| Company | Timeline | Status | |
| Tarmac Services Limited Director • Managing Director Asphalt & Paving | 21 Nov 2022←3 Years→Current | Active | |
| Tarmac Holdings Limited Director • Managing Director Asphalt & Paving | 21 Nov 2022←3 Years→Current | Active | |
| Tarmac Building Products Limited Director • Managing Director Asphalt & Paving | 21 Nov 2022←3 Years→Current | Active | |
| Tarmac Caledonian Limited Director • Managing Director Asphalt & Paving | 21 Nov 2022←3 Years→Current | Active | |
| Tarmac Cement Limited Director • Managing Director Asphalt & Paving | 21 Nov 2022←2 Years 11 Months→1 Nov 2025 | Active | |
| Mineral Products Association (Scotland) Director • Director | 12 Apr 2022←3 Years→Current | Active | |
