| Company | Timeline | Status | |
| Redmaze Limited Director • Marketing Director | 27 Aug 2015←10 Years→Current | Active | |
| Portman Promotions (Enterprises) Limited Director • Marketing Director | 27 Aug 2015←10 Years→Current | Active | |
| Stern Trustees Limited Director • Marketing Director | 1 Sep 2006←17 Years→4 Jun 2024 | Dissolved | |
| Portman Promotions (Enterprises) Limited Director • Publishing | 22 Apr 2004←1 Year 2 Months→30 Jun 2005 | Active | |
| The Portman Consultancy (Marketing) Limited Director • Publishing | 7 Sep 2000←25 Years→Current | Active | |
