| Company | Timeline | Status | |
| S. & T. Paint Rollers Limited Director • Engineer | 1 May 2019←6 Years→Current | Active | |
| W. J. Clow (Midlands) Limited Director • Engineer | 1 May 2019←6 Years→Current | Active | |
| W.J. Clow & Company (Ireland) Limited Director • Engineer | 1 May 2019←6 Years→Current | Active | |
| Quarryknowe Fabricators Limited Director • Engineer | 1 May 2019←6 Years→Current | Active | |
| McLean, Buchanan & Company Limited Director • Engineer | 1 May 2019←6 Years→Current | Active | |
| F.A.Heffer & Co.Limited Director • Engineer | 1 May 2019←6 Years→Current | Active | |
| The Ladder Association Limited Director • Company Director | 6 Nov 2009←6 Years→20 May 2016 | Active | |
| U.K. Ladder And Safety Training Co. Ltd Director • Manager | 5 May 2005←15 Years→20 Apr 2021 | Dissolved | |
| Clow Group Ltd Director • Commerce Manager | 27 Feb 1997←28 Years→Current | Active | |
| W.J. Clow & Company Limited Director • Commercial Manager | 6 Sep 1996←29 Years→Current | Active | |
