| Company | Timeline | Status | |
| The Choral Network Ltd Director • Retired Publisher | 28 Dec 2016←8 Years→Current | Active | |
| Philharmonia Chorus Limited Director • Retired | 15 Jul 2009←4 Years→10 Jul 2014 | Active | |
| Philharmonia Chorus Limited Director • Editor | 11 Oct 2004←2 Years 11 Months→6 Sep 2007 | Active | |
