| Owner | Manager | From | Until |
| North American Trailing Company - USA | Great Lakes Dredge & Dock Company | 1979/05 | 1985 |
| Tidewater Dredging Corporation - United States | Great Lakes Dredge & Dock Company | 1985 | 1992 |
| Great Lakes International Inc. - USA | Great Lakes Dredge & Dock Company | 1992 | 2001 |
| Great Lakes Dredge & Dock Company - United States | | 2001 | 2006 |
| Great Lakes Dredge & Dock Co. LLC - Marshall Islands | | 2006 | |