| Company | Timeline | Status | |
| Hilcon Electrical Control Engineers Limited Director • Electrical Engineer | 7 Jan 1989←36 Years→Current | Liquidation | |
| Hilcon Electrical Control Engineers Limited Secretary • Unreported | 7 Jan 1989←36 Years→Current | Liquidation | |
| R & W M Hill (Holdings) Limited Secretary • Unreported | 31 Dec 1988←22 Years→8 Jul 2011 | Active | |
| Robert Hill & Company (Electrical Engineers) Limited Secretary • Unreported | 31 Dec 1988←22 Years→8 Jul 2011 | Active | |
| R & W M Hill (Holdings) Limited Director • Electrical Engineer | 31 Dec 1988←22 Years→8 Jul 2011 | Active | |
| Robert Hill & Company (Electrical Engineers) Limited Director • Electrical Engineer | 31 Dec 1988←22 Years→8 Jul 2011 | Active | |
Robert Hill & Co (Hoover Services) Limited Director • Electrical Engineer | 5 Dec 1988←22 Years→8 Jul 2011 | Dissolved | |
Robert Hill & Co (Hoover Services) Limited Secretary • Unreported | 5 Dec 1988←22 Years→8 Jul 2011 | Dissolved | |
