| Company | Timeline | Status | |
| Halls Participations Limited Director • Fine Arts Auctioneer | 27 Apr 2005←1 Year 2 Months→20 Jul 2006 | Active | |
| MHS Educational Trust Limited Director • Auctioneer | 19 Mar 2003←3 Years→20 Jul 2006 | Dissolved | |
| Halls 2008 Limited Director • Fine Art Auctioneer | 21 Mar 1995←11 Years→20 Jul 2006 | Active | |
Archway House Ltd Director • Fine Art Auctioneer | 21 Mar 1995←11 Years→20 Jul 2006 | Dissolved | |
| Sotheby's London Limited Director • Fine Art Auctioneer | 10 Nov 1991←1 Year 2 Months→31 Jan 1993 | Dissolved | |
