| Company | Timeline | Status | |
| Petch Protection Solutions Limited Director • Security Alarm Engineer  | 1 Nov 2016←9 Years→Current  | Active  | |
Petch Environmental Solutions Ltd Director • Alarm Engineer  | 28 Mar 2013←5 Years→10 Jul 2018  | Dissolved  | |
| Crimewatch Safeguard Security Systems Ltd Director • Engineer  | 31 Mar 2003←5 Years→4 Sep 2008  | Active  | |
