| Company | Timeline | Status | |
| Asian Art In London Director • Art Dealer | 26 Jan 1998←1 Year 10 Months→28 Nov 1999 | Active | |
| Christie's Assets Limited Director • Fine Art Dealer | 28 Nov 1994←3 Years→29 May 1998 | Active | |
| Christie's Assets Holdings Limited Director • Art Dealer | 1 Dec 1992←5 Years→29 May 1998 | Active | |
| Michael And Henrietta Spink Limited Director • Art Dealer | 31 Dec 1990←35 Years→Current | Active | |
| Michael And Henrietta Spink Limited Director • Unreported | 1 Jan 1970←56 Years→Current | Active | |
