| Company | Timeline | Status | |
| Glassworks Equipment Limited Director • Engineer | 16 Jan 1992←33 Years→Current | Active | |
| Glassworks Hounsell Limited Director • Engineer | 16 Jan 1992←33 Years→Current | Active | |
| Metrogrand Limited Director • Engineer | 22 Oct 1991←34 Years→Current | Active | |
| Metrogrand Limited Director • Engineer | 22 Oct 1991←33 Years→14 Jul 2025 | Active | |
| Glassworks Equipment Limited Director • Engineer | 1 Jan 1970←55 Years→14 Jul 2025 | Active | |
| Glassworks Hounsell Limited Director • Engineer | 1 Jan 1970←55 Years→14 Jul 2025 | Active | |
