| Company | Timeline | Status | |
| Mark Hill Auctions Limited Director • Company Director  | 22 Feb 2024←1 Year 8 Months→Current  | Active  | |
Antiques Young Guns Limited Director • Director  | 24 Feb 2014←5 Years→21 May 2019  | Dissolved  | |
| Mark Hill Publishing Limited Director • Publisher  | 16 Jan 2009←16 Years→Current  | Active  | |
| Edinheath Limited Director • Auction Director  | 8 Jun 2000←25 Years→Current  | Active  | |
