| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Beaumont Partners Ltd | 04160324 | 23/02/2001 | Dissolved |
| CLAYMARL ASSOCIATES LTD | 06520259 | 03/03/2008 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ARCHIVE SERVICES LIMITED | 02307053 | 01/02/2008 | 02/02/2009 | Dissolved |
| ARCUS DATA SECURITY LIMITED | 02640804 | 01/02/2008 | 02/02/2009 | Dissolved |
| BRITANNIA DATA MANAGEMENT LIMITED | 01575446 | 01/02/2008 | 02/02/2009 | Silver |
| CABLE & WIRELESS CIS SERVICES LIMITED | 02964774 | 26/01/1998 | 08/08/2000 | Silver |
| DATA DISPOSAL LIMITED | 01539621 | 01/02/2008 | 02/02/2009 | Dissolved |
| DATAVAULT HOLDINGS LIMITED | 03638141 | 01/02/2008 | 02/02/2009 | Dissolved |
| DATAVAULT LIMITED | SC080642 | 01/02/2008 | 02/02/2009 | Dissolved |
| DOCUMENT STORAGE COMPANY LIMITED(THE) | 02109452 | 01/02/2008 | 02/02/2009 | Dissolved |
| FILE-SAFE LIMITED | SC147075 | 01/02/2008 | 02/02/2009 | Dissolved |
| IRON MOUNTAIN (UK) PLC | 01478540 | 01/02/2008 | 02/02/2009 | Silver |
| IRON MOUNTAIN DIMS LIMITED | 02760301 | 01/02/2008 | 02/02/2009 | One Red Flag |
| IRON MOUNTAIN EUROPE (GROUP) LIMITED | 05882719 | 01/02/2008 | 02/02/2009 | Silver |
| IRON MOUNTAIN EUROPE LIMITED | 02321917 | 01/02/2008 | 12/02/2009 | Gold |
| IRON MOUNTAIN GROUP (EUROPE) LIMITED | 03667412 | 01/02/2008 | 02/02/2009 | Dissolved |
| IRON MOUNTAIN HOLDINGS (EUROPE) LIMITED | 03847309 | 01/02/2008 | 12/02/2009 | One Red Flag |
| IRON MOUNTAIN LIVINGSTON LIMITED | SC226889 | 01/02/2008 | 02/02/2009 | Dissolved |
| IRON MOUNTAIN MAYFLOWER LIMITED | 05042621 | 01/02/2008 | 02/02/2009 | Dissolved |
| IRON MOUNTAIN MDM LIMITED | 01447686 | 01/02/2008 | 02/02/2009 | Not Trading |
| IRON MOUNTAIN PLE LIMITED | 03714414 | 01/02/2008 | 02/02/2009 | Dissolved |
| IRON MOUNTAIN SCOTLAND (HOLDINGS) LIMITED | SC150077 | 01/02/2008 | 02/02/2009 | Dissolved |
| IRON MOUNTAIN SCOTLAND LIMITED | SC096145 | 01/02/2008 | 02/02/2009 | Dissolved |
| IRON MOUNTAIN SECURE SHREDDING LIMITED | 03094610 | 01/02/2008 | 02/02/2009 | Dissolved |
| JAD (93) LIMITED | SC143870 | 01/02/2008 | 02/02/2009 | Dissolved |
| Jones & Crossland Ltd | 00641974 | 01/02/2008 | 02/02/2009 | Dissolved |
| KESTREL DATA (UK) LIMITED | 01575457 | 01/02/2008 | 02/02/2009 | Dissolved |
| KESTREL DATA SERVICES LIMITED | 01177562 | 01/02/2008 | 02/02/2009 | Dissolved |
| Security Destruction Ltd | 02571871 | 01/02/2008 | 02/02/2009 | Dissolved |