| Full Name | Company |
|---|---|
| Bob O'Donnell | Greater Toronto ECA |
| John O'Grady | Prism Economics and Analysis |
| Gillian Olohan | Provincial Building & Construction Trades Council of Ontario |
| Emmanuel Osagie | Hammer Heads |
| Manzur Padshahgul | Hammer Heads |
| Eddy Panetta | UA Local 46 |
| Gabriel Parent | Carpenters Local 2486 |
| Steve Pascoal | Brick and Allied Craft Union Of Canada Local 10 |
| Omar Passos | LiUNA Local 506 Training Centre |
| Chris Paswisty | SMART Sheet Metal Air Rail Transportation |
| Patricia Penney-Rouzes | Association of Millwrighting Contractors of Ontario |
| Michael Pentz | FTI |
| Frank Pepers | E.S. Fox Limited |
| Paulo Pereira | Sheet Metal Workers & Roofers Local 30 |
| Janice Perry | Labour Education Centre |
| Spencer Perry | Hammer Heads |
| Riccardo Persi | LiUNA Local 837 |
| Wayne Peterson | CECCO |
| Mark Phillpotts-Delisser | Aecon Group Inc. |
| Joe Piazza | Canada's Building Trades Unions |
| Sylvain Piché | MLITSD |
| Luis Pimentel | LiUNA Local 506 |
| Sandro Pinto | LiUNA Local 183 Training Centre |
| Justine Piticaru | Alltrade Industrial Contractors |
| Riccardo Porto | LiUNA Local 837 |
| Steven Pratt | IronWorkers Local 736 |
| Merissa Preston | LiUNA Local 506 Training Centre |
| Brian Pringle | Brick And Allied Craft Union Of Canada Local 5 |
| Karen Pullen | IBEW Local 353 |
| Sabita Ramlal | Prism Economics and Analysis |
| Tim Rawding | M&G Steel Limited |
| Tristan Rawlins | Brick and Allied Craft Union Of Canada |
| Saverio Repole | LiUNA Local 506 |
| Larry Richard | International Union of Operating Engineers |
| Bob Ritzmann | Energize Ontario |
| Chris Robinson | PCL Constructors |
| Bryan Ross | Heat and Frost Insulators Local 95 |
| David Rowe | Union Benefit Plan Services Limited |
| Marsha Russell | MLITSD |
| Mark Russo | Carpenters Local 27 |
| Heather Sakai | Guardian Glass |
| Marzieh Sarvi | Labour Education Centre |
| Sara Scott | Boilermaker Contractors' Association |
| Cristina Selva | College of Carpenters and Allied Trades |
| Rahim Shamji | Right-Time |
| Sandra Shime | MLITSD |
| Sandra Skivsky | Ontario Masonry Contractors' Association |
| Dominique Skubnik | Prism Economics and Analysis |
| Desiree Smith | Labour Education Centre |
| Rory Smith | Carpenters Local 27 |