Top engineering companies in Ireland
| Company Name | Country | City | Address 1 | State/Province | Postal Code | Website | Founding Year | Yearly Revenue in U.S. Dollars | Employees Total | Business Legal Type - Description | Number of Companies in Group | Company Registration Number | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Accenture LIMITED | Ireland | Dublin | 1 Grand Canal Square Grand Canal Harbour | Dublin | D02P820 | N/A | 2001 | $61,594,305,000 | 693,748 | Corporation | 1626 | 340745 |
| 2 | Mattest (ireland) LIMITED | Ireland | Dublin | Unit 2 Northwest Business Park | Dublin | D15 EF1H | mattest.***** | 1976 | $16,943,249,180 | 66,466 | Corporation | 3183 | 55796 |
| 3 | Gea Westfalia Separator Ireland LIMITED | Ireland | Cork | Coolroe | Cork | P31 H016 | N/A | 1974 | $5,271,840,234 | 26,327 | Corporation | 382 | 46107 |
| 4 | Ward & Burke Group LIMITED | Ireland | Galway | Stradbally East | Galway | N/A | N/A | 2002 | $750,298,345 | 1,294 | Corporation | 11 | 352581 |
| 5 | H & Mv Engineering LIMITED | Ireland | Castletroy | Hamilton House Block 2 | Limerick | V94 YHD6 | software-engineering.***** | 1997 | $504,857,399 | 1,056 | Corporation | 34 | 266920 |
| 6 | Jacobs Engineering Ireland LIMITED | Ireland | Dublin | Merrion House | Dublin | D04 R2C5 | jacobs.***** | 1986 | $500,695,906 | 605 | Corporation | 89 | 111945 |
| 7 | Bord Na Móna Biomass LIMITED | Ireland | Tullamore | Boora | Offaly | N/A | N/A | 1999 | $418,064,865 | 1,387 | Corporation | 1004 | 303311 |
| 8 | Murphy International LIMITED | Ireland | Newbridge | Greatconnell | Kildare | W12 HD61 | murphygroup.***** | 1968 | $301,918,146 | 800 | Corporation | 53 | 26587 |
| 9 | Arcadis Consulting Ireland LIMITED | Ireland | Cork | Eastgate Business Park | Cork | T45 X265 | arcadis.***** | 1995 | $253,325,385 | 618 | Corporation | 537 | 239480 |
| 10 | Gem Construction Company LIMITED | Ireland | Longford | Athlone Road | Longford | N39 H702 | gemgroup.***** | 1976 | $144,369,435 | 81 | Corporation | 11 | 57365 |
| 11 | Silent-Aire Europe LIMITED | Ireland | Dublin | Unit 56 Park West Road, | Dublin | D12 FFDO | silent-aire.***** | 2017 | $143,524,701 | 356 | Corporation | 2636 | 602003 |
| 12 | Arcadis Engineering Holdings LIMITED | Ireland | Cork | 4 Eastgate Avenue Eastgate Business Park | Cork | T45 X265 | arcadis.***** | 2004 | $139,237,389 | 1,371 | Corporation | 537 | 385008 |
| 13 | Msl Engineering LIMITED | Ireland | Ringaskiddy | Ringport Business Park | Cork | P43 RX06 | mslengineering.***** | 1999 | $123,496,552 | 332 | Corporation | 3 | 316191 |
| 14 | Apleona Ireland LIMITED | Ireland | Dublin | Landscape House | Dublin | D14 A6P3 | apleona.***** | 1974 | $117,195,659 | 1,211 | Corporation | N/A | 49363 |
| 15 | Breedon Materials LIMITED | Ireland | Dublin | Stadium Business Park | Dublin | D11 CY95 | N/A | 1989 | $115,547,554 | 96 | Corporation | 149 | 123494 |
| 16 | B.M.D. & Company LIMITED | Ireland | Cork | 8 Eastgate Avenue | Cork | T45 NF24 | bmd.***** | 1972 | $109,789,172 | 427 | Corporation | 12 | 37978 |
| 17 | Aecom Ireland LIMITED | Ireland | Dublin | Burlington Plaza 1 | Dublin | D04 RH96 | aecom.***** | 1999 | $98,193,013 | 370 | Corporation | 19 | 315981 |
| 18 | L. Lynch And CO LIMITED | Ireland | Dublin | Unit 16 Fonthill Industrial Park, Fonthill Road North | Dublin | N/A | leolynch.***** | 1964 | $89,234,656 | 249 | Corporation | 33 | 21901 |
| 19 | Sepam Group LIMITED | Ireland | Clonmel | 41-44 Irishtown Upper | North Tipperary | E91 KD72 | sepamgroup.***** | 2007 | $87,860,369 | 370 | Corporation | 7 | 447288 |
| 20 | Atlantic Projects Company LIMITED | Ireland | Dun Laoghaire | 3 Marine Road | Dublin | A96 HW25 | atlanticprojects.***** | 1997 | $80,989,370 | 227 | Corporation | 20 | 276990 |
| 21 | Expleo Technology Ireland LIMITED | Ireland | Dublin | 30 North Wall Quay | Dublin | D01 R8H7 | expleo.***** | 1999 | $80,896,267 | 492 | Corporation | 2228 | 307763 |
