| Company | Timeline | Status | |
| Optical Test & Calibration (UK) Limited Director • Unreported | 1 Dec 2023←1 Year 11 Months→Current | Active | |
| Optical Test And Calibration Limited Director • Unreported | 1 Dec 2023←1 Year 11 Months→Current | Active | |
| Optical Test And Calibration (Holdings) Limited Director • Unreported | 2 Oct 2023←2 Years 1 Month→Current | Active | |
