| Company | Timeline | Status | |
Mark Stephenson Consultancy Limited Director • Director | 9 Jan 2015←7 Months→1 Sep 2015 | Dissolved | |
| The Music Incubator Limited Director • Unreported | 16 Jan 2014←12 Years→Current | Active | |
Mark Stephenson Consultancy Limited Director • Director | 8 Jan 2014←1 Year→9 Jan 2015 | Dissolved | |
| Sound Forms Limited Director • Unreported | 3 Jul 2009←16 Years→Current | Active | |
| Awards For Young Musicians Director • Musician | 13 Dec 2005←1 Month→8 Feb 2006 | Active | |
