| Company | Timeline | Status | |
| Castle Construction Products Limited Director • Commercial Director | 22 May 2015←7 Years→24 Feb 2023 | Active | |
| Castle Environmental Management Limited Director • Commercial Director | 22 May 2015←7 Years→24 Feb 2023 | Active | |
| Castle Oils Limited Director • Commercial Director | 22 May 2015←7 Years→24 Feb 2023 | Active | |
| Castle Waste Services Limited Director • Commercial Director | 29 Nov 2010←12 Years→24 Feb 2023 | Active | |
| Welbeck Waste Management Limited Director • General Man | 11 Feb 1997←2 Years 7 Months→23 Sep 1999 | Active | |
| Derbyshire Waste Limited Director • General Manager | 5 Jun 1996←2 Years→22 Jun 1998 | Active | |
| BDR Waste Disposal Limited Director • General Manager | 29 Apr 1996←2 Years 2 Months→14 Jul 1998 | Active | |
| Wastenotts (Reclamation) Limited Director • Operations Manager | 27 Mar 1996←2 Years 2 Months→18 Jun 1998 | Active | |
| FCC Recycling (UK) Limited Director • General Manager | 27 Mar 1996←2 Years 2 Months→18 Jun 1998 | Active | |
