| Company | Timeline | Status | |
| Spaceflight Now Limited Director • Editor | 27 Apr 2005←20 Years→Current | Active | |
| Castleview Ii Freehold Company Limited Director • Publisher | 1 Aug 2003←22 Years→Current | Active | |
| Concept Graphics Limited Director • Publisher | 15 Aug 2001←3 Years→1 Aug 2005 | Active | |
| Pole Star Publications Limited Director • Publishing | 7 Nov 1994←31 Years→Current | Active | |
