| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| APPLEDORE SHIPBUILDERS LIMITED | 00186726 | 29/12/1991 | One Red Flag |
| Adamfine Limited | 01095083 | 31/03/1991 | Dissolved |
| BARCLAY CURLE LIMITED | SC001381 | 31/03/1989 | Insolvent |
| Cremyll Realisations Ltd | 03751219 | 13/04/1999 | Dissolved |
| Gamefine Ltd | 01094891 | 31/03/1991 | Dissolved |
| Larkgrade Ltd | 01095002 | 31/03/1991 | Dissolved |
| Parlcroft Ltd | 01096027 | 31/03/1991 | Dissolved |
| SMM APPLEDORE LIMITED | 00775474 | 14/12/1991 | Strike Off |
| Screen-Ad Ltd | 01096133 | 31/03/1991 | Dissolved |
| WEARDALE STEEL (WOLSINGHAM) LIMITED | 01709532 | 02/08/1991 | Insolvent |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| APPLEDORE LAND LIMITED | 01098114 | 29/12/1991 | 26/04/2017 | Insolvent |
| BPB LIMITED | 00147271 | 10/08/1991 | 31/07/1992 | Bronze |
| BRUNTON'S PROPELLERS LIMITED | 00156484 | 10/05/1992 | 26/04/2017 | Silver |
| Devon Line Ltd | 02816499 | 22/06/1993 | 03/01/1996 | Dissolved |
| J. STONE ENGINEERING LIMITED | 01631487 | 14/12/1991 | 26/04/2017 | Not Trading |
| JAMES ROBERTSON DECK MACHINERY LIMITED | 01720454 | 01/08/1991 | 26/04/2017 | Dissolved |
| LANGHAM ENTERPRISES LIMITED | 01641689 | 11/12/1991 | 26/04/2017 | Not Trading |
| LANGHAM FARMS LIMITED | 04875344 | 22/08/2003 | 26/04/2017 | Gold |
| LANGHAM INDUSTRIES LIMITED | 01491878 | 25/08/1991 | 26/04/2017 | Gold |
| LANGHAM LAND LIMITED | 01628152 | 31/08/1991 | 26/04/2017 | Silver |
| PORTLAND HARBOUR AUTHORITY LIMITED | 03002686 | 13/12/1994 | 26/04/2017 | Silver |
| PORTLAND HARBOUR DEVELOPMENT LIMITED | 03401482 | 08/08/1997 | 26/04/2017 | Dissolved |
| PORTLAND HARBOUR SERVICES LIMITED | 03292078 | 13/12/1996 | 26/04/2017 | Dissolved |
| PORTLAND PILOTAGE LIMITED | 03304530 | 20/01/1997 | 26/04/2017 | Dissolved |
| PORTLAND PORT LIMITED | 03158010 | 25/03/1996 | 26/04/2017 | Gold |
| PORTLAND STEVEDORING LIMITED | 03292076 | 13/12/1996 | 26/04/2017 | Dissolved |
| SMG22 LTD | 01430559 | 11/12/1991 | 26/04/2017 | Dissolved |
| SMM BUSINESS PARK LIMITED | 02131750 | 11/12/1991 | 26/04/2017 | Dissolved |
| SMO22 LTD | 00394861 | 31/08/1991 | 26/04/2017 | Dissolved |
| STONE FASTENERS LIMITED | 01627558 | 31/07/1991 | 26/04/2017 | Dissolved |
| STONE FOUNDRIES LIMITED | 01627562 | 31/07/1991 | 26/04/2017 | Silver |
| STONE MANGANESE MARINE LIMITED | 05606959 | 28/10/2005 | 26/04/2017 | Not Trading |
| STONE MARINE LIMITED | 00405295 | 14/12/1991 | 26/04/2017 | Not Trading |
| STONE MARINE PROPULSION LIMITED | 00147133 | 01/08/1991 | 26/04/2017 | Amber |
| STONE MARINE SERVICES LIMITED | SC202418 | 24/12/1999 | 26/04/2017 | Silver |
| STONE MARINE SHIPCARE LIMITED | 00058613 | 07/09/1991 | 26/04/2017 | Gold |
| THOMAS REID & SONS (PAISLEY) LIMITED | 01473273 | 11/12/1992 | 26/04/2017 | Not Trading |
| TRIDAN ENGINEERING LIMITED | 01548920 | 25/07/1991 | 26/04/2017 | Silver |
| TYRE EQUIPMENT CO LTD | 02176950 | 29/10/1992 | 24/10/1995 | Not Trading |
| TYREZ LIMITED | 00826678 | 09/07/1991 | 24/10/1995 | Amber |
| VACU-LUG INDUSTRIAL TYRES LIMITED | 01986003 | 09/07/1991 | 24/10/1995 | Not Trading |
| VACU-LUG PROPERTIES LIMITED | 00964789 | 09/07/1991 | 24/10/1995 | Dissolved |
| VACU-LUG TRACTION TYRES(OVERSEAS)LIMITED | 00504229 | 09/07/1991 | 24/10/1995 | Dissolved |
| VACU-LUG TYRES LIMITED | 01653421 | 09/07/1991 | 24/10/1995 | Not Trading |
| VACULUG LIMITED | 00488961 | 09/07/1992 | 24/10/1995 | Silver |
| VACULUG TECHNOLOGIES LIMITED | 01654579 | 09/07/1991 | 24/10/1995 | Not Trading |
| Vacu-Lug (Scotland) Ltd | SC032498 | 10/07/1989 | 24/10/1995 | Dissolved |
| WINTERS MARINE LIMITED | 01030362 | 17/08/1991 | 26/04/2017 | Silver |