| Company | Timeline | Status | |
| Jellybaby Limited Director • Estate Manager | 15 May 2015←10 Years→Current | Active | |
| Charles Simpson Investments Ltd Director • Director | 25 Mar 2010←15 Years→Current | Active | |
| Limit Caravan Park Limited(The) Director • Company Director | 28 Dec 1991←33 Years→Current | Active | |
| Great Bradley (Withypool) Limited Director • Company Director | 28 Dec 1990←34 Years→Current | Active | |
| Charles Simpson Caravans Limited Director • Company Director | 28 Dec 1990←34 Years→Current | Active | |
| Elmwood Finance Limited Director • Company Director | 28 Dec 1990←34 Years→Current | Active | |
| Soldrock Limited Director • Company Director | 7 Dec 1990←34 Years→Current | Active | |
| Charles Simpson Motors Limited Director • Unreported | 1 Jan 1970←55 Years→Current | Active | |
| Green Acres Mobile Home Park Limited Director • Unreported | 1 Jan 1970←55 Years→Current | Active | |
| Alvaston Mobile Home Park Limited Director • Unreported | 1 Jan 1970←55 Years→Current | Active | |
