| Company | Timeline | Status | |
Willis Renewable Energy Systems Limited Director • Engineer  | 11 Mar 2008←11 Years→11 Feb 2020  | Dissolved  | |
Willis Renewable Energy Systems Limited Secretary • Unreported  | 11 Mar 2008←11 Years→11 Feb 2020  | Dissolved  | |
| Willis Heating And Plumbing Co Ltd Director • Engineer  | 18 Jan 1990←23 Years→31 Dec 2013  | Active  | |
| William Willis & Co Limited Director • Unreported  | 1 Jan 1970←55 Years→Current  | Active  | |
