| Company | Timeline | Status | |
| Preston Pools Limited Secretary • Unreported | 13 Aug 2009←7 Years→31 Jul 2017 | Active | |
| Pte Limited Secretary • Unreported | 12 Aug 2009←5 Years→31 Aug 2014 | Liquidation | |
| John Preston Pool & Spa Services Limited Secretary • General Manager | 28 Feb 2003←14 Years→31 Jul 2017 | Dissolved | |
