| Company | Timeline | Status | |
| Park Farm (Braintree) Partnership LLP Designated LLP Member • Unreported | 19 Sep 2014←9 Years→21 Nov 2023 | Dissolved | |
C.A.Blackwell (Farms) Limited Director • Farmer | 7 Jul 2005←12 Years→6 Sep 2017 | Dissolved | |
| C.A. Blackwell Group Limited Director • Farmer | 1 Jun 2001←14 Years→9 Jan 2016 | Active | |
| Premier Lime & Stone Company Limited Director • Farmer | 1 Jun 2001←14 Years→9 Jan 2016 | Active | |
| C. A. Blackwell (Contracts) Limited Director • Farmer | 27 Aug 1999←16 Years→9 Jan 2016 | Active | |
