| Company | Timeline | Status | |
| St Fergus Energy Limited Director • Engineer | 31 Oct 2022←3 Years→Current | Active | |
| Zephyrus Green Energy Ltd Director • Company Director | 21 May 2021←4 Years→Current | Active | |
| Welton Of Creuchies Generating Company Limited Director • Engineer | 12 Jun 2017←8 Years→Current | Active | |
| Green Cat Contracting Limited Director • Engineer | 17 Jan 2013←12 Years→Current | Active | |
| Prelec Limited Director • Engineer | 8 Sep 2011←13 Years→22 Oct 2024 | Dissolved | |
| Green Cat Renewable Developments Limited Director • Engineer | 23 Sep 2010←15 Years→Current | Active | |
| House O' Hill Wind Energy Limited Director • Engineer | 9 Feb 2009←16 Years→Current | Active | |
| Green Cat Renewables Limited Director • Engineer | 7 Dec 2004←21 Years→Current | Active | |
