| Owner | Manager | From | Until | | Bright Equipment Corporation - Sea Bright, New Jersey, USA | | 1978 | 1990 |
| East Coast Tender Services Inc. - Sea Bright, New Jersey, USA | | 1990 | 1996/03 |
| Great Lakes Dredge & Dock Company - United States | | 1996/03 | 2003/03 |
| Lake Michigan Contractors Company - Holland, Michigan, USA | | 2003/03 | 2003/12 |
| Subaqueous Services Inc. - Jacksonville, Florida, USA | | 2003/12 | 2006 |
| Milton Marine Services Inc. - Seattle, Washington, USA | | 2006 | 2007 |
| Harley Marine Services Inc. - Seattle, Washington, USA | | 2007 | 2019 |
| Centreline Logistics Corporation - Seattle, Washington, USA | | 2019 | |
|
| Fleet | From | Until | | Great Lakes Dredge & Dock Co. - Oak Brook, Illinois | 1996/03 | 2003/03 |
|