About us 

We provide exceptional levels of construction expertise.

Sisk is an innovative, international, construction and engineering company

With a 160 year history spanning three centuries, our family business has stayed true to John Sisk’s vision of providing exceptionally high levels of construction expertise and customer service by employing, training and motivating capable staff.


Delivering landmark projects

We operate across key sectors as an Irish family owned business, with offices in Dublin, Cork, Galway, Limerick, Sligo, Waterford and Portlaoise.

In 1984 we opened our first office in the UK. We have offices in St Albans, Birmingham, Warrington and Bristol serving these markets directly.

Sisk also has a number of key projects throughout Europe for major pharmaceutical, retail and technology clients. Current locations for Sisk projects include, Netherlands, Switzerland, Sweden and Denmark.

Protecting the welfare of future generations is reflected in our approach to sustainability


The Sisk sustainable approach

The sustainable development approach taken by Sisk is to maximise sustainable construction and minimise the environmental effect of a project on society. This approach is rooted in the recognition that active engagement in social progress, environmental protection, and economic balance is necessary for long term development.

We are investing significantly in energy efficiency to improve the way we do business. Electric Vehicles are one of a number of initiatives we are rolling out as part of that commitment. Our ambition is to make energy efficiency part of the business culture in Sisk and across the industry.

You can find out more about our approach to sustainability here.


Creating legacies in communities

We promote safety, welfare, training, non-discrimination and charity to support confidence and moral across a healthy diverse community.

Sisk is acutely aware of the impacts of construction projects on the local environment.

We engage with all stakeholders including the local community, clients, end-user groups, regulatory and professional bodies at an early stage as part of project design and throughout construction.

Our contribution to social progress ranges from our inclusive recruitment and career development opportunities, safety system, training and recruitment of apprentices, donations of time and finance to charitable causes, providing training to local schools, providing local employment & trade and supporting local community organisations.


Client satisfaction

Innovation is at the heart of what we do as a business every day. Sisk has been on the Lean journey since the late 1990s but undertook a step change in approach in 2016, recognising how core Lean principles matched the company’s focus on delivering value for customers and respecting and creating an efficient, safe and rewarding environment for all those who work with them.


Zero philosophy

Every Sisk employee's actions and behaviours are what make the biggest difference to our safety performance. This sets the highest standards all the time and helps Sisk employees become role models for those who look to us for leadership, support and direction.

We must consistently challenge unsafe behaviour and all play our part in making sure our people and those with whom we work with go home safely every day.

We are a member of the Gradcracker Five-Year Club
We have been a Gradcracker advertiser for at least five years. We recruit regularly and should still be doing so whenever it is time for you to apply for degree apprenticeships, placements or graduate positions - make sure that you Follow us to be alerted to any of our new opportunities.

The facts

Established in 1859. Sisk is in its 5th generation of family ownership.
In 1984 we opened our first office in the UK.
Sisk operates across a number of sectors including Civils, Residential, Energy and Pharmaceutical.
We're involved in landmark projects in UK, Ireland and Europe including the Aviva Stadium and Crossrail.
We currently have over 200 individuals in our Early Careers programmes.
Over 1,500 students have Followed us on Gradcracker.

Gradcracker Five-Year Club

A Gradcracker advertiser for over 5 years - ideal for you to Follow!
Member No: 142
We've signed the
Gradcracker Feedback Pledge
(This means that we will supply feedback if requested after an interview.)
Toolkit Sector Sponsor

We sponsor the Contracting sector.

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