- APC Contractors, Clonmel, Co. Tipperary.
- ESB Power Stations--Moneypoint, Poolbeg, Aghada, Lanesborough, Tarbert etc.
- Dawn Meats Ballyhaunis, Co. Mayo.
- Quinn Quarries ltd. Williamstown, Co. Galway.
- Quinn Cement ltd. Ballyconnel, Co. Cavan.
- Quinn Quarries, Derrylin, Co. Fermanagh.
- Fennelon Engineering,Longford.
- Foynes Engineering. foynes, co. Limerick.
- McGrath quarries, Cong, Co. Mayo.
- Banagher Concrete, Banagher, Co. Offaly.
- Roadstone (CRH).
- Coleman Tunneling, Milton Kynes. UK.
- Unilokomotive ltd. Dunmore Road, Tuam, Galway.
- CMC Quarries, Tuam, Co. Galway.
- Turmec ltd. Navan, Co. Meath.
- Tara Mines, Navan, Co. Meath.
- Mercury Engineering, Sandyford Ind. estate, Dublin.
- MEC. Clonmel, Co. Tipperary.
- McHale Engineering. Ballinrobe, Co. Mayo.
- Konecranes(UK) ltd. East kilbride, Scotland.
- JFC ltd. Weir Road, Tuam, Co. Galway.
- General electric International inc. Budapest, Hungary.
- Fluid Control Systems ltd. Killybegs, Co. Donegal.
- Mitsui Babcock Energy ltd. Tipton, West Midlands. UK.
- Murray timber Products ltd. Ballygar, Co. Galway.
- R&R Mechanical , Tullamore, Co. offaly.
- Ward and Burke Construction, Kilclgan, co. Galway.
- Sicim Ireland ltd. Dunleer, Co. Louth.
- Roadstone (CRH) , Saggart, co. Dublin.
