| Company | Timeline | Status | |
| Stowe School Limited Director • Chartered Surveyor | 4 Jan 2017←8 Years→Current | Active | |
| Europa House Investments Limited Director • Chartered Surveyor | 1 Apr 2014←11 Years→Current | Active | |
| Cardain Partners LLP Designated LLP Member • Unreported | 21 Mar 2014←11 Years→Current | Active | |
| Papplewick Educational Trust Limited Director • Estate Agent | 26 Apr 2011←14 Years→Current | Active | |
| FPT Commercial Properties LLP Designated LLP Member • Unreported | 14 Sep 2010←15 Years→Current | Active | |
| The Frost Partnership (Berkshire) Limited Director • Chartered Surveyor | 22 Jun 2006←19 Years→Current | Active | |
| J.C. Frost & Co (Burnham) Limited Director • Chartered Surveyor | 7 Mar 1995←30 Years→Current | Active | |
| J.C. Frost & Co. Surveyors (Thames Valley) Limited Director • Chartered Surveyor | 28 Feb 1995←30 Years→Current | Active | |
| J.C. Frost & Co Executive Rentals (Windsor) Ltd Director • Chartered Surveyor | 22 May 1992←33 Years→Current | Active | |
| J. C. Frost & Co. (Holdings) Limited Director • Chartered Surveyor | 2 May 1992←33 Years→Current | Active | |
