Founded in 1810, Collen is an 8th-generation, family-owned construction business with a reputation for building quality and excellence.
The company, headquartered in Dublin, has successfully tendered and negotiated projects for a range of clients, including large multinational corporations, private companies, and local and state authorities.
Currently ranked in the top three building contractors in Ireland and with operations in the UK and Europe, Collen’s revenues are forecast at over €1.5bn, and the business has established a reputation for providing complex projects on time and within budget.
Mark McGreevy’s appointment marks the next step in the Group’s evolution, reinforcing the company’s strategic focus on sustainable growth, people-centric leadership and long-term value creation.
McGreevy has served on the Collen Board since 2024 as a Non-Executive Director and brings over 30 years of multi-sectoral industry experience to the role, having worked both in Ireland and internationally at Executive level with the Sisk Group. He was also a key figure in the strategic growth of the specialist construction services businesses Vision Built and Sensori, and comes with a deep appreciation of the values and long-term stewardship that underpin Collen’s enduring success.
“We are delighted to welcome Mark as Chief Executive Officer,” said Neil Collen, Chair of the Board. “His industry expertise, strong alignment with our family values, and a deep understanding of Collen’s ambitions make him well positioned to lead Collen into its next chapter. Mark will play a central role in driving our long-term success, not just in Ireland but across Europe.”
Speaking on his appointment, Mark McGreevy said, “It is a privilege to take on this role. I look forward to working with our talented teams and shareholders to build on the strong foundations in place and to support Collen’s continued growth, innovation and service excellence.”
Mark McGreevy will take up his new role on 5 January 2026.
Follow Irish building magazine on LinkedIn for the latest news and updates
