| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ATRITOR HOLDINGS LIMITED | 02953850 | 29/07/1994 | Bronze |
| ATRITOR LIMITED | 01481073 | 26/12/1992 | Bronze |
| CRACK BONDING REPAIRS LIMITED | 01793544 | 01/10/1999 | Dissolved |
| FILTER ANTHRACITE LIMITED | 01483802 | 24/12/1990 | Dissolved |
| Hale House Management Ltd | 00538867 | 07/12/1998 | Dissolved |
| PHARMILL TECHNOLOGY LIMITED | 04534661 | 13/09/2002 | Dissolved |
| Pastillators Ltd | 00886316 | 30/01/1991 | Dissolved |
| Pco 116 Ltd. | 02951364 | 22/07/1994 | Dissolved |
| SDI-UNISTRIDE LIMITED | 02973363 | 28/02/2001 | Dissolved |
| Stempark Ltd | 01772123 | 30/01/1991 | Dissolved |
| Subsidence & Drainage Investigations Ltd | 04571079 | 23/10/2002 | Dissolved |
| TINGEL LIMITED | 04570155 | 23/10/2002 | Dissolved |
| Vanguard Leasing Ltd | 01880746 | 30/01/1992 | Dissolved |
| Welsh Smokeless Fuel Limited | 01044465 | 30/01/1991 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AUBREY-DOUGLAS LIMITED | 02399947 | 03/03/1994 | 06/11/2023 | Silver |
| CASA SPA LIMITED | 02815984 | 02/02/1994 | 28/04/2006 | Silver |
| GEA BARR-ROSIN LIMITED | 00636280 | 30/01/1991 | 31/12/1997 | Not Trading |
| Rosin Holdings Ltd | 02953851 | 29/07/1994 | 27/09/1994 | Dissolved |
| SDI-UNISTRIDE (SOUTHERN) LIMITED | 06857792 | 14/04/2009 | 28/08/2019 | Dissolved |
| Samara Flying Services Ltd | 01901063 | 04/10/1991 | 20/12/1993 | Dissolved |