| Company | Timeline | Status | |
| Kirby Property Group Ltd Director • Director | 30 Apr 2025←5 Months→Current | Active | |
| Kirby Lettings Ltd Director • Company Director | 30 Jan 2018←9 Months→29 Oct 2018 | Active | |
| Stainby Reclamation Ltd Director • Company Director | 22 Apr 2016←8 Years→14 Jan 2025 | Dissolved | |
| A & L Kirby Property Ltd Director • Company Director | 8 May 2015←10 Years→Current | Active | |
| Stainby Reclamation Ltd Director • Director | 1 May 2008←6 Months→1 Nov 2008 | Dissolved | |
| Construction & Environmental Services Limited Director • Company Director | 1 Oct 2006←19 Years→Current | Active | |
