| Company | Timeline | Status | |
| Controlled Temperature Systems Ltd Director • Engineering Consultant | 9 Oct 2018←7 Years→Current | Active | |
| R. T. Refrigeration And Air Conditioning Limited Director • Technical Sales Director | 1 Mar 2004←5 Years→14 Jul 2009 | Active | |
| Kirwin Air Conditioning Limited Director • Company Director | 27 Apr 2000←4 Years→4 Mar 2005 | Active | |
| CTS Technical Services Limited Secretary • Unreported | 25 May 1995←30 Years→Current | Liquidation | |
| CTS Technical Services Limited Director • Company Director | 31 Oct 1994←31 Years→Current | Liquidation | |
| Penmann Climatic Systems Ltd Director • Director | 18 Mar 1991←3 Months→30 Jun 1991 | Active | |
