| Company | Timeline | Status | |
| Peter Ratcliff Dendrochronology Ltd Director • Director | 17 Jun 2015←10 Years→Current | Active | |
| Amati Publishing Limited Director • Violin Maker And Repairer | 1 Mar 1995←1 Year 7 Months→22 Oct 1996 | Dissolved | |
| Maggini Publishing Limited Director • Violin Maker And Repairer | 1 Dec 1993←2 Years 10 Months→22 Oct 1996 | Active | |
