| Company | Timeline | Status | |
| Insightful Corporation Director • Partner | 29 Apr 1993←32 Years→Current | Active | |
| Nortonlifelock STDL Limited Director • Venture Capitalist | 31 Dec 1991←3 Months→3 Apr 1992 | Dissolved | |
| Software Spectrum (UK) Limited Director • Venture Capitalist | 31 Dec 1991←3 Years→31 Dec 1994 | Active | |
