| Company | Timeline | Status | |
PHC Cambridge Limited Director • Civil Engineer | 28 Jan 2014←3 Years→4 Jul 2017 | Dissolved | |
P Hall Consulting Ltd Director • Civil Engineering | 4 Aug 2009←4 Years→4 Mar 2014 | Dissolved | |
| K.P.H. Environmental Services Ltd Director • Civil Engineer | 5 Feb 2001←1 Year 5 Months→17 Jul 2002 | Active | |
| K.P.H. Environmental Services Ltd Secretary • Civil Engineer | 5 Feb 2001←1 Year 5 Months→17 Jul 2002 | Active | |
