| Company | Timeline | Status | |
| Chapmanbdsp Holdings Limited Director • Consulting Engineer | 3 Dec 2012←12 Years→Current | Active | |
| Chapmanbdsp Limited Director • Consulting Engineer | 3 Dec 2012←12 Years→Current | Active | |
| BDSP Partnership Limited Director • Consulting Engineer | 3 Feb 2000←25 Years→Current | Active | |
| BDSP Partnership Limited Secretary • Consulting Engineer | 3 Feb 2000←25 Years→Current | Active | |
