| Company | Timeline | Status | |
| Sma Topco Limited Director • Unreported | 7 Feb 2025←11 Months→15 Jan 2026 | Active | |
| Salisbury Topco Limited Director • Unreported | 7 Feb 2025←11 Months→15 Jan 2026 | Active | |
| Cyrus Bidco Limited Director • Unreported | 14 Nov 2024←1 Year 2 Months→15 Jan 2026 | Active | |
| Smart Metering Systems Limited Director • Unreported | 22 Mar 2024←1 Year 9 Months→15 Jan 2026 | Active | |
| Sienna Midco 3 Limited Director • Unreported | 27 Nov 2023←2 Years 1 Month→15 Jan 2026 | Active | |
| Sienna Midco 2 Limited Director • Unreported | 27 Nov 2023←2 Years 1 Month→15 Jan 2026 | Active | |
| Sienna Bidco Limited Director • Unreported | 27 Nov 2023←2 Years 1 Month→15 Jan 2026 | Active | |
| Glasfaser Deutschland UK John Laing Holdings Limited Director • Director | 3 Aug 2022←2 Months→28 Oct 2022 | Dissolved | |
| Aqueduct Bidco Limited Director • Director | 11 Jul 2022←3 Years→Current | Active | |
| John Laing Group Limited Director • Director | 7 Jun 2022←3 Years→Current | Active | |
