| Company | Timeline | Status | |
| Cardain Partners LLP Non-designated LLP Member • Unreported | 6 Apr 2014←10 Years→3 Mar 2025 | Active | |
| FPT Commercial Properties LLP Non-designated LLP Member • Unreported | 14 Sep 2010←15 Years→Current | Active | |
| The Frost Partnership (Berkshire) Limited Director • Chartered Surveyor | 22 Jun 2006←18 Years→3 Mar 2025 | Active | |
| Buckinghamshire Community Foundation Director • Chartered Surveyor | 14 Sep 2004←2 Years 7 Months→1 May 2007 | Active | |
| J.C. Frost & Co (Burnham) Limited Director • Chartered Surveyor | 7 Mar 1995←30 Years→3 Mar 2025 | Active | |
| J.C. Frost & Co. Surveyors (Thames Valley) Limited Director • Chartered Surveyor | 28 Feb 1995←30 Years→3 Mar 2025 | Active | |
| Maltman's Green School Trust Limited Director • Chartered Surveyor | 1 Jan 1993←19 Years→31 Mar 2012 | Active | |
| J.C. Frost & Co. (Gerrards Cross) Ltd Director • Chartered Surveyor | 3 May 1992←32 Years→3 Mar 2025 | Active | |
| J. C. Frost & Co. (Holdings) Limited Director • Chartered Surveyor | 2 May 1992←32 Years→3 Mar 2025 | Active | |
| The Buckinghamshire Historic Buildings Trust Director • Chartered Surveyor | 30 Nov 1991←24 Years→11 Jul 2016 | Active | |
