| Owner | Manager | From | Until | | Wilson Transit Company - Cleveland, Ohio | | 1925/05 | 1955 |
| National Steel Corporation | | 1955 | 1975 |
| Robert Pierson Holdings Ltd. - Mississauga, Ontario | Westdale Shipping Ltd. - Hamilton, Ontario | 1975 | 1983 |
| P&H Shipping Ltd. - Mississauga, Ontario | | 1983 | 1985 |
| Goderich Elevator & Transit Company | | 1985 | 1994 |
|
| Fleet | From | Until | | Wilson Transit Company - Cleveland, Ohio | 1925/05 | 1955 |
| National Steel Corporation - Cleveland, Ohio | 1955 | 1975 |
| Soo River Company - Mississauga, Ontario | 1975 | 1983 |
| P&H Shipping Company - Mississauga, Ontario | 1983 | 1985 |
|