Established in 1810 and still a family-owned business, Collen has offices in Dublin, Sweden and Germany and employs 400 people. The company’s clients range from large-scale multinational corporations to private companies and state bodies. Collen has established a reputation for providing complex projects on time and within budget.

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Collen is accredited to ISO 45001, ISO 9001, ISO 14001, and ISO 50001 and, in 2021, achieved ISO 27001:2017 accreditation for its information security management system.

Collen business improvement

Over the past year, Collen has made significant changes to its senior management team. The company has appointed Alex Murphy as Head of Business Development, Grainne Dowling as Head of HR, and Phillip Tierney as Head of IT.

This brings significant change to the company and strengthens its structure to meet the challenges of operating in both Irish and international markets.

Collen has also set up a variety of flexible working options that staff can now avail of as it recognises that a better work-life balance can improve employee motivation, performance, and productivity.

Collen Construction
Two South County, Leopardstown, Dublin.

Recent Collen projects

Collen is continually working on major commercial projects, including the Haymarket in Smithfield, Dublin, and it has recently reached practical completion of the Two South County commercial development in Leopardstown. In addition, works are still underway on two landmark developments in Dublin: The Sidings, a LEED-Platinum office development for Bartra Capital and the Premier Inn hotel and offices for Glenveagh.

Collen has been carrying out significant infrastructure upgrade works at Dublin and Cork airports. These works involve the installation of a new baggage handling system and the construction of a new building to facilitate these upgrades.

Since 2017, Collen has had a strong presence in the south Dublin area, and its teams are currently completing works on the construction of 45 apartments over Frascati Shopping Centre and have completed the phase three extension to Fern Dean Nursing Home, phases one and two were also completed by Collen.

Collen’s dedicated biopharma division delivered a 10,000-sq-metre CSA fit-out for WuXi Biologics in Dundalk, their new European headquarters. In addition to these projects, the company currently has 124MW of data halls under construction in Ireland, Sweden, and Germany.

Collen overview and outlook

Collen Managing Director, Tommy Drumm, commented on the company’s activities over the past year, saying: “We are very fortunate within the construction industry to be able to move forward and have our sites fully reopened after the Covid-19 lockdowns and restrictions implemented throughout 2020 and 2021. Despite the fact our hyperscale data-centre clients and pharma clients regard Collen as safety leaders, it is our commitment to constantly strive for safety innovation and improvement that led us to appoint two full-time external specialists in behavioural-based safety. This objective is to leverage their vast experience of mega-projects to assist us in developing the ‘Creating Safer Sites’ programme, a culture change programme designed to create a step-change in safety and wellbeing that is sustainable over time.

“Our core objective of Creating Safer Sites is to create an environment where all people on sites go home safe every day and feel in better shape for having worked at Collen. To achieve this objective, Collen strives to create a mindset for safety that is positive and proactive, ensure there is no gap in our safety performance, embed our safety values and ensure that they are visibly lived across the organisation. Collen also wants to develop a culture where all management and the workforce are committed to the same safety vision of everyone going home safely every day,” Tommy Drumm concludes.

Collen Construction
10,000-sq-metre CSA fit-out for WuXi Biologics in Dundalk.
Collen Construction
CGI of The Haymarket development in Smithfield, Dublin.

No 5: Collen Construction

ADDRESS: River House, East Wall Road, Dublin 3.

PHONE: 01 874 5411



TWITTER: @CollenConstruct

KEY EXECUTIVES: Neil Collen, Chairman; Tommy Drumm, Managing Director; Declan Lowry, Director; David Lee, Director; Donal Hennessy, Director; Tom O’Connor, Director; Kara Stuart, Company Secretary; Leslie Fitzpatrick, Finance Director; Philip Walsh, Financial Controller.

KEY ACTIVITIES: Main Contractor

YEAR-END: 31/03/2022