| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| BOYD LINE PACIFIC LIMITED | 01556679 | 27/04/1981 | Dissolved |
| Boyd Line Management Services International Ltd | 02461934 | 22/01/1991 | Dissolved |
| Castround Limited | 01899375 | 21/12/1991 | Dissolved |
| David Dow (Transport) Ltd | SC043339 | 24/08/1989 | Dissolved |
| Fish Container Services Ltd | 02029085 | 26/01/1993 | Dissolved |
| Hull Fish Landing Co Ltd | 01497494 | 26/01/1992 | Dissolved |
| Mertonpark Limited | 02609009 | 07/10/1991 | Dissolved |
| SPENCER BOYD ASSOCIATES LIMITED | 04857402 | 06/08/2003 | One Red Flag |
| Shernplace Ltd | 02200009 | 06/09/1992 | Dissolved |
| Shipguide Ltd | 01473720 | 05/10/1991 | Dissolved |
| Witte Boyd Holdings Ltd | 02047961 | 27/02/1991 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BOYD LINE LIMITED | 01501627 | 21/12/1991 | 30/06/2004 | Amber |
| Boyd Line Management Services Ltd | 00319140 | 05/10/1991 | 30/06/2004 | Dissolved |
| EAST YORKSHIRE RIVERS TRUST | 05697790 | 09/01/2007 | 22/06/2021 | Silver |
| FASFA LIMITED | 04056795 | 14/11/2000 | 20/01/2011 | Gold |
| FISH PRODUCERS'ORGANISATION LIMITED(THE) | 01105697 | 18/10/1992 | 30/06/2004 | Silver |
| Hull Fishing Vessel Owners's (Allied) Co Ltd | 01467338 | 09/10/1992 | 13/10/2005 | Dissolved |
| LIONMAN LIMITED | 02019266 | 21/12/1993 | 30/06/2004 | Gold |
| OCEAN YOUTH TRUST NORTH | 03898088 | 22/12/1999 | 01/04/2008 | Gold |
| Rayshore Ltd | 02181313 | 03/10/1992 | 30/06/2004 | Dissolved |
| THE UNIVERSITY OF HULL MARITIME HISTORY TRUST | 03714387 | 01/03/2007 | 19/11/2019 | Silver |
| Ultrarad Technical Services Ltd | 02000746 | 15/11/1991 | 01/02/1996 | Dissolved |
| VOYAGER FISHING COMPANY LIMITED | 02524008 | 19/07/1991 | 11/07/1995 | Gold |