| Company | Timeline | Status | |
| Lothian Energy (Scotland) Ltd Director • Unreported | 24 Mar 2014←11 Years→Current | Active | |
| Atholl Homes (Scotland) Ltd Director • Unreported | 1 Dec 2012←12 Years→Current | Active | |
| Ritchie Brothers Holdings Limited Director • Company Director | 1 Dec 1997←27 Years→Current | Active | |
| Ritchie Brothers (Public Works Contractors) Limited Director • Company Director | 21 Nov 1997←27 Years→Current | Active | |
| R.B. Construction (Redhouse) Ltd Director • Company Director | 21 Nov 1997←27 Years→Current | Active | |
| Ritchie Brothers (Scotland) Ltd Director • Construction Industry Engineer | 28 Mar 1992←31 Years→15 Dec 2023 | Dissolved | |
