Kelly & O'Callaghan Quantity Surveyors

Kelly and O'Callaghan Quantity Surveyors

Founded in 1999 by Mark Kelly and Sean O’Callaghan, KOC are celebrating 25 years in business; two decades of supporting our clients in all areas of cost and project management.

KOC offers a full range of services including cost management, project management and funder advisory services. Our team primarily operates out of the main headquarters in Dublin while also maintaining satellite offices in Cork, Carrick-on-Shannon, Berlin and London. KOC has an excellent reputation supporting local and international clients across all sectors in Ireland, the UK and mainland Europe.


The Hive,
Co. Leitrim.

Open positions