| Company | Timeline | Status | |
| Strange Place Concerts Limited Director • Concert Promoter | 6 Feb 2009←16 Years→Current | Active | |
| Marshall ARTS Talent Limited Secretary • Concert Promoter | 5 Jun 2008←17 Years→Current | Active | |
| Marshall ARTS Management Limited Director • Concert Promoter | 2 Feb 2004←21 Years→Current | Active | |
| Ticketnet Limited Director • Concert Promoter | 1 May 1998←27 Years→Current | Active | |
| No Extra Charge Limited Director • Concert Promoter | 19 Oct 1995←30 Years→Current | Active | |
| London Towers Basketball Limited Director • Concert Promoter | 20 Nov 1993←32 Years→Current | Active | |
| Marshall ARTS Limited Director • Concert Promoter | 23 Jan 1992←33 Years→Current | Active | |
| Concertsound Clair Limited Director • Concert Promoter | 3 Jan 1992←17 Years→5 Jan 2009 | Dissolved | |
| Marshall ARTS (Arenas) Limited Director • Concert Promoter | 19 Nov 1991←34 Years→Current | Active | |
| Jenny's Tunes Limited Director • Concert Promoter | 19 Nov 1991←34 Years→Current | Active | |
