Dornan Group – A Turner Company ____________________________________________________________________
Dornan Group ( Dornan ), a Turner Company , has established itself as a major mechanical and electrical ( M & E ), and HVAC engineering and construction company through its extensive project experience across various sectors in Europe . Whether these projects consist of building state-of-the-art data centres or life sciences facilities , the company consistently delivers the best results for its clients . Thanks to a culture of hard work , honest advice , and supportive teams , led by straight talking visionaries , Dornan is shaping the future of engineering and driving the industry forward .
“ Next year , Dornan will turn 60 years old , having started its life as a traditional M & E business in the life sciences and industrial sectors in Ireland . Life sciences has had a base in Ireland for the last 60-to-70 years , which effectively enabled Dornan to grow alongside that sector over that period . Over
the last few years , the business has enjoyed so much steady growth that five years ago , its revenue was about € 365 million and last year , it exceeded € 700 million . At the beginning of 2025 , Dornan ’ s backlog is more than € 1.6 billion ,” opens Micheál O ’ Connor , Group Managing Director .
Increased scope
“ While our roots are still anchored in traditional M & E , the data centre sector has also contributed to our exceptional growth . At just over ten years old , the data centre sector is still relatively new and evolving , and we were fortunate to enter it early enough for us to grow in line with it . In recent years , some of our clients in this segment have asked us to expand our services beyond M & E , so we now offer general contracting ( GC ) as well . Notably , one of our clients follows a two tier general contracting
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