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  • Exceeding our Clients Expectations

  • Prioritising Health and Safety

  • Quality and Excellence for over 200 years

  • Value Efficiency and Innovation

  • Skills and Craftmanship at our core


Commenting on the company's listing at No. 10 as noted in the table of the Top Irish Contractors in the Linesight 2017 Handbook, Managing Director Tommy Drumm attributed the company's success to its ability to satisfy client requirements and achieve the highest standards.

"Completing projects within programme, meeting budget constraints and providing a quality service, ensures the company is succeeding in forging strong relationships with its clients.  Our Clients are reassured by the high level of service provided by Collen staff both onsite and behind the scenes". 


Ireland, UK, Germany, Sweden 

Collen Construction is renowned for building long-lasting relationships with Clients, Consultants and Supply Chain members and at the heart of these relationships, is a common vision: to deliver projects efficiently, effectively and to the highest quality standards.  

In continuing to build upon relationships with existing Clients, Collen has expanded operations within mainland Europe, to deliver the same first class standard of projects that the firm has delivered in Ireland.   

As a result of the Company’s continued expansion in mainland Europe, Collen AB and Collen GmbH are currently seeking new supply partners to strengthen our existing supply chain in Europe.  If you are a Company focused on building long-lasting partnerships through delivery of high quality products and services, then we would like to hear from you.    

For further information please contact Tom O’Connor at construction@collen.com 



200 Years of Building Excellence

Collen Construction is a family owned business established in 1810 with a strong reputation for building quality and excellence.

The company has successfully tendered and negotiated projects for a range of clients including large multi-national corporations, private companies, local authorities and state authorities. We have established a reputation for providing complex projects on time and within budget.

Latest News

Tommy Drumm, Managing Director featured in the Irish Independent More Details

September Safety Initiative - Mindfulness More Details

CIF Construction Safety Week More Details

Inaugural Collen Trophy Presented at Dun Laoghaire Regatta More Details

Collen Construction 'Safety for All' Seminar More Details

Horizon Logistics Park Phase 2 Complete More Details

Audi's new €20 million flagship showroom in Dublin is now complete More Details

New extension to Frascati Shopping Centre Blackrock More Details

Collen Construction are the first Tier One Contractor to achieve ISO 9001:2015 & 14001:2015 Accreditation with NSAI. More Details

Recognition of 50,000 Safe Working Hours More Details

Works in Dublin Airport are now complete More Details

New €40m Multi-Storey office development in Central Park is now complete More Details



Collen GmbH

An Taoiseach Enda Kenny officially opened our new Collen GmbH offices in Frankurt Germany on Thursday April 6th. More Details

An Taoiseach Enda Kenny speaking at the event.

Joe Dillon (Senior Quantity Surveyor), Tom O'Connor (European Operations Manager), David Lee (Construction Director), An Taoiseach Enda Kenny, Kara Stuart (Company Secretary), Gerard Kelly (Engineer) and Julie Sinnamon (CEO Enterprise Ireland).

Tom O'Connor (European Operations Manager), David Lee (Construction Director), An Taoiseach Enda Kenny and Jack Collen (8th generation Collen).


200 Years

Building Excellence