BAM Contractors (formerly Ascon Contractors) is a wholly owned subsidiary of Royal BAM Group of the Netherlands. BAM Contractors covers the entire spectrum of construction in Ireland.

Its subsidiary operating companies are:

Together, these operating companies rank in the top 5 of major Irish construction companies. BAM Building has its own Small Works & Maintenance Division.

Builders Sisk Contractors


John Sisk & Son is an international construction company with a turnover of more than €1bn. Headquartered in Ireland, they have domestic operations in Ireland, Northern Ireland, England, Wales and Scotland and international operations in Europe and the United Arab Emirates. They have over 150 years of experience and remain a family run business in its fifth generation.


JJ Rhatigan & Company is one of Ireland’s leading construction companies, with offices in Galway, Dublin, Sligo and London. Over the past sixty years, as a premier contractor, the company has successfully progressed into a number of diverse sectors.

These include the construction of Commercial & Retail, Hotel/Leisure, Education, Industrial, Residential, Healthcare, Pharmaceutical, Fit-Out, Heritage, Municipal, Local Authority and Town Centres.

JJ Rhatigan & Co. set standards in the speed and quality of their construction. This is consistent with their philosophy to complete contracts on or ahead of programme, within budget and to the highest standard. Customer satisfaction is reflected in the huge percentage of repeat business undertaken by the company.


Since 1979 Cosgraves have built many of the most exceptional living environments in Dublin and surrounding areas. Guided by a deep-rooted appreciation for the long term value of elegance, quality and high standards, Cosgraves have earned an undisputed reputation for excellence and the term “Cosgrave Built’ is perhaps the greatest assurance of pedigree when it comes to your home. Cosgraves have gained the wealth of experience over 30 years as a premier builder.

B & C Building Contractors LTD

B&C Contractors is a medium sized building and development company. B&C have a successfully completed a wide variety of construction and civil projects and have been in business for 39 years this year. Their role as main contractor on many of their projects enables them to see the full picture and meet the current trends and challenges in the Irish construction market such as ‘greener’ buildings, industry downturn and tight programme with genuine experience with tried and tested solutions. The environmental expertise of their construction team is especially critical.

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