| Company | Timeline | Status | |
| Music And Letters Trust Director • Musicologist | 5 Aug 2016←5 Years→6 Jul 2022 | Active | |
Vida International Director • Editor | 31 Oct 1997←17 Years→23 Jun 2015 | Dissolved | |
Vida International Secretary • Unreported | 8 Aug 1997←17 Years→23 Jun 2015 | Dissolved | |
| Royal Musical Association(The) Director • Editor | 30 Nov 1996←2 Years 11 Months→20 Nov 1999 | Active | |
