Unit Chairs
| Lori Hoover | Community and Social Services | cssunitchair@cupe4900.com |
| Loreta Clozza | Corporate, Courts, Finance | loreta.clozza@cupe4900.com |
| Owen Van Dyke | Paramedic Services | psunitchair@cupe4900.com |
| Susan Uy | Public Health | susanmuy@yahoo.com |
| Paul Beal | Public Works | paul.beal@york.ca |
Stewards
| Ammar Rizvi | Community and Social Services |
| Francesco Disivo | Community and Social Services |
| Frank Sebial | Community and Social Services |
| Kanwarjit Singh | Community and Social Services |
| Andrew Schaper | Corporate, Courts, Finance | andrew.schaper@cupe4900.com |
| Dan Rodzynek | Paramedic Services | |
| Mauricio Saya | Corporate, Courts, Finance | mauricio.saya@cupe4900.com |
| Rakesh Grover | Corporate, Courts, Finance | |
| Sadaf Malekzadeh | Corporate, Courts, Finance | sadaf.malekzadeh@cupe4900.com |
| Teresa Greco | Corporate, Courts, Finance | teresa.greco@cupe4900.com |
| Abraham Poon | Paramedic Services | abraham.poon@cupe4900.com |
| Amanda Thoburn | Paramedic Services | amanda.thoburn@cupe4900.com |
| Franceso Ponissi | Paramedic Services | francesco.ponissi@cupe4900.com |
| Jennifer Avery | Paramedic Services | jennifer.avery@cupe4900.com |
| Kayla Moreau | Paramedic Services | kayla.moreau@cupe4900.com |
| Lauren Rodzynek | Paramedic Services | lauren.rodzynek@cupe4900.com |
| Matthew Harris | Paramedic Services | matthew.harris@cupe4900.com |
| Mike Davis | Paramedic Services | michael.davis@cupe4900.com |
| Noel Pang | Paramedic Services | noel.pang@cupe4900.com |
| Richard Siewierski | Paramedic Services | |
| Rob Greene | Paramedic Services | rob.greene@cupe4900.com |
| Sandra Kerr | Paramedic Services |
| Thomas Sakamoto | Paramedic Services |
| Rafael Iraheta | Public Health | rafael.iraheta@cupe4900.com |
| Tammy Wolf | Public Health | tammy.wolf@cupe4900.com |
| Chris Biri | Public Works | chris.biri@cupe4900.com |
| David Thompson | Public Works |
| Julien Zambrano | Public Works |
| Kent Raymond | Public Works | kent.raymond@york.ca |
| Stephen Losco | Public Works |