| Company | Timeline | Status | |
| Chalmers Soft Strip Limited Director • Director  | 5 Mar 2024←1 Year 8 Months→Current  | Active  | |
| Chalmers And Sons Demolition Limited Director • Managing Director  | 19 Dec 2018←6 Years→Current  | Active  | |
| Chalmers & Sons (Scotland) Limited Director • Asbestos Contrctor  | 9 May 2005←20 Years→20 Sep 2025  | Dissolved  | |
