B 1R8 | (705) 560-3800 |
| United Brotherhood-Carpenters 495 Spruce St, Sudbury P3C 1P3 | (705) 673-3866 |
| United Steelworkers Of America 92 Frood Rd, Sudbury P3C 4Z4 | (705) 675-2461 |
| Brick & Allied Craft Union Of 469 Bouchard St, Sudbury P3E 2K8 | (705) 522-4140 |
| Brotherhood Of Locomotive Engr 2107 Lasalle Blvd, Sudbury P3A 2A3 | (705) 524-1879 |
| Canadian Union Of Public Emply 790 Lasalle Blvd, Sudbury P3A 4V4 | (705) 560-4705 |
| Canadian Labour Congress 109 Elm St, Sudbury P3C 1T4 | (705) 677-0795 |
| Canadian Union Of Public Empls 19 Regent St, Sudbury P3C 4B7 | (705) 673-1797 |
| Canadian Union-Postal Workers 430 Notre Dame Ave, Sudbury P3C 5K7 | (705) 560-1950 |
| Canadian Union-Public Emplys 22 Brady St, Sudbury P3E 6E1 | (705) 524-8430 |
| Cupe Sudbury & District 790 Lasalle Blvd, Sudbury P3A 4V4 | (705) 524-7748 |