| Company | Timeline | Status | |
| Amey Rail Services Limited Secretary • Unreported | 12 Mar 2025←7 Months→Current | Active | |
| Amey Rail Holdings Limited Secretary • Unreported | 10 Mar 2025←7 Months→Current | Active | |
| Amey Defence Equipment (Fleet Management) Limited Secretary • Unreported | 20 May 2024←1 Year 5 Months→Current | Active | |
| Project Ardent Bidco Limited Secretary • Unreported | 24 Jan 2023←2 Years 9 Months→Current | Active | |
| Thalia Services Limited Secretary • Unreported | 1 Jun 2022←12 Months→30 May 2023 | Active | |
| Amey (Abd) Limited Secretary • Unreported | 8 Mar 2021←11 Months→1 Feb 2022 | Dissolved | |
| Amey Defence Equipment (Assets) Limited Secretary • Unreported | 5 Mar 2021←4 Years→Current | Active | |
| Amey Defence Equipment (Assets) Holdings Limited Secretary • Unreported | 4 Mar 2021←4 Years→Current | Active | |
| Amey Defence Equipment (Services) Limited Secretary • Unreported | 10 Aug 2020←5 Years→Current | Active | |
| Amey Defence Equipment (Services) Holdings Limited Secretary • Unreported | 10 Aug 2020←5 Years→Current | Active | |
