| Company | Timeline | Status | |
| Silverstone Circuits Limited Director • Director | 16 Dec 1993←5 Years→31 Dec 1998 | Active | |
| Sytner London Limited Director • Company Director | 27 Jan 1993←1 Year 3 Months→4 May 1994 | Active | |
| Prophets (Gerrards Cross) Limited Director • Company Director | 27 Jan 1993←1 Year 3 Months→4 May 1994 | Active | |
Guy Salmon Honda Limited Director • Company Director | 27 Jan 1993←1 Year 3 Months→4 May 1994 | Dissolved | |
Prophets Garage Limited Director • Company Director | 27 Jan 1993←1 Year 3 Months→4 May 1994 | Dissolved | |
| Oxford Mazda Limited Director • Company Director | 27 Jan 1993←1 Year 3 Months→4 May 1994 | Active | |
| Sytner Holdings Limited Director • Company Director | 22 Dec 1992←1 Year 4 Months→4 May 1994 | Active | |
| British Racing Drivers Club Limited(The) Director • Company Director | 1 Oct 1992←1 Year 2 Months→16 Dec 1993 | Active | |
