| Company | Timeline | Status | |
| Stapleton Limited Secretary • University Librarian | 4 Feb 1994←31 Years→Current | Active | |
| Stapleton Limited Director • Retired | 4 Feb 1994←31 Years→Current | Active | |
| Stapleton Limited Secretary • University Librarian | 4 Feb 1994←31 Years→2 Oct 2025 | Active | |
