| Company | Timeline | Status | |
| Skate Buddies UK Cic Director • Consultant | 10 May 2024←1 Year 8 Months→Current | Active | |
| Edgbaston Reservoir Co Limited Director • Company Director | 8 Feb 2021←4 Years→Current | Active | |
| Misfits Music Ltd Director • Company Director | 6 Feb 2020←5 Years→Current | Active | |
| Bertz Associates Ltd Director • Director | 30 Jan 2020←5 Years→Current | Active | |
| Still Walking Cic Director • None | 2 Feb 2015←4 Years→31 Dec 2019 | Active | |
| Midland Actors Theatre Director • Self Employed | 27 Nov 2013←4 Years→22 Dec 2017 | Active | |
| Iris Bertz Limited Director • Artist | 19 Jan 2004←22 Years→Current | Active | |
