| Company | Timeline | Status | |
| Calderwood Developments (Harworth) Limited Director • Director | 1 Oct 2019←6 Years→Current | Active | |
| Calderwood Developments (Gainsborough) Limited Director • Surveyor | 28 Jun 2019←6 Years→Current | Active | |
| South Kirkby Developments Limited Director • Surveyor | 28 Jun 2019←5 Years→13 Aug 2024 | Dissolved | |
| Calderwood Property Investments (3) Limited Director • Surveyor | 27 Sep 2011←14 Years→Current | Active | |
