| Company | Timeline | Status | |
| Brooksbank Architecture & Design LLP Designated LLP Member • Unreported | 22 Feb 2024←1 Year 9 Months→Current | Active | |
| Bear Brooksbank LLP Designated LLP Member • Unreported | 13 Oct 2023←2 Years 1 Month→Current | Active | |
| York Museums And Gallery Trust Director • Art Adviser | 3 Oct 2002←3 Years→13 Oct 2005 | Active | |
| Burton Agnes Hall Preservation Trust Limited Director • Director | 9 Nov 2001←24 Years→Current | Active | |
| Sheffield Galleries & Museums Trust Director • Valuer & Art Adviser | 22 Sep 1998←5 Years→28 Jan 2004 | Dissolved | |
