| Company | Timeline | Status | |
| K.S.S. (Blackburn) Limited Director • Director | 6 Mar 2000←25 Years→Current | Active | |
| Kirk Properties Limited Director • Scaffolding Contractor | 7 May 1996←5 Years→10 May 2001 | Active | |
| K.S.S. (Scaffolding Sales) Limited Director • Scaffolding Contractor | 11 Dec 1992←33 Years→Current | Active | |
| Kirk Scaffolding Limited Director • Scaffolding Contractor | 25 Apr 1991←34 Years→Current | Active | |
