Collen is an engineering-led construction company with a legacy of excellence and a forward-thinking approach that positions it at the forefront of the construction industry across Ireland, the United Kingdom, and Europe. The company delivers high-quality, innovative solutions across a diverse range of sectors, underpinned by deep technical expertise and a culture of collaboration, precision and reliability. With over 200 years of experience, Collen continues to grow as a dynamic, market-leading force in the construction industry. Its unique ability to combine engineering intelligence with project delivery excellence ensures the consistent delivery of complex and mission-critical projects. Headquartered in Dublin, Collen also operates offices in the United Kingdom, Finland, Denmark and Sweden.
Collen delivers projects across a diverse range of sectors including data centres, life sciences, public infrastructure, energy, commercial developments and workplace fit-outs. The company is recognised for its expertise in delivering complex, high-performance facilities that meet the highest standards of quality, safety and sustainability. From supporting digital infrastructure and the energy transition to developing healthcare, education and commercial environments, Collen combines technical excellence with innovative project delivery to create resilient, future-focused solutions for clients across Ireland, the United Kingdom, Finland, Denmark and Sweden.
