| Company | Timeline | Status | |
| Sheehans Limited Secretary • Company Secretary | 17 Oct 2005←20 Years→Current | Active | |
| Sheehan Haulage & Plant Hire Limited Secretary • Unreported | 14 Apr 1993←32 Years→Current | Active | |
| John Sheehan (Oxford) Limited Secretary • Unreported | 14 Apr 1992←33 Years→Current | Active | |
