| Company | Timeline | Status | |
| The John Oliver Organisation Limited Secretary • Director | 3 Mar 1998←27 Years→Current | Active | |
| The John Oliver Organisation Limited Director • Director | 3 Mar 1998←27 Years→Current | Active | |
| Cardiff City Football Club Limited Director • Entertainer | 28 Oct 1993←9 Months→12 Aug 1994 | Active | |
