| Company | Timeline | Status | |
| Tnarg Tnarg Limited Director • Writer | 25 Nov 1998←26 Years→Current | Active | |
| Taken For Granted Productions Limited Director • Writer | 19 Sep 1996←27 Years→20 Aug 2024 | Dissolved | |
| Grant Naylor Productions Limited Director • Company Director | 1 Jan 1970←55 Years→Current | Active | |
