| Company | Timeline | Status | |
| Klinger Limited Director • Engineer | 1 Jan 2000←10 Years→31 Dec 2009 | Active | |
| Klinger Holdings Limited Director • Engineer | 26 Apr 1994←15 Years→31 Dec 2009 | Active | |
Klinger Allan Limited Director • Engineer | 5 May 1990←28 Years→8 Jan 2019 | Dissolved | |
| Strathallan School Director • Company Director | 10 Mar 1990←8 Years→14 Mar 1998 | Active | |
