| Company | Timeline | Status | |
| St. Peter's & St. Paul's Marlborough Trust Limited Director • Architect | 15 Mar 2016←2 Years→20 Mar 2018 | Active | |
| Hugh Cullum Architects Limited Secretary • Unreported | 4 Sep 2000←25 Years→Current | Active | |
| Hugh Cullum Architects Limited Director • Architect | 4 Sep 2000←25 Years→Current | Active | |
| Briset House Limited Director • Architect | 31 Jan 2000←25 Years→Current | Active | |
