| Company | Timeline | Status | |
| Bylor Services Limited Director • Quantity Surveyor | 22 Mar 2017←8 Years→Current | Active | |
Privica Ltd Director • Quantity Surveyor | 1 Jul 2016←8 Months→16 Mar 2017 | Dissolved | |
| O'Rourke Investments Holdings (UK) Limited Director • Quantity Surveyor | 1 Jul 2016←3 Years→20 Dec 2019 | Active | |
| Expanded Piling Limited Director • Chartered Surveyor | 21 May 2003←2 Years 11 Months→2 May 2006 | Active | |
| Laing O'Rourke Holdings Limited Director • Director | 28 Jun 2002←8 Years→19 Oct 2010 | Active | |
| Laing O'Rourke Construction South Limited Director • Quantity Surveyor | 1 Nov 2001←4 Years→1 Mar 2006 | Liquidation | |
| Moray House Limited Director • Managing Director | 1 Dec 1998←6 Years→18 Nov 2005 | Active | |
Malling Pre-Cast Limited Director • Qs | 23 Jan 1997←9 Years→2 May 2006 | Dissolved | |
| R.O'Rourke & Son Limited Director • Quantity Surveyor | 28 Sep 1994←7 Years→28 Mar 2002 | Active | |
| O'Rourke Civil Engineering Limited Director • Quantity Surveyor | 9 May 1994←8 Years→28 Jun 2002 | Active | |
