| Company | Timeline | Status | |
| RPS Us Holdings Limited Director • Landscape Architect | 31 Dec 1992←4 Years→24 Dec 1997 | Dissolved | |
| RPS Laboratories Limited Director • Landscape Architect | 31 Dec 1992←4 Years→24 Dec 1997 | Dissolved | |
| RPS Laboratories Limited Director • Unreported | 1 Jan 1970←27 Years→24 Dec 1997 | Dissolved | |
