| Company | Timeline | Status | |
| Howard Co (2023) Limited Director • Unreported | 8 May 2023←2 Years 6 Months→Current | Active | |
| Milla Maddern LLP Designated LLP Member • Unreported | 6 Jun 2014←11 Years→Current | Active | |
| Jane Maddern Cosmetic Containers Limited Director • Unreported | 5 Dec 2013←11 Years→Current | Active | |
