| Company | Timeline | Status | |
| R & W M Hill (Holdings) Limited Director • Company Director | 8 Jul 2011←3 Years→15 Jul 2014 | Active | |
| Robert Hill & Company (Electrical Engineers) Limited Director • Director | 1 Apr 1990←2 Years 10 Months→25 Jan 1993 | Active | |
Robert Hill & Co (Hoover Services) Limited Director • Company Director | 5 Dec 1988←4 Years→25 Jan 1993 | Dissolved | |
