| Company | Timeline | Status | |
| Compass Sni Limited Secretary • Unreported | 30 Nov 2016←4 Years→8 Oct 2021 | Dissolved | |
| Serco Pik Limited Secretary • Unreported | 19 Apr 2016←5 Years→8 Oct 2021 | Dissolved | |
| Serco Pension Trustee Limited Secretary • Unreported | 11 Nov 2015←5 Years→8 Oct 2021 | Active | |
| The Serco Foundation Secretary • Unreported | 17 Nov 2014←6 Years→8 Oct 2021 | Active | |
| Serco-Ial Limited Director • Unreported | 10 Jul 2014←5 Years→1 Jul 2020 | Active | |
| Serco Environmental Services Limited Secretary • Unreported | 4 Jun 2014←7 Years→8 Oct 2021 | Dissolved | |
| Serco Caledonian Sleepers Limited Secretary • Unreported | 16 May 2014←7 Years→1 Nov 2021 | Active | |
Cubic Transportation Systems (Itms) Limited Secretary • Unreported | 22 Apr 2013←7 Months→26 Nov 2013 | Dissolved | |
Serco Collections Limited Secretary • Unreported | 7 Dec 2012←2 Years 2 Months→17 Feb 2015 | Dissolved | |
| Teleperformance Global Services UK Limited Secretary • Unreported | 8 Aug 2012←3 Years→31 Dec 2015 | Active | |
