| Company | Timeline | Status | |
| CLTHD Ltd Director • Costume Designer | 26 Jan 2023←2 Years 9 Months→Current | Active | |
| S J Coulthard Ltd Director • Director | 28 Aug 2019←5 Years→28 Jan 2025 | Dissolved | |
Susie Coulthard Ltd Director • Costume Designer | 20 Jun 2016←3 Years→20 Aug 2019 | Dissolved | |
