| Company | Timeline | Status | |
| Catherine Gratwicke Photography Ltd Director • Director | 31 Oct 2019←5 Years→Current | Active | |
| Quadratic Consulting Ltd Director • Director | 6 May 2015←5 Years→22 Apr 2021 | Dissolved | |
Consulting Cubed Ltd Director • Director | 13 Oct 2011←5 Years→21 Oct 2016 | Dissolved | |
| Catherine Gratwicke Photography Ltd Secretary • Unreported | 2 Dec 2003←21 Years→Current | Active | |
