| Company | Timeline | Status | |
Crummock Allsports Limited Director • Director | 17 Sep 2013←3 Years→27 Sep 2016 | Dissolved | |
| Crummock Surfacing Ltd Director • Director | 10 Apr 2013←5 Years→29 Jun 2018 | Active | |
| Civil Engineering Contractors Association (Scotland) Director • Director | 24 Feb 2004←5 Years→26 Feb 2009 | Active | |
| Crummock Limited Director • Chartered Surveyor | 1 May 1999←17 Years→30 Jun 2016 | Liquidation | |
| Crummock Holdings Limited Director • Chartered Surveyor | 1 May 1999←17 Years→30 Jun 2016 | Liquidation | |
| Crummock (Scotland) Limited Director • Chartered Surveyor | 1 May 1999←17 Years→30 Jun 2016 | Liquidation | |