| 22 | Dmg Engineering LIMITED | Ireland | Donabate | Unit 10 the Shannon Valley Centre | Dublin | N/A | dmgengineering.***** | 2004 | $70,398,976 | 76 | Corporation | 3 | 383217 |
| 23 | Ganson Building & Civil Engineering Contractors LIMITED | Ireland | Dublin | Unit 19, Balbriggan | Dublin | K32 YE19 | ganson.***** | 2003 | $68,449,867 | 113 | Corporation | 27 | 371334 |
| 24 | Mjt Engineering Holdings LIMITED | Ireland | Ballybay | Patrick Street | Monaghan | A75HE33 | N/A | 2014 | $66,424,393 | 106 | Corporation | N/A | 543423 |
| 25 | Turner & Townsend LIMITED | Ireland | Dublin | Ashford House | Dublin | D02 VX67 | turnerandtownsend.***** | 1984 | $65,051,225 | 334 | Corporation | 2 | 102886 |
Showing 25 of 7,366 companies
Request Free SampleEngineering companies in Ireland by region
7.366 engineering companies across 38 Irish counties. The table below shows the share each region holds.
Engineering companies in Ireland by employee size
| Bracket | Companies | Share |
|---|---|---|
| 1-4 | 6.163 | |
| 5-9 | 435 | |
| 10-19 | 386 | |
| 20-49 | 206 | |
| 0 or Unknown | 62 | |
| 50-99 | 57 | |
| 100-199 | 32 | |
| 200-499 | 16 | |
| 500-999 | 5 | |
| 10.000+ | 2 | |
| 1.000-4.999 | 2 |
Engineering companies in Ireland by revenue
| Bracket | Companies | Share |
|---|---|---|
| 1 to 100.000 | 6.305 | |
| 100.001 to 499.999 | 847 | |
| 10.000.000 to 49.999.999 | 73 | |
| 1.000.000 to 4.999.999 | 53 | |
| 0 or Unknown | 37 | |
| 50.000.000 to 99.999.999 | 14 | |
| 5.000.000 to 9.999.999 | 11 | |
| 500.000 to 999.999 | 10 | |
| 100.000.000 to 499.999.999 | 10 | |
| 1.000.000.000 or more | 3 | |
| 500.000.000 to 999.999.999 | 3 |
NACE Rev 2, NACE and industry classification for Irish engineering companies
Irish engineering companies are classified under NACE Rev 2 code 7112. Ireland's NACE Rev 2 classification mirrors NACE Rev 2 at the 4-digit level, so the codes match exactly. The list above covers every active business in this category registered with the Companies Registration Office (CRO) (Irish Business Register).
Closely related business services
Frequently asked questions about engineering companies in Ireland
Our list tracks 7.366 active engineering companies across every Irish provincie, sourced from the Irish Companies Registration Office (CRO) (commercial register) and verified monthly. The exact count changes as firms register, dissolve and merge.
The region with the most engineering companies is Dublin, followed by the other major economic regions. The full regional breakdown above shows the share each Irish provincie holds.
Irish engineering companies are classified under NACE Rev 2 code 7112, which mirrors Ireland's national NACE Rev 2 codes. The list above covers every active Irish company in this category. Ireland's NACE Rev 2 classification is a 1:1 NACE Rev 2 implementation at the 4-digit level, so the codes match exactly.
Yes. Apply your filters (region, size, revenue, etc.) on the platform, preview the result, then export the full filtered list as CSV or Excel. Larger exports are delivered by email link. Request a free sample first if you want to evaluate the data before you buy.
Every record includes the firm name, full address, primary phone, business email (where available), website, organisasjonsnummer (org. nr.), VAT registration, employee size, revenue band, founding year and NACE / NACE Rev 2 classification. Records are sourced from the Companies Registration Office (CRO) (commercial register) and re-verified monthly.
Monthly. Each refresh removes firms that have dissolved and adds new registrations from the latest Companies Registration Office (CRO) feeds. The "Last updated" line at the top of this page shows the most recent refresh date.
38 Irish counties have at least one active engineering companie in our list. The region with the most engineering companies is Dublin, followed by the other major economic regions. Use the regional breakdown table above to see the full distribution.
