Armatherm

The Irish Construction News Top 20 Mechanical and Electrical Contractors 2023 listing is a snapshot of the overall Irish M &E specialist services sector at the end of 2022.

Mercury

No 1: Mercury 

Total Turnover: €1.7BN

ROI Turnover: €581M

International Turnover: €1.119BN

Mercury is a European leader in construction solutions. The company builds and manages complex engineering and construction projects for the world’s leading corporations.

No 2: Jones Engineering

Total Turnover: €1.083BN

ROI Turnover: €663M

International Turnover: €420M

Jones Engineering is a global engineering contractor headquartered in Dublin with operations throughout Ireland, the UK, Europe and the Middle East.

No 3: Dornan Group

Total Turnover: €468M

ROI Turnover: €150M

International Turnover: €318M

Dornan Group is a leading mechanical, electrical, and HVAC engineering and construction company renowned for its exceptional projects across various sectors in Europe.

Pipelife

No 4: Kirby Group Engineering

Total Turnover: €454,100,000

ROI Turnover: €269,300,000

International Turnover: €184,800,000

Kirby Group Engineering is a privately owned Irish firm with an enduring reputation for delivering world-class projects and real value for its clients.

Suir Engineering

No 5: Suir Engineering 

Total Turnover: €313M

ROI Turnover: €212M

International Turnover: €71M

Suir Engineering is a European contractor with nearly 40 years of experience delivering mechanical, electrical and instrumentation (M, E&I) services. It is a leader in its fields in Europe, employing 1,500 direct employees and an expected turnover of over €400m in 2023.

Expert Electrical
Designer Group

No 6: Designer Group

Total Turnover: €220M

ROI Turnover: €120M

International Turnover: €100M

Founded in 1992, Designer Group is now a leading innovative and sustainable provider of mechanical, electrical and instrumentation engineering solutions. The business provides trusted MEP expertise for clients on an international scale, across Ireland, the UK, Europe, Africa and North America, with a client base spread over 14 sectors, including data centres and life sciences.

No 6: Specialist Technical Engineering Services (STS Group)

Total Turnover: €220M

ROI Turnover: €73M

International Turnover: €147M

Specialising in electrical, instrumentation and commissioning services, STS Group has been on an impressive growth trajectory of late. Having made substantial investments locally and internationally across its two main areas of focus – life sciences/pharma and data centres – the firm now has 1,600-plus personnel delivering some of the most challenging and prestigious projects with world-renowned brands.

No 8: King & Moffatt Building Services

Total Turnover: €155M

ROI Turnover: €48M

International Turnover: €107M

King & Moffatt Building Services is an award-winning mechanical and electrical contractor with over 400 directly-employed personnel. It has over 45 years of experience in the building services industry and an annual group turnover of over €155m.

No 9: Radley Engineering

Total Turnover: €86,955,871

ROI Turnover: €84,767,599

International Turnover: €2,188,272

Founded in 1972, Radley Engineering celebrated 50 years in business last year as one of Ireland’s leading mechanical engineering companies.

Grant

No 10: MSL Engineering Ltd

Total Turnover: €77M

ROI Turnover: €69M

International Turnover: €8M

MSL Engineering Ltd is a full-service mechanical engineering contractor operating across a wide range of industry sectors.

No 11: BMD & Co Limited

Total Turnover: €68.1M

ROI Turnover: €68.1M

With almost 50 years as one of Ireland’s leading mechanical engineering companies, BMD & Company Limited (BMD) has a track record of delivering projects across a wide range of industries, including life sciences, semiconductors and chemicals.

CJK Engineering

No 12: CJK Engineering

Total Turnover: €62,105,417

ROI Turnover: €62,105,417

CJK Engineering is an Irish-owned mechanical and electrical services contractor established in 1998. Based in Dublin, the company has steadily expanded its operations over the past 25 years and employs 350 people.

No 13: Lynskey Engineering

Total Turnover: €54.1M

ROI Turnover: €29,830,000

International Turnover: €24,270,000

Lynskey Engineering Ltd, founded in 1964, is one of Ireland’s leading mechanical engineering contractors. It has a reputation for quality installations delivered on time and within budget.

Leo Lynch

No 14: Leo Lynch Group

Total Turnover: €48M

ROI Turnover: €48M

Leo Lynch was established in 1956 and is one of Ireland’s leading mechanical and process-mechanical engineering contractors.

Tritech

No 15: Tritech Engineering

Total Turnover: €39.5M

ROI Turnover: €39.5M

Tritech is a mechanical, electrical and maintenance contractor that was founded in 1999.

Buttimer Engineering

No 16: Buttimer Engineering

Total Turnover: €30,785,702

ROI Turnover: €13,940,756

International Turnover: €16,844,946

No 17: Weltec Engineering

Total Turnover: €30,001,373

ROI Turnover: €30,001,373

Rockwell

No 18: Rockwell Engineering

Total Turnover: €24.7M

ROI Turnover: €24.7M

T Bourke

No 19: T Bourke Ltd

Total Turnover: €23M

ROI Turnover: €23M

Mastertech

No 20: Mastertech

Total Turnover: €18,599,973

ROI Turnover: €18,599,973