| Company | Timeline | Status | |
| Hauck Developments Limited Director • Engineer | 31 Jan 1992←18 Years→27 Feb 2010 | Active | |
| F. & J. Hauck Limited Director • Engineer | 31 Jan 1992←18 Years→27 Feb 2010 | Liquidation | |
| F. & J. Hauck Limited Director • Unreported | 1 Jan 1970←40 Years→27 Feb 2010 | Liquidation | |
