| Company | Timeline | Status | |
| Premier De-Icers Limited Director • Consultant | 11 Feb 2010←15 Years→16 Apr 2025 | Dissolved | |
| Lanoforte Limited Director • Director | 5 Jun 2007←18 Years→Current | Active | |
| Biomax Limited Director • Co Director | 18 Aug 2000←25 Years→Current | Active | |
| Oil Slick Dispersants Limited Secretary • Unreported | 6 Jul 1998←27 Years→Current | Active | |
Carmine Solutions Limited Secretary • Unreported | 6 Jul 1998←1 Day→7 Jul 1998 | Dissolved | |
| Oil Slick Dispersants Limited Director • Unreported | 10 Mar 1998←27 Years→Current | Active | |
Carmine Solutions Limited Director • Director | 17 Oct 1997←22 Years→28 Jan 2020 | Dissolved | |
| Maryhill Limited Director • Managing Director | 19 Jun 1993←32 Years→Current | Active | |
| Maryhill Limited Secretary • Unreported | 19 Jun 1993←4 Years→8 Sep 1997 | Active | |
| Kingston Chemicals (Yorkshire) Limited Director • Director | 24 Sep 1992←5 Years→26 Jan 1998 | Active | |
