| Company | Timeline | Status | |
| Maxwell Oil Tools (North Sea) Limited Director • Director  | 22 Nov 2017←7 Years→Current  | Active  | |
| Maxwell Oil Tools (North Sea) Limited Director • Engineer  | 9 Sep 2014←1 Month→21 Oct 2014  | Active  | |
| Jas Hillhouse Properties Limited Director • Unreported  | 13 Jan 2012←13 Years→Current  | Active  | |
| L D Properties Limited Director • Engineer  | 8 Mar 2007←17 Years→18 Jun 2024  | Dissolved  | |
Advanced Composite Standoff Ltd Director • Engineer  | 21 Apr 2005←11 Years→27 Sep 2016  | Dissolved  | |
| John Hillhouse (Plant Hire) Limited Director • Engineer  | 8 Sep 2003←22 Years→Current  | Active  | |
| Protech Centreform International Limited Director • Engineer  | 1 Aug 2003←4 Years→5 Jun 2008  | Active  | |
