Thursday 15th February 2024: Sisk has announced the appointment of John Hennessey as Regional Director in its Data Centre division. John has nearly 40 years of experience delivering complex projects in Ireland, the UK and Europe and he has been in executive and senior leadership roles for more than 30 years.

Mr Hennessey joins Sisk from STACK Infrastructure where he served as Construction Director EMEA with responsibility for the delivery of its data centre projects across Europe – Norway, Sweden, Denmark, Germany, Switzerland and Italy.

Owen Sisk, Managing Director, Data Centres, Sisk said: “We are pleased to welcome John to our team as we look to expand our data centre delivery and meet the needs of our clients across Ireland, UK and Europe. John brings a wealth of experience across all geographies in the Data Centre sector and his appointment is timely given that we are seeing substantial growth with a strong pipeline of projects.”

John Hennessey, Regional Director, Data Centres, Sisk said: “I am delighted to join Sisk as Regional Director, Data Centres. Having worked closely with Sisk in the past, the business has a really strong capability and expertise, and I can see great opportunities for Sisk to develop further in the Data Centres sector across Ireland, UK and Europe. I’m really looking forward to helping the team and I’ll be continuing to help build trusted relationships with our clients.”

About Sisk

Sisk is an innovative, international, construction and engineering business with a long-term vision. Sisk employs over 2,500 people and is Ireland's leading provider of construction services with extensive operations across Ireland, the United Kingdom and mainland Europe with the track record, scale and capacity to successfully undertake large, complex multidisciplinary programmes. Sisk is recognised by global clients as a world leader in safe delivery.

Sisk delivers projects in sectors such as Data and Technology, Semiconductors, Pharmaceutical and Life Sciences, Infrastructure, Transportation, Healthcare, Commercial, Residential, Retail, Industrial, Leisure, Education and Energy.

Sisk offers a life-cycle approach to construction from planning and offsite construction, through delivering and fitting out a project safely and sustainably with technology as a key enabler, and then working with clients to help manage and maintain buildings efficiently throughout their lifespan.

Our purpose is to create places for future generations. We take inspiration from our founder John Sisk, who was driven by a keen sense of public service through the early projects that were delivered by the business - schools, libraries, churches etc. Throughout our history, we have created legacies within the communities where we work, instilled by our core values of Care, Integrity and Excellence.

We have been in existence for over 165 years and we want to continue to have a positive impact on future generations to come.

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For further information contact:

Barry Ryan,

Senior External Communications Officer, Sisk


Tel: 00 353 87 380 0578