| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Pteridium Ltd | 03417213 | 16/10/1997 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| A. TULLOCH & SONS (HOLDINGS) LIMITED | SC056532 | 31/08/1989 | 01/03/1995 | Dissolved |
| ADM ENERGY PLC | 05311866 | 29/09/2008 | 31/03/2014 | Amber |
| ALFRED MCALPINE SLATE PENRHYN LIMITED | 00498810 | 17/04/1992 | 30/06/1995 | Gold |
| Alfred McAlpine Asphalt Ltd | 00912874 | 31/01/1994 | 30/06/1995 | Dissolved |
| BARRAS HILL QUARRY LIMITED | SC081922 | 10/02/1990 | 01/03/1995 | Dissolved |
| BAXTER'S (BANGLEY) QUARRY COMPANY LIMITED | SC046221 | 10/02/1990 | 01/03/1995 | Dissolved |
| BODFARI QUARRY PRODUCTS LIMITED | 02131388 | 15/02/1993 | 18/05/1995 | Not Trading |
| CARILLION (AM) LIMITED | 01367044 | 17/04/1991 | 30/06/1995 | Insolvent |
| Energy assets ltd | 00356092 | 17/04/1991 | 30/09/1991 | Dissolved |
| Johnston Surfacing Ltd | 00959220 | 17/04/1992 | 01/03/1995 | Dissolved |
| KAZERA GLOBAL PLC | 05697574 | 01/09/2008 | 31/07/2011 | Bronze |
| Marcon Topmix Ltd | 00848453 | 17/04/1992 | 01/03/1995 | Dissolved |
| Minimac Ltd | 01834428 | 17/04/1992 | 01/03/1995 | Dissolved |
| PERSICLE LIMITED | 03453690 | 13/03/1998 | 23/01/2006 | Silver |
| PITTAWAY DECORATIVE GROUP LIMITED | 03853571 | 08/10/1999 | 03/04/2000 | Gold |
| Penrhyn Quarries Ltd | 00727102 | 31/01/1994 | 30/06/1995 | Dissolved |
| Phoenix Concrete Ltd | 02437766 | 17/04/1992 | 01/03/1995 | Dissolved |
| Premier Stone Company Ltd | 00083938 | 17/04/1992 | 01/03/1995 | Dissolved |
| QUARRICRETE LIMITED | 00735159 | 17/04/1992 | 01/03/1995 | Strike Off |
| SEAMLESS SURFACES LIMITED | 00972510 | 01/01/2000 | 03/04/2000 | Dissolved |
| SEAMLESS SURFACES LIMITED | 00972510 | 17/03/1998 | 03/04/2000 | Dissolved |
| Seamless Holdings Ltd | 03502025 | 01/01/2000 | 03/04/2000 | Dissolved |
| Seamless Holdings Ltd | 03502025 | 17/03/1998 | 03/04/2000 | Dissolved |
| Sempol Surfaces Ltd | 01298342 | 01/01/2000 | 03/04/2000 | Dissolved |
| Sempol Surfaces Ltd | 01298342 | 17/03/1998 | 03/04/2000 | Dissolved |
| Sitecrete Ltd | 01554565 | 17/04/1992 | 01/03/1995 | Dissolved |
| TARMAC SAND & GRAVEL LIMITED | SC049264 | 31/01/1994 | 01/03/1995 | Dissolved |
| TARMAC UK HOLDINGS LIMITED | 01518970 | 17/04/1992 | 01/03/1995 | Not Trading |
| TARMAC UK LIMITED | 00089355 | 17/04/1992 | 01/03/1995 | Not Trading |
| TULLOCH QUARRIES LIMITED | SC060038 | 31/08/1989 | 01/03/1995 | Dissolved |
| Tarmac Products Ltd | 01786079 | 17/04/1992 | 01/03/1995 | Dissolved |
| The Buttermere & Westmorland Green Slate Company Ltd | 00239521 | 31/01/1994 | 30/06/1995 | Dissolved |
| WINNER DEVELOPMENTS LIMITED | 02319285 | 14/06/1991 | 28/01/2000 | Not Trading |