The Irish Construction News Top 40 Building Contractors 2026 listing is a snapshot of the building contractors’ sector of the Irish construction industry at the end of 2025.
No 01: Sisk
Sisk group turnover in 2025 was just over €2.6bn, a decrease of circe €151m on its 2024 turnover of €2.75bn.
Total Turnover: €2,600,000,000
ROI Turnover:€1,300,000,000
International Turnover: €1,300,000,000
No 02: Collen
Collen’s turnover in 2025 was €1.7bn, an increase of approximately €550m on its turnover of €1.15bn in 2024.
Turnover: €1,700,000,000
ROI Turnover: €306M
International Turnover: €1,394,000,000
No 03: Winthrop
Winthrop Technologies Limited’s turnover in 2025 was over €1.41bn, an decrease of approximately €178m on its turnover of €1.59bn in 2024.
Total Turnover: €1,410,315,000
ROI Turnover: €53,493,000
International Turnover: €1,356.822,000
No 04: John Paul Construction
John Paul Construction’s 2025 turnover of €1.05bn is an increase of approximately €310m from its 2024 turnover of €736m.
Total Turnover: €1,046,000,000
ROI Turnover: €906,000,000
International Turnover: €140,000,000
No 05: Walls Construction Ltd
Walls Construction’s turnover in 2025 of €670m is an increase of €39m over its 2023 turnover of €631m.
Total Turnover: €670,000,000
ROI Turnover: €665,000,000
International Turnover: €5,000,000
No 06: BAM Ireland
BAM Ireland’s turnover was €535m in 2025, an increase of €108m over its 2024 turnover of €427m.
Total Turnover: €535,000,000
ROI Turnover: €525,000,000
International Turnover: €10,000,000
No 07: JJ Rhatigan & Company
JJ Rhatigan & Company’s turnover was €533.5m in 2025, a decrease of €10m from its 2024 turnover of €543.5m.
Total Turnover: €533,500,000
ROI Turnover: €303,800,000
International Turnover: €229,700,000
No 08: PJ Hegarty & Sons
PJ Hegarty’s turnover was €528m in 2025, a decrease of €43m over its 2024 turnover of €571m.
Total Turnover:€528,000,000
ROI Turnover: €451,000,000
International Turnover: €77,000,000
No 09: Bennett (Construction) Ltd
Bennett (Construction) Ltd turnover was €492m in 2025, an increase of €117m over its 2024 turnover of €375m.
Total Turnover: €492,000,000
ROI Turnover: €353,000,000
International Turnover: €139,000,000
No 10: Murphy
Murphy’s turnover in 2025 was €340m, an increase of €35m over its 2024 turnover of €305m.
Total Turnover: €340,000,000
ROI Turnover: €305,000,000
International Turnover: €35,000,000
No 11: Wills Bros
Will Bros’ turnover was €329m in 2025, up €88m from its 2024 turnover of €241m.
Total Turnover: €329,000,000
ROI Turnover: €259,000,000
International Turnover: €70,000,000
No 12: Elliott Group
Elliott Group’s turnover was €320M in 2025, an increase of €10m over its 2024 turnover of €310m.
Total Turnover: €320,000,000
ROI Turnover: €220,000,000
International Turnover: €100,000,000
No 13: Errigal Group
Errigal Group’s turnover was €247m in 2025, up €1m from €246m in 2024.
Total Turnover: €247,000,000
ROI Turnover: €53,000,000
International Turnover: €194,000,000
No 14: GEM Group
GEM Group’s turnover was just over €240m in 2025, an increase of €54m from its 2024 turnover of €186m.
Total Turnover: €240,000,00
ROI Turnover: €239,000,000
International Turnover: €1,000,000
No 15: Flynn
Flynn’s turnover was €240M in 2025, an increase of €36m from its 2024 turnover of €204m.
Total Turnover: €240,000,000
ROI Turnover: €140,000,000
International Turnover: €100,000,000
No 16: Vision Contracting
Vision Contracting’s turnover was €221.1m in 2025, an increase of of €87.4m from its 2024 turnover of €133.7m.
Total Turnover: €221,213,473
ROI Turnover: €221,213,473
No 17: Ardmac
Ardmac’s turnover was €203m in 2025, a decrease of €25m from its 2024 turnover of €228m.
Total Turnover: €203,000,000
ROI Turnover: €92,000,000
International Turnover: €111,000,000
No 18: Clancy Construction
Clancy’s turnover was €161.1m in 2025, an increase of €19.6m over its 2024 turnover of €141.5m.
Total Turnover: €161,127,410
ROI Turnover: €161,127,410
N0 19: Conack Construction
Conack Construction’s turnover was €160m in 2025, the same as its turnover of €160m in 2024.
Total Turnover: €160,000,000
ROI Turnover: €160,000,000
No 20: Glanua
Glanua’s turnover was €155m in 2025, the same as its 2024 turnover of €155m.
Total Turnover: €155,000,000
ROI Turnover: €95,000,000
International Turnover: €60,000,000
No 21: Coffey
Total Turnover: €140M
ROI Turnover: €76M
International Turnover: €64M
No 22: Duggan Brothers Ltd
Total Turnover: €132M
ROI Turnover: €132M
No 23: Townmore Construction
Total Turnover: €130M
ROI Turnover: €111M
International Turnover: €19M
No 24: Ganson Building & Civil Engineering Ltd
Total Turnover: €125M
ROI Turnover: €80M
International Turnover: €45M
No 25: Monami Construction
Total Turnover: €111,885,000
ROI Turnover: €111,885,000
No 26: Cunningham
Total Turnover: €111,618,069
ROI Turnover: €101,401,668
ROI Turnover: €10,216,401
No 27: ABM Group
Total Turnover: €95M
ROI Turnover: €95M
No 28: Jons Civil Engineering Company Ltd
Total Turnover: €80.1M
ROI Turnover: €80.1M
No 29: Shareridge Civil Engineering
Total Turnover: €79.9M
ROI Turnover: €79.9M
No 30: Arkil Holding Ltd
Total Turnover: €74,413,000
ROI Turnover: €74,363,000
International Turnover: €50,000
No 31: Stewart Construction
Total Turnover: €70M
ROI Turnover: €70M
No 32: Townlink
Total Turnover: €69M
ROI Turnover: €69M
No 33: T&I Fit-Outs
Total Turnover: €66,292,287
ROI Turnover: €66,292,287
No 34: KPH Construction
Total Turnover: €66M
ROI Turnover: €66M
No 35: David Flynn Ltd
Total Turnover: €65.5M
ROI Turnover: €65M
International Turnover: €500,000
No 36: Clonmel Enterprises Ltd
Total Turnover: €56,920,601
ROI Turnover: €56,920,601
No 37: MMD Construction
Total Turnover: €56.5M
ROI Turnover: €56.5M
No 38: Kilcawley Construction
Total Turnover: €48M
ROI Turnover: €48M
No 39: ClearyDoyle
Total Turnover: €42M
ROI Turnover: €42M
