| Company | Timeline | Status | |
| Grundon Waste Management Limited Director • Technical Director | 1 Jan 2021←4 Years→Current | Active | |
| S. Grundon (Services) Limited Director • Technical Director | 1 Jan 2021←4 Years→Current | Active | |
| S. Grundon (Waste) Limited Director • Technical Director | 1 Jan 2021←4 Years→Current | Active | |
| Grundon Sand & Gravel Limited Director • Technical Director | 1 Jan 2021←4 Years→Current | Active | |
