| Company | Timeline | Status | |
| DKJ Consulting Limited Director • Structural Engineer | 30 Sep 2025←4 Months→Current | Active | |
| SWF Consulting Ltd Director • Structural Engineer | 14 Nov 2008←3 Years→22 Feb 2012 | Active | |
| SWF Consultants Limited Director • Unreported | 11 Apr 2001←24 Years→Current | Active | |
