| Company | Timeline | Status | |
| Concrete Utilities Limited Director • Director | 5 May 2014←11 Years→Current | Active | |
| C.U. Phosco Limited Director • Company Director | 24 Sep 2012←13 Years→Current | Active | |
| C. U. Phosco Lighting Limited Director • Director | 18 May 2004←21 Years→Current | Active | |
| Amwell Investments Limited Director • Director | 18 May 2004←21 Years→Current | Active | |
| C. U. Lighting Limited Director • Managing Director | 20 Nov 2001←23 Years→Current | Active | |
| Birch Engineering (Cuffley) Limited Secretary • Unreported | 30 Sep 1999←26 Years→Current | Active | |
| C. U. Ware Plc Director • Director | 3 Feb 1998←27 Years→Current | Active | |
| Birch Engineering (Cuffley) Limited Director • Managing Director | 14 Mar 1994←31 Years→Current | Active | |
| Phosco Limited Director • Joint Managing Director | 1 Jan 1970←55 Years→Current | Active | |
