| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| BRICHAR LIMITED | 03195981 | 08/05/1996 | Dissolved |
| BURNETT AND COMPANY (NEWCASTLE) LIMITED | 00982618 | 16/10/1991 | Gold |
| E. MERCER & CO (HULL) LIMITED | 00080538 | 16/10/1991 | Gold |
| E.C.U.K. (SHIPPING) LIMITED | 01599922 | 20/10/1994 | Dissolved |
| FERRO CARBON LIMITED | 05809674 | 08/05/2006 | Dissolved |
| Ferro Carbon (Scotland) Ltd | SC151404 | 14/09/1994 | Dissolved |
| HOLDERNESS ENERGY GROUP LIMITED | 00182775 | 16/10/1991 | Gold |
| OPENDOME LIMITED | 00982146 | 16/10/1991 | Gold |
| PARKHILL LIMITED | 06732701 | 10/11/2008 | Dissolved |
| Parkhill Construction Ltd | 06293068 | 18/08/2008 | Dissolved |
| Seabold Ltd | 01912494 | 31/12/1991 | Dissolved |
| Stonestride Ltd | 02427202 | 28/09/1991 | Dissolved |
| TRIDENT FUEL AND SHIPPING LIMITED | 02784279 | 01/04/1993 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| MARINA PLACE LIMITED | 07137467 | 27/01/2010 | 30/06/2016 | Gold |