| Company | Timeline | Status | |
| Gravelle Family Limited Director • Director | 5 Apr 2011←14 Years→Current | Active | |
| Gravelle Plant Limited Secretary • Unreported | 14 Mar 2004←21 Years→Current | Active | |
| Gravelle Plant Limited Director • Housewife | 31 Dec 1991←34 Years→Current | Active | |
| Gravelle Plant Limited Director • Unreported | 1 Jan 1970←56 Years→Current | Active | |
