| Company | Timeline | Status | |
| Field-Marshall Tractors Limited Director • Company Director | 1 Feb 2021←4 Years→Current | Active | |
| Robert H. Crawford & Son Director • Director | 1 Feb 2021←4 Years→Current | Active | |
| Robert H. Crawford & Son Director • Director | 1 Jan 2006←15 Years→1 Feb 2021 | Active | |
| R H C Hire Limited Director • Managing Director | 15 Oct 2003←22 Years→Current | Active | |
| Field-Marshall Tractors Limited Director • Company Director | 12 Aug 2000←20 Years→1 Feb 2021 | Active | |
