| Company | Timeline | Status | |
| Williams Tarr Developments Limited Director • Surveyor | 2 Sep 2002←9 Years→31 Dec 2011 | Active | |
| Williams Tarr Design & Build Limited Director • Company Director | 11 Dec 1996←15 Years→31 Dec 2011 | Dissolved | |
| Williams Tarr Homes Limited Director • Company Director | 14 Oct 1992←19 Years→31 Dec 2011 | Active | |
| Williams Tarr Construction Limited Director • Quantity Surveyor | 14 Nov 1991←20 Years→31 Dec 2011 | Active | |
