| Company | Timeline | Status | |
| M.B.A. Literary Agents Limited Director • Literary Agent | 1 Oct 1992←33 Years→Current | Active | |
| M.B.A. Literary Agents Limited Secretary • Unreported | 18 Mar 1992←33 Years→Current | Active | |
| Greene & Heaton Limited Director • Literary Agent | 1 Jan 1970←27 Years→6 Feb 1997 | Active | |
| Greene & Heaton Limited Secretary • Unreported | 1 Jan 1970←27 Years→6 Feb 1997 | Active | |
