| Company | Timeline | Status | |
| David Billingham Ltd Director • Unreported | 6 Jan 2026←6 Days→Current | Active | |
| Central Calibration Services Limited Director • Unreported | 17 Apr 2025←4 Months→26 Aug 2025 | Active | |
| Chamois Metrology Limited Director • Unreported | 17 Apr 2025←4 Months→26 Aug 2025 | Active | |
| In2tec Limited Director • Unreported | 20 Dec 2017←7 Months→31 Jul 2018 | Active | |
