| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Dewar & Lawson Ltd | SC033807 | 07/06/1989 | Dissolved |
| F P Realisations Ltd | SC073248 | 07/06/1989 | Dissolved |
| Northern Ports Ltd | SC133209 | 30/08/1991 | Dissolved |
| Tilbury Container Engineering Services Ltd | 02515147 | 03/10/1995 | Dissolved |
| Tilbury Grain Handling Ltd | 02380594 | 16/11/1995 | Dissolved |
| Tilbury Plant Services Ltd | 02515158 | 03/10/1995 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| British Ports Industry Training Limited | 02759544 | 11/02/1993 | 22/05/2001 | Dissolved |
| FORTH ESTATE MANAGEMENT LIMITED | SC124716 | 27/08/1990 | 06/05/2005 | Not Trading |
| FORTH PORTS LIMITED | SC134741 | 24/10/1991 | 06/05/2005 | Bronze |
| FORTH PORTS TRUSTEES LIMITED | SC135109 | 19/02/1992 | 06/05/2005 | Not Trading |
| FORTH PROPERTIES LIMITED | SC124730 | 27/08/1990 | 01/11/1996 | One Red Flag |
| FORTH PROPERTY INVESTMENTS LIMITED | SC102967 | 14/09/1989 | 27/08/1990 | Gold |
| INTERNATIONAL TRANSPORT LIMITED | 02663120 | 03/10/1995 | 06/05/2005 | Silver |
| PNPF TRUST COMPANY LIMITED | 02147540 | 20/04/1994 | 27/08/2010 | Gold |
| PORT EMPLOYERS AND REGISTERED DOCK WORKERS PENSION FUND TRUSTEES LIMITED(THE) | 00678077 | 19/03/1997 | 12/12/2008 | Dissolved |
| PORT OF DUNDEE LIMITED | SC155442 | 24/11/1995 | 06/05/2005 | Bronze |
| PORT OF LONDON TILBURY LIMITED | 02876001 | 03/10/1995 | 06/05/2005 | Not Trading |
| PORT OF TILBURY LONDON LIMITED | 02659118 | 03/10/1995 | 06/05/2005 | Silver |
| ROSYTH REGENERATION LIMITED | SC152258 | 23/11/1994 | 03/10/1997 | Dissolved |
| ROYAL YACHT ENTERPRISES LIMITED | SC185472 | 28/05/1998 | 06/05/2005 | Silver |
| South Fife Enterprise Trust Ltd | SC098968 | 20/12/1988 | 25/01/1991 | Dissolved |
| THE UNITED KINGDOM MAJOR PORTS GROUP LIMITED | 02787097 | 22/01/2003 | 06/05/2005 | Silver |