| Company | Timeline | Status | |
| Ricardo UK Limited Director • Director | 28 Mar 2003←3 Months→18 Jul 2003 | Active | |
| Ricardo Investments Limited Director • Director | 1 Jul 2000←3 Years→18 Jul 2003 | Active | |
| Filbuk 001 Limited Director • Engineering Director | 1 Sep 1997←10 Months→1 Jul 1998 | Dissolved | |
| Marelli Automotive Systems Europe Plc Director • Engineering Director | 1 Aug 1993←5 Years→5 Jul 1999 | Active | |
