| Company | Timeline | Status | |
| Grossmith Limited Director • Company Director | 23 Feb 2009←16 Years→Current | Active | |
| J. Grossmith & Son Limited Director • Company Director | 6 Aug 2007←18 Years→Current | Active | |
| J. Grossmith & Son Limited Secretary • Company Director | 6 Aug 2007←18 Years→Current | Active | |
| Grossmith Supply Company Limited Secretary • Company Director | 1 Nov 2006←19 Years→Current | Active | |
| Grossmith Supply Company Limited Director • Company Director | 1 Nov 2006←19 Years→Current | Active | |
