| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Officer | A P WILLIAMSON CONSULTANTS LTD | — | Active | 22/05/2026 – present |
| Officer | THE INSTITUTE OF ROOFING | 🇬🇧United Kingdom | Active | 11/03/2026 – 01/09/2010 |
06/09/2011
appointed
01/09/2010
resigned
17/10/2007
appointed