| Company | Timeline | Status | |
| Willow Tree Lane Management Company Limited Director • Builder | 3 Mar 2016←4 Years→9 Sep 2020 | Active | |
| Culmore Land & Property Limited Director • Building Contractor | 29 Sep 2008←17 Years→Current | Active | |
| Chestnut Grove Estates Limited Director • Building Contractor | 18 Apr 2008←6 Years→27 May 2014 | Active | |
| Drumlerry Management Company Limited Director • Building Contractor | 25 May 2006←1 Year 4 Months→17 Oct 2007 | Active | |
| Peter O'Brien Homes Limited Director • Housebuilder | 27 Jun 2000←25 Years→Current | Active | |
