| Company | Timeline | Status | |
| Painter Brothers Limited Director • Managing Director | 27 Oct 2025←1 Month→Current | Active | |
| Rail Safety And Standards Board Limited Director • Board Director | 30 Jun 2025←5 Months→Current | Active | |
| Balfour Beatty Rail Track Systems Limited Director • Managing Director | 17 Sep 2024←1 Year 2 Months→Current | Active | |
| Balfour Beatty Rail Residuary Limited Director • Managing Director | 17 Sep 2024←1 Year 2 Months→Current | Active | |
| Birse Metro Limited Director • Director & General Manager, Renewals | 1 Dec 2011←14 Years→Current | Active | |
| Birse Rail Limited Director • Director & General Manager, Renewals | 1 Dec 2011←10 Years→19 Jan 2022 | Dissolved | |
| Laser Rail Ltd Director • Director & General Manager, Renewals | 1 Dec 2011←14 Years→Current | Active | |
| Balfour Beatty Rail Limited Director • Director & General Manager, Renewals | 1 Dec 2011←14 Years→Current | Active | |
| Balfour Beatty Rail Infrastructure Services Limited Director • Director & General Manager, Renewals | 1 Dec 2011←14 Years→Current | Active | |
| Balfour Beatty Rail Projects Limited Director • Director & General Manager, Renewals | 1 Dec 2011←14 Years→Current | Active | |
