| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Alreco (No.2.) Ltd | 00259286 | 06/04/1992 | Dissolved |
| Anglo Austral Mines | 00144131 | 25/01/1992 | Dissolved |
| Aveley Reclamation Ltd | 01272816 | 12/12/1994 | Dissolved |
| Avonmouth Farms Limited | 00274243 | 25/01/1991 | Dissolved |
| Clayton & Shuttleworth Ltd | 00909627 | 11/04/1992 | Dissolved |
| DARLINGTON RAILWAY PLANT AND FOUNDRY COMPANY,LIMITED | 00063437 | 11/04/1992 | Insolvent |
| FAULKNER GREENE & COMPANY LIMITED | 00286421 | 19/02/1992 | Dissolved |
| Forsyth Presses Limited | 00781125 | 11/04/1991 | Dissolved |
| Ilkeston Metal & Waste Company Limited | 00432330 | 11/04/1991 | Dissolved |
| JOHN LEE OF GRANTHAM LIMITED | 00372447 | 11/04/1992 | Bronze |
| JOHN WILLIAMS (WISHAW) LIMITED | SC012445 | 19/05/1989 | Insolvent |
| LOTHIAN OFFSHORE LIMITED | SC053621 | 14/02/1989 | Insolvent |
| Lincoln Metal & Waste Company Ltd | 00306175 | 11/04/1992 | Dissolved |
| Loanport Limited | 00718401 | 11/04/1991 | Dissolved |
| Lothian Leasing & Drilling Ltd | SC050626 | 21/03/1989 | Dissolved |
| MUIRSHIEL BARYTES COMPANY LIMITED | SC024553 | 24/01/1989 | Insolvent |
| Mineral Search Ltd | 01182036 | 31/01/1992 | Dissolved |
| Mineral Search Ltd | 01182036 | 31/01/1992 | Dissolved |
| Oceanbridge Limited | 01071448 | 09/02/1991 | Dissolved |
| Platt Energy Ltd | 00944096 | 12/06/1992 | Dissolved |
| Portwall Mines Ltd | 00063265 | 28/06/1992 | Dissolved |
| Pyrites Co Ltd | 00116061 | 04/04/1992 | Dissolved |
| R T Z Energy Ltd | 00813966 | 19/02/1992 | Dissolved |
| R T Z Pensions Administration Ltd | 01686232 | 01/03/1993 | Dissolved |
| Rio Tinto Africa Limited | 01173121 | 03/04/1991 | Dissolved |
| Rio Tinto Australia Limited | 01173212 | 03/04/1991 | Dissolved |
| Rio Tinto Holdings (U K) Ltd | 00194347 | 03/04/1992 | Dissolved |
| Rio Tinto Incentive Trustees Ltd | 00957666 | 03/04/1992 | Dissolved |
| Rio Tinto Industrial Ltd | 00649881 | 03/04/1992 | Dissolved |
| Rio Tinto Iron Ore Ltd | 00897935 | 03/04/1992 | Dissolved |
| Rio Tinto Metals Marketing Ltd | 00291931 | 03/04/1992 | Dissolved |
| Severnside Trading Estate Co Ltd | 00955217 | 25/01/1991 | Dissolved |
| Stablex International Holdings Ltd | 01354257 | 30/05/1992 | Dissolved |
| Stablex International Holdings Ltd | 01354257 | 19/10/1992 | Dissolved |
| THOS. W. WARD (RAW MATERIALS) LIMITED | 00178271 | 11/04/1991 | One Red Flag |
| The Consolidated Zing Company Ltd | 00256286 | 01/05/1991 | Dissolved |
| The Railway and General Engineering Co Ltd | 00065768 | 11/04/1992 | Dissolved |
| Thos W Ward (Industrial Supplies) Ltd | 00553512 | 17/04/1992 | Dissolved |
| Thos. W Ward (Cranes) Ltd | 00246564 | 11/04/1992 | Dissolved |
| Tunnel Holdings Ltd | 00987880 | 25/01/1991 | Dissolved |
| Tunnel Industrial Services Limited | 01301177 | 29/06/1991 | Dissolved |
| Tunnel Industries Limited | 00474391 | 29/06/1991 | Dissolved |
| Tunnel Trading Ltd | 00304880 | 29/06/1991 | Dissolved |
| WIDNES FOUNDRY & ENGINEERING CO LIMITED | 00316731 | 11/04/1992 | Insolvent |
| Ward Longbottom Ltd | 00151434 | 11/04/1992 | Dissolved |
| Ward,Thos W,(Engineers) Ltd | 00644694 | 11/04/1992 | Dissolved |
| Zinc Corporation (London) Ltd | 00645854 | 25/01/1992 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| African Minerals Development Ltd | 01221344 | 25/01/1992 | 07/12/1992 | Dissolved |
| Alexander Metal Co Plc | 00368470 | 29/03/1992 | 19/02/1993 | Dissolved |
| FAREHAVEN LIMITED | 02796152 | 24/03/1993 | 18/03/1994 | Dissolved |
| IMPERIAL SMELTING CORPORATION LIMITED | 00241508 | 02/06/1992 | 24/08/1993 | Dissolved |
| Lincoln Metal & Waste Company Ltd | 00306175 | 11/04/1992 | 26/08/1992 | Dissolved |
| MELTON LAND LIMITED | 00529172 | 15/05/1992 | 24/05/1994 | Dissolved |
| R T Z Four Ltd | 01526776 | 15/05/1992 | 10/12/1993 | Dissolved |
| R.T.Z. COMPUTER SERVICES LIMITED | 00284853 | 09/06/1992 | 26/08/1992 | Insolvent |
| RIO TINTO TECHNOLOGY DEVELOPMENT LIMITED | 00221805 | 10/04/1992 | 09/02/1995 | Dissolved |
| Town Woodhouse Ltd | 00383187 | 11/04/1992 | 26/08/1992 | Dissolved |