| Company | Timeline | Status | |
| The British Society Of Audiology Director • Audiologist/professorial Fellow | 5 Jun 2019←6 Years→22 Jul 2025 | Active | |
A & N Campbell Limited Director • Director | 31 Mar 2016←2 Years 3 Months→10 Jul 2018 | Dissolved | |
| The British Society Of Audiology Director • Associate Professor | 3 Sep 2015←1 Year 10 Months→30 Jun 2017 | Active | |
