| Company | Timeline | Status | |
| 24a St James's Street Management Company Limited Director • Architect | 23 Nov 2011←4 Years→22 Feb 2016 | Active | |
| Pipers Gate Management Limited Secretary • Unreported | 28 Oct 2008←1 Year→15 Nov 2009 | Dissolved | |
| Woodlands Cottages Management Limited Secretary • Unreported | 4 Aug 2008←1 Year 12 Months→2 Aug 2010 | Active | |
| JCS Enterprises Ltd Director • Architect | 9 May 2007←8 Years→22 Feb 2016 | Dissolved | |
| Cubitt Homes Developments Ltd Director • Architect | 15 Sep 2005←4 Years→15 Oct 2009 | Active | |
| James Cubitt & Partners Holding Limited Director • Architect | 30 Sep 1991←23 Years→21 May 2015 | Active | |
| James Cubitt & Partners Limited Director • Architect | 30 Sep 1991←23 Years→21 May 2015 | Active | |
