| ATU |
| Local 107 |
| |
|
UNIFOR |
| Local 414 |
| Local 504 |
| Local 5555 |
| Local 558 |
| |
| |
| Local 42 |
| Local 87-M |
| |
| Local 8833 |
| |
| COPE |
| Local 290 |
| Local 343 |
| Local 527 |
| |
| CUPE |
| Local 778 |
| Local 786 |
| Local 1000 |
| Local 1065 |
| Local 1281 |
| Local 1404 |
| Local 3396 |
| Local 3491 |
| Local 3906 |
| Local 3943 |
| Local 4153 |
| Local 7800 |
| Local 5167 |
| |
| CUPW |
| Hamilton, 548 |
| |
| |
| |
| |
| HAMILTON-BRANTFORD BUILDING TRADES |
| |
| Carpenters Local 18 |
| |
| Plumbers Local 67 |
| |
| I.B.E.W. Local 105 |
| |
| IUOE Local 772 |
| |
| |
| |
| Teamsters Local 879 |
| |
| HPFF |
| IAFF Local 288 |
| |
| IATSE |
| Local 129 |
| |
| |
| OPSEU |
| Local 201 |
| Local 202 |
| Local 205 |
| Local 206 |
| Local 210 |
| Local 216 |
| Local 222 |
| Local 240 |
| Local 241 |
| Local 248 |
| Local 262 |
| Local 269 |
| Local 274 |
| |
| |
| |
| |
| |
| SEIU |
| SEIU Healthcare (Local 1) |
| Local 2 |
| |
| SOCIETY OF ENERGY PROFESSIONALS |
| Local 160 |
| |
| TEACHERS' UNIONS |
| |
| Hamilton Wentworth Occasional Teachers |
| |
| Hamilton-Wentworth Elementary Teachers |
| |
| O.S.S.T.F. District 21 |
| |
| Ontario English Catholic Teachers Association |
| |
| UFCW |
|
Local 175/633
Local 232
|
| |
| Workers United |
| Local 210C |
| |
| USW |
| Local 1005 |
| Local 1031 |
| Local 2308 |
| |
| |
| Local 4153 |
|
Local 4752
|
| Local 5328 |
| Local 6920 |
| Local 7135 |
| Local 7204 |
| |
| |
| Local 8214 |
| |
| Local 8925 |
| Local 14162 |
| |
| Local 16506 |
