| M |
| McCormick Rankin Corporation (MRC) |
| Metro |
| Metrolinx |
| Ministry of Transportation Ontario Branch |
| Motor Coach Industries |
| MTB Truck & Bus Collision |
| N |
| Niagara Economic Development Corporation |
| O |
| Ontario Ministry of Transportation - Strategic Policy Branch |
| Ontario Ministry of Transportation |
| Ontario Professional Planners Institute |
| OPTA |
| P |
| Pacific Western Transportation |
| Parker + Associates |
| PCL Constructors Canada Inc. |
| Peel Region |
| R |
| Regional Municipality of York |
| ReNew Canada |
| Residential and Civil Construction Alliance of Ontario |
| S |
| Saint John Parking Commission |
| Saint John Transit Commission |
| Saskatoon Transit Ser4vices |
| Serco |
| T |
| Thales Rail Signaling Solutions |
| The Regional Municipality of York |
| Town of Caledon |
| Town of Markham |
| Town of Oakville |
| Transport Canada |
| TRCA |
| Trow Consulting Engineers Ltd. |
| U |
| Upside Wireless |
| Urban Mapping, Inc. |
| W |
| Waterfront Toronto |
| Y |
| York Region Rapid Transit |
| York Region Transit |