| Company | Timeline | Status | |
| Tanfield Homes Ltd Director • Director | 4 Sep 2025←3 Months→Current | Active | |
| North Tanfield Farm Limited Director • Director | 23 Oct 2024←1 Year 1 Month→Current | Active | |
| Tanfield Nature Limited Director • Director | 18 Sep 2024←1 Year 2 Months→Current | Active | |
| Mickley Hydro Scheme Limited Director • Director | 12 Apr 2023←2 Years 8 Months→Current | Active | |
| Elizabeth Mackay Properties Ltd Director • Director | 22 Sep 2020←2 Years→27 Sep 2022 | Dissolved | |
| Tanfield Woodlands Limited Director • Director | 16 Apr 2020←5 Years→Current | Active | |
| Tanfield Springs Ltd Director • Director | 12 Sep 2019←6 Years→Current | Active | |
| Tanfield Estate Company Limited Director • Director | 30 Nov 2018←7 Years→Current | Active | |
| Tanfield Lodge Developments Limited Director • Drector | 30 May 2017←8 Years→Current | Active | |
| Yorkshire Hydro Limited Liability Partnership Designated LLP Member • Unreported | 6 Nov 2008←17 Years→Current | Active | |
