| Company | Timeline | Status | |
| Barter Hill Consulting Limited Director • Structural Engineer | 29 Oct 2020←5 Years→Current | Active | |
| TW (Southwold) Freehold Limited Director • Director | 26 Feb 2013←12 Years→Current | Active | |
| BHPP Limited Director • Engineer | 1 Jan 2006←19 Years→Current | Active | |
| Barter Hill Partnership Limited Director • Structural Engineer | 3 Apr 2003←22 Years→Current | Active | |
