| Owner | Manager | From | Until | | Department of Transport Marine Services - Canada | | 1947/03 | 1962 |
| Canadian Coast Guard - Ottawa, Ontario, Canada | | 1962 | 1972 |
| Peter Le Page Ltd. - Canada | | 1972 | 1974 |
| E. Nieminen - Canada | | 1974 | 1975 |
| Kilbear Construction Company Ltd. - Canada | | 1975 | 1976/01 |
| Marine Transport & Engineering Ltd. - Canada | | 1976/01 | 1979 |
| Unknown US Interests - USA | | 1979 | |
|
| Fleet | From | Until | | Canadian Coast Guard - Ottawa, Ontario, Canada | 1962 | 1972 |
|