| Company | Timeline | Status | |
| Iron Mountain Europe (Group) Limited Secretary • Unreported | 20 Jul 2006←1 Year 8 Months→31 Mar 2008 | Active | |
| Iron Mountain Mayflower Limited Secretary • Unreported | 30 Nov 2005←2 Years 4 Months→31 Mar 2008 | Dissolved | |
| Iron Mountain Holdings (Europe) Limited Secretary • Unreported | 30 Nov 2005←2 Years 4 Months→31 Mar 2008 | Active | |
Iron Mountain Ple Limited Secretary • Unreported | 30 Nov 2005←2 Years 4 Months→31 Mar 2008 | Dissolved | |
| Iron Mountain Group (Europe) Limited Secretary • Unreported | 30 Nov 2005←2 Years 4 Months→31 Mar 2008 | Dissolved | |
Iron Mountain Secure Shredding Limited Secretary • Unreported | 30 Nov 2005←2 Years 4 Months→31 Mar 2008 | Dissolved | |
| Iron Mountain Dims Limited Secretary • Unreported | 30 Nov 2005←2 Years 4 Months→31 Mar 2008 | Active | |
| Iron Mountain Europe Limited Secretary • Unreported | 30 Nov 2005←2 Years 4 Months→31 Mar 2008 | Active | |
Document Storage Company Limited(The) Secretary • Unreported | 30 Nov 2005←2 Years 4 Months→31 Mar 2008 | Dissolved | |
| Britannia Data Management Limited Secretary • Unreported | 30 Nov 2005←2 Years 4 Months→31 Mar 2008 | Active | |
