| Company | Timeline | Status | |
| Matt Chamberlain Associates Limited Director • Consultant Engineer | 12 Mar 2018←7 Years→Current | Active | |
| Easst Expertise Limited Director • Road Safety Consultant | 2 Feb 2018←1 Year 7 Months→24 Sep 2019 | Active | |
Rsa Road Safety Consultants Limited Director • Road Safety Consultant | 28 Aug 2012←3 Years→15 Dec 2015 | Dissolved | |
