| Owner | Manager | From | Until | | Marine Salvage / Marine Recycling Corp. - Port Colborne, Ontario | | | 1969 |
|
| Fleet | From | Until | | Bessemer Steamship Company - Cleveland, Ohio | | 1901 |
| Detroit Sulphite Transportation Company - Detroit, Michigan | | 1939 |
| Driftwood Lands & Timber Ltd. - Sault Ste. Marie, Ontario | | 1940 |
| Pittsburgh Steamship Company - Duluth, Minnesota | 1948/08 | 1951/07 |
| Marine Salvage / Marine Recycling Corp. - Port Colborne, Ontario | | 1969 |
| Hindman Transportation Company Ltd. - Owen Sound, Ontario | 1964 | 1978 |
|