| Company | Timeline | Status | |
| GDS Group Limited Director • Director | 1 Jul 2010←5 Years→1 Jun 2016 | Active | |
| GDS Group Limited Director • Chartered Accountant | 5 Apr 2001←8 Years→26 Jan 2010 | Active | |
| Jewish Literary Trust Limited Director • Company Director | 16 May 1996←14 Years→21 Jul 2010 | Active | |
| GDS Technology Limited Director • Director | 26 Apr 1993←16 Years→26 Jan 2010 | Dissolved | |
| Jewish Literary Foundation Director • Chartered Accountant | 5 Jul 1992←13 Years→14 Dec 2005 | Active | |
| Steinberger Developments Limited Director • Chartered Accountant | 31 Jul 1991←34 Years→29 Aug 2025 | Dissolved | |
