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Trusted Construction & Engineering Solutions
Established with a legacy of innovation and excellence, we are a leading construction and engineering firm dedicated to delivering transformative projects across Ireland, the UK, and Europe. Our expertise spans diverse sectors including data centres, healthcare, residential, commercial, and infrastructure, where we combine pioneering construction methods with a steadfast commitment to sustainability. With over four decades of experience, we have cultivated a reputation for tackling complex challenges through strategic planning, digital project delivery, and sustainable design.

Our internal design consultancy prioritises risk mitigation and value creation, ensuring projects meet the highest standards of quality and efficiency. As a family-owned business, we uphold core values of care, integrity, and excellence, fostering long-term relationships with clients, communities, and partners. From iconic landmark buildings to net-zero developments, we build spaces that endure for future generations. Our recent achievements include a 62% increase in pre-tax profits and a 43% rise in turnover, reflecting our industry leadership and operational excellence.
Services
Data Centres Commercial Construction Healthcare Projects Infrastructure Development Sustainable Building Digital Project Delivery Engineering Services Strategic Projects Retrofitting Residential Development
Highlights and features
  • We have over 40 years of experience in complex construction projects.
  • Our team integrates digital project delivery and sustainable design.
  • We operate across diverse sectors including data centres and healthcare.
  • We achieved a 62% increase in pre-tax profits in 2024.
  • Our values prioritise safety, sustainability, and community impact.
Services
Data Centres
We design and construct high-specification data centres with a focus on sustainability and cutting-edge technology. Our projects, such as the Vantage Data Centres DUB1 Campus, incorporate green building standards to ensure energy efficiency and scalability. By leveraging digital project delivery, we streamline construction processes to meet the evolving demands of global clients in the technology sector.
Commercial Construction
Our commercial projects, including landmark developments like Two-Four Wilton Park in Dublin, blend innovative design with functional excellence. We create modern workspaces that enhance productivity and urban aesthetics, adhering to strict sustainability targets. Our approach integrates client vision with practical execution, ensuring spaces that meet current and future business needs.
Healthcare Projects
We deliver specialised healthcare infrastructure, including hospitals and medical research facilities, with precision and compliance. Our expertise ensures environments that prioritise patient care, operational efficiency, and regulatory standards. Projects like the MSD Haarlem vaccine facility demonstrate our capability to manage complex, high-stakes developments from concept to commissioning.
Sustainable Building
Sustainability is central to our operations, from material optimisation to net-zero targets. We implement eco-friendly practices across projects, such as the zero-carbon Bonham Quay development in Galway. Our commitment to environmental stewardship aligns with global standards, reducing carbon footprints while maintaining structural integrity and long-term value.
Digital Project Delivery
We utilise advanced digital tools to enhance project planning, execution, and handover. This approach improves collaboration, reduces risks, and ensures precise outcomes. By digitising workflows, we deliver projects more efficiently, as seen in our strategic partnerships and innovative use of BIM (Building Information Modelling) technology.
People
Paul Brown
CEO
Paul Brown leads John Sisk & Son with a vision to pioneer sustainable construction methods. With decades of industry experience, he drives innovation and operational excellence, overseeing landmark projects across global markets.
Questions
What sectors does John Sisk & Son specialise in?
We specialise in data centres, healthcare, infrastructure, commercial, residential, and education projects across Ireland, the UK, and Europe.
How does John Sisk & Son prioritise sustainability?
We integrate sustainable practices in material usage, energy efficiency, and project lifecycle management, aligning with global environmental standards and net-zero targets.
What is Digital Project Delivery?
Our Digital Project Delivery uses advanced technology to streamline construction processes, enhancing collaboration and precision from design to completion.
Can John Sisk & Son handle international projects?
Yes, we operate across Europe, delivering complex projects like the Copenhagen Data Centre and MSD Haarlem facility in the Netherlands.
How does John Sisk & Son support client needs?
We offer tailored solutions through strategic planning, risk mitigation, and a client-centric approach, ensuring projects meet specific requirements and exceed expectations.
What career opportunities are available at John Sisk & Son?
We offer roles in construction, engineering, sustainability, and digital innovation, with apprenticeships and professional development programs in Ireland and the UK.