| Company | Timeline | Status | |
| John A. Sparks & Co. Limited Director • Unreported | 27 Jun 2016←9 Years→Current | Active | |
| Blairderry Properties Limited Director • Unreported | 18 Nov 2011←14 Years→Current | Active | |
| Blairderry Properties Limited Director • Unreported | 18 Nov 2011←13 Years→11 Nov 2025 | Active | |
| John A. Sparks & Co. Limited Director • Administrative Executive | 7 Feb 1991←25 Years→20 May 2016 | Active | |
