| Company | Timeline | Status | |
| Holland Fine Art Limited Director • Self-employed | 5 Jul 1995←30 Years→Current | Active | |
| Forty Ladbroke Grove (Freeholders) Limited Director • Company Director | 31 Mar 1992←33 Years→Current | Active | |
| Sotheby's London Limited Director • Fine Art Auctioneer | 10 Nov 1991←4 Years→15 May 1996 | Dissolved | |
