| Company | Timeline | Status | |
| Cowen Maintenance Limited Director • Director | 29 Sep 2014←11 Years→Current | Active | |
| The Sheila Cowen Trust Director • Managing Director | 24 May 2011←14 Years→15 Jul 2025 | Dissolved | |
| English Pen Director • Translator | 8 Dec 2008←4 Years→2 Dec 2013 | Active | |
Caring, Sharing & Company Limited Secretary • Translator | 8 Jun 2006←3 Years→18 Jun 2009 | Dissolved | |
Ros Schwartz Translations Limited Director • Translator | 10 Dec 2002←15 Years→17 Jul 2018 | Dissolved | |
