SISK Group is a 5th generation, 157 year old family business. Founded in Ireland in 1859, John Sisk & Son has grown from a small local builder to an international construction company, now diversified into consumer products and property, to create the SISK Group. Five generations later the enterprise remains a private family owned business, employing over 2,000 people with diverse business operations in Ireland, United Kingdom, Europe and the Middle East.