| Company | Timeline | Status | |
| Alphamates Limited Director • Director | 14 Feb 1992←8 Years→24 May 2000 | Active | |
| Castle Microwave Limited Director • Director | 14 Feb 1992←8 Years→25 May 2000 | Active | |
| Andrew Wireless Systems UK Limited Director • Director | 14 Feb 1991←3 Years→1 Feb 1995 | Active | |
| Castle Microwave Systems Limited Director • Director | 14 Feb 1991←9 Years→24 May 2000 | Active | |
