| Company | Timeline | Status | |
| Applied Waste Techniques Limited Director • Unreported | 15 Nov 2013←11 Years→Current | Active | |
| Filkin & Co. Ehs Limited Director • Unreported | 29 Nov 2012←12 Years→Current | Active | |
Percival Filkin Ehs Ltd Director • Environmental Consultant | 21 Apr 2011←2 Years 12 Months→15 Apr 2014 | Dissolved | |
| RBT Solutions Limited Liability Partnership Designated LLP Member • Unreported | 1 Apr 2008←4 Years→1 Apr 2012 | Dissolved | |
