| Company | Timeline | Status | |
| Yorkshire Stone Traders Ltd Director • Director | 5 Jan 2017←4 Years→21 Dec 2021 | Dissolved | |
| Walker Investments (UK) Limited Director • Director | 21 Feb 2006←19 Years→Current | Active | |
| Walker Group (Yorkshire) Limited Director • Director | 21 Feb 2006←10 Years→23 Dec 2016 | Active | |
| Walker Builders Limited Director • Director | 15 Mar 1999←17 Years→23 Dec 2016 | Active | |
