| Company | Timeline | Status | |
| Mount Everest Foundation (The) Director • Archivist & Historian Of Carto | 13 Feb 2007←6 Years→1 Jan 2014 | Active | |
| London Metropolitan University Director • Consultant | 3 Jan 2003←7 Years→31 Mar 2010 | Active | |
| Surrey History Trust Director • National Archivist | 27 Mar 2000←2 Years 7 Months→31 Oct 2002 | Active | |
International Records Management Trust Director • Ret Uk Keeper Of Public Record | 16 Dec 1997←22 Years→10 Mar 2020 | Dissolved | |
| The Hereford Mappa Mundi Trustee Company Limited Director • Archinist Public Record Office | 31 Jan 1993←4 Years→30 May 1997 | Active | |
| Imago Mundi Limited Director • Librarian | 14 Nov 1991←31 Years→4 Oct 2023 | Converted/Closed | |
