Ireland's Top 20 Mechanical and Electrical Contractors 2025

CompanyTotal TurnoverIreland TurnoverInternational Turnover
1Mercury Engineering€1,811,000,000€472,000,000€1,339,000,000
2Jones Engineering€1,283,000,000€629,000,000€654,000,000
3Kirby Group Engineering€750,000,000€369,000,000€381,000,000
4Dornan Engineering LTD€734,000,000€148,000,000€586,000,000
5Suir Engineering€401,000,000€255,000,000€146,000,000
6Designer Group€310,000,000€160,000,000€150,000,000
7STS Group€298,450,000€117,669,798€180,780,202
8King & Moffatt Building Services€167,000,000€55,000,000€112,000,000
9MSL Engineering Ltd€115,000,000€108,000,000€7,000,000
10BMD & Company Limited€103,800,000€103,800,000€0
11Radley Engineering€100,853,757€100,853,757€0
12Leo Lynch€84,700,000€48,900,000€35,800,000
13CJK€70,000,000€70,000,000€0
14Lynskey Engineering Ltd€57,900,000€47,500,000€10,400,000
15Tritech Engineering€50,500,000€50,500,000€0
16AirconMech Ltd€50,100,000€49,100,000€1,000,000
17Dominic O’ Connor Ltd€43,163,553€43,163,553€0
18Weltec Engineering€41,700,000€41,700,000€0
19Quinn Downes Group€35,500,000€35,500,000€0
20Rockwell Engineering€31,100,000€31,100,000€0
Ireland's Top 20 Mechanical and Electrical Contractors 2025 by Irish Construction News