| Company | Timeline | Status | |
| Silverstone Racing School Limited Director • Director | 24 Apr 1991←2 Years→24 Apr 1993 | Active | |
| The BRDC Limited Director • Director | 24 Apr 1991←8 Months→31 Dec 1991 | Active | |
| Silverstone Grand Prix Limited Director • Director | 24 Apr 1991←8 Months→31 Dec 1991 | Active | |
| Silverstone Club Limited Director • Director | 24 Apr 1991←8 Months→31 Dec 1991 | Active | |
| Silverstone Estates Limited Director • Director | 24 Apr 1991←8 Months→31 Dec 1991 | Active | |
| Silverstone Circuits Limited Director • Director | 24 Apr 1991←8 Months→31 Dec 1991 | Active | |
| British Racing Drivers Club Limited(The) Director • Director | 24 Apr 1991←8 Months→31 Dec 1991 | Active | |
