| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| CKH UK CO 7 LIMITED | 07509457 | 01/03/2011 | Dissolved |
| CKI UK WATER LIMITED | 05095089 | 01/12/2006 | Dissolved |
| Country Hotels of Scotland Ltd | SC185264 | 05/06/1998 | Dissolved |
| ECLIPSE NETWORK GUARANTEE LIMITED | 07280880 | 10/06/2010 | Dissolved |
| Finco Ltd | 06414129 | 19/11/2007 | Dissolved |
| ICENI WATERS LIMITED | 06113403 | 02/08/2011 | Dissolved |
| J2 PROPERTY DEVELOPMENTS LIMITED | SC228154 | 19/02/2002 | Gold |
| Junior Holdco Ltd | 06414096 | 19/11/2007 | Dissolved |
| STRATHBLANE COUNTRY HOUSE HOTEL LIMITED | SC201078 | 03/07/2003 | Dissolved |
| UK ELECTRICITY NETWORK HOLDINGS LIMITED | 07509450 | 22/02/2011 | Dissolved |
| UK WATER (2011) LIMITED | 07509453 | 22/02/2011 | Dissolved |
| WALES & WEST GAS NETWORKS (JUNIOR FINANCE) LIMITED | 05149491 | 10/10/2012 | Dissolved |
| WALES & WEST GAS NETWORKS (SENIOR FINANCE) LIMITED | 05149493 | 10/10/2012 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CAMBRIDGE WATER PLC | 03175861 | 01/12/2006 | 02/08/2011 | Amber |
| Hutchison I D H Development Ltd | 03087718 | 01/09/1995 | 01/07/1999 | Dissolved |
| Hutchison I D H Ltd | 02986130 | 01/03/1995 | 01/07/1999 | Dissolved |
| NORTHERN GAS NETWORKS FINANCE PLC | 05575923 | 14/11/2005 | 04/07/2006 | Silver |
| NORTHERN GAS NETWORKS HOLDINGS LIMITED | 05213525 | 17/12/2004 | 04/07/2006 | Silver |
| NORTHERN GAS NETWORKS LIMITED | 05167070 | 31/05/2005 | 04/07/2006 | Silver |
| NORTHUMBRIAN SERVICES LIMITED | 03114615 | 14/10/2011 | 16/03/2016 | Silver |
| Rosslea Hall Country House Hotel Ltd | SC176033 | 05/06/1998 | 07/03/2005 | Dissolved |