| Company | Timeline | Status | |
| Grundy Aggregates Limited Director • Unreported | 25 Nov 2011←13 Years→Current | Active | |
| R&K Properties Limited Director • Director | 21 Jun 2011←10 Years→12 Jul 2021 | Active | |
| GSH Waste Recycling Ltd Secretary • Director | 23 Jul 2007←18 Years→Current | Active | |
| GSH Waste Recycling Ltd Director • Unreported | 23 Jul 2007←18 Years→Current | Active | |
| Grundy Demolition Limited Director • Unreported | 1 Jul 2004←21 Years→Current | Active | |
| Grundy & Co. Excavations Limited Director • Unreported | 1 Jan 1970←55 Years→Current | Active | |
