| Company | Timeline | Status | |
| Betts Hydro Limited Director • Civil Engineer | 30 Jun 2015←10 Years→Current | Active | |
| Betts Frimston Limited Director • Civil Engineer | 31 Mar 2010←15 Years→Current | Active | |
| Betts Geo Environmental Limited Director • Civil Engineer | 12 Jun 2007←2 Years 9 Months→1 Apr 2010 | Active | |
| Betts Associates Limited Director • Civil Engineer | 12 Apr 2005←20 Years→Current | Active | |
