| Company | Timeline | Status | |
| Thunderbird Topco Limited Director • Director | 17 Nov 2017←7 Years→13 Jan 2025 | Active | |
| John Lawrie Metals Limited Director • Director | 21 Oct 1996←25 Years→28 Feb 2022 | Active | |
Sinclair & Hay Limited Director • Metal Merchant | 31 Aug 1989←28 Years→8 Feb 2018 | Dissolved | |
