| Bam Civil & Engineering Contractors | www.bamcontractors.ie |
| John Sisk & Son Ltd | www.sisk.ie |
| Siac Construction | www.siac.ie |
| Coffey Construction Ltd | www.coffeyconstruction.com |
| Roadbridge Ltd | www.roadbridge.ie |
| Sierra Communications Ltd | www.sierra.ie |
| Glenman Corporation Ltd | www.glenman.ie |
| Murphy International Ltd | www.murphygroup.ie |
| Clonmel Enterprises | www.clonmelent.com |
| Irish Rail | www.irishrail.ie |
| P. J. McLoughlin & Sons Ltd | www.pjmcloughlin.ie |
| Duggan Brothers Ltd | www.dugganbrothers.ie |
| Collen Construction Ltd | www.collen.com |
| P. J. Hegarty & Sons | www.pjhegarty.ie |
| JSL Group Ltd | www.stewart.ie |
| Bennett Construction | www.bennettconstruction.com/ |