| Company | Timeline | Status | |
| Av Birch Developments Limited Director • Manager | 9 May 2006←8 Years→28 Feb 2015 | Active | |
| A.V. Birch Limited Director • Unreported | 22 Oct 2003←22 Years→Current | Active | |
| Av Birch Developments Limited Director • Engineer | 1 Jan 2001←2 Years 10 Months→31 Oct 2003 | Active | |
