| Company | Timeline | Status | |
| The Dunoon Burgh Hall Trust Director • Unreported | 19 May 2010←3 Years→18 Apr 2014 | Active | |
| John Brown (Strone) Contractors Limited Director • Contracts Manager | 17 Jan 2001←23 Years→31 Aug 2024 | Active | |
| John Brown (Strone) Holdings Limited Director • Contracts Manager | 1 Apr 2000←24 Years→31 Aug 2024 | Active | |
| John Brown (Strone) Limited Director • Contracts Manager | 1 Apr 1995←29 Years→31 Aug 2024 | Active | |
