| Company | Timeline | Status | |
| National Housing Fund Limited Director • Housing Association Consultant | 6 Nov 2017←3 Years→19 Jan 2021 | Dissolved | |
| Pca (St Albans) Limited Director • Housing Association Consultant | 10 Mar 2016←9 Years→Current | Active | |
| Callan Residential Properties Limited Director • Company Director | 19 Oct 2012←13 Years→Current | Active | |
| Philip Callan Associates Limited Director • Management Consultant | 22 Feb 2012←13 Years→Current | Active | |
| Renewable Clean Energy 2 Limited Director • Director | 13 Jun 2011←9 Months→23 Mar 2012 | Dissolved | |
| Wellington Holdings Limited Director • Company Director | 8 Apr 2008←3 Years→23 Mar 2012 | Dissolved | |
| Savills Telecom Limited Director • Company Drector | 8 Apr 2008←3 Years→3 May 2011 | Active | |
| Libra Housing Advisory Services Limited Director • Management Consultant | 31 Mar 2004←7 Years→23 Mar 2012 | Dissolved | |
| Pca Holdings Limited Director • Management Consultant | 1 May 2003←8 Years→23 Mar 2012 | Dissolved | |
| Pca Management Consultants Limited Director • Management Consultant | 24 Dec 1996←15 Years→23 Mar 2012 | Dissolved | |
