| Company | Timeline | Status | |
| D. T. Time Limited Director • Director | 23 Nov 2000←9 Months→14 Sep 2001 | Active | |
| APT Limited Director • Director | 27 Sep 1992←10 Years→21 Nov 2002 | Active | |
| Peter Schonthal Agencies Limited Director • Director | 29 Jun 1992←22 Years→10 Dec 2014 | Active | |
| Electro-Replacement Limited Director • Director | 1 Jan 1970←31 Years→31 Mar 2001 | Active | |
