Company lists · Data refreshed September 2026

Top 25 Mechanical engineering firms based in Ireland

Name: Mechanical engineering firms based in Ireland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 64 companies tracked

RevenueBase identified 64 company matches for mechanical engineering firms associated with Ireland as of September 2026 and tracks 2,013 professional contacts across them, including 451 with verified work emails. Dublin is the largest hub.

This list covers company matches for mechanical engineering firms associated with Ireland, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 17, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 17, 2026 How this list was built

64Companies

2,013Contacts tracked

451Verified emails

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The 25 largest mechanical engineering firms based in Ireland

Ranked by team size

Top 25 of 64 company matches for mechanical engineering firms based in Ireland, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Dornan	Exact match	Cork, IrelandHQ recorded Sep 17, 2026	501-1,000	1,257 contacts →
	Exact match “Dornan Engineering concentrates on a market where quality is appreciated.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	Gaffney Mechanical	Exact match	Dublin, IrelandHQ recorded Sep 17, 2026	51-200	93 contacts →
	Exact match “ENGINEERING EXPERTISE THAT DELIVERS INTELLIGENCE, EXCELLENCE & INNOVATION TO EVERY PROJECT.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	Varming Consulting Engineers LTD	Exact match	Dundrum, IrelandHQ recorded Sep 17, 2026	11-50	55 contacts →
	Exact match “At Varming, we’re all about cutting-edge design and meticulous oversight of mechanical and electrical services, whether it’s for brand-new constructions or revitalizing existing…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	LMH Engineering Ireland	Exact match	Arklow, IrelandHQ recorded Sep 17, 2026	51-200	54 contacts →
	Exact match “Mechanical & Structural Engineering Solutions for both on-site and offsite construction.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	Project Engineering	Exact match	Ardee, IrelandHQ recorded Sep 17, 2026	n/a	49 contacts →
	Exact match “Project Engineering are a leading provider of mechanical engineering and product development services to the manufacturing and technology sectors.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Axiseng	Exact match	Dublin, IrelandHQ recorded Sep 17, 2026	11-50	47 contacts →
	Exact match “Axiseng Consulting Engineers is a premier independent building services consulting engineering practice, founded in 2004 and celebrating 20 years of excellence in delivering…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Hayes Mechanical & Engineering LTD	Exact match	Claremorris, IrelandHQ recorded Sep 17, 2026	51-200	41 contacts →
	Exact match “Hayes Mechanical & Engineering Ltd is an established mechanical engineering and structural steel contractor operating across Ireland, the UK and Europe.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Foynes Engineering Limited	Exact match	Limerick, IrelandHQ recorded Sep 17, 2026	51-200	36 contacts →
	Exact match “Founded in 1993 Foynes Engineering Ltd, is established as a key player engaged in heavy industry and the manufacture, installation, and commissioning of complete turnkey…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	MMA Consulting Engineers	Exact match	Balbriggan, IrelandHQ recorded Sep 17, 2026	11-50	35 contacts →
	Exact match “MMA Consulting Engineers is committed to providing integrated engineering solutions and has grown to become one of the most recognized and sought-after mechanical and electrical…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	MEP Engineering Services	Exact match	Cork, IrelandHQ recorded Sep 17, 2026	11-50	31 contacts →
	Exact match “MEP Engineering Services Ltd is a leading provider of high quality professional Mechanical and Electrical engineering & Project Management consultancy services to the…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	OMC	Exact match	Galway, IrelandHQ recorded Sep 17, 2026	11-50	22 contacts →
	Exact match “OMC Group, we provide a seamless, multidisciplinary consultancy service, specialising in engineering, design, and compliance solutions for commercial projects.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	NGS Mechanical & Electrical Services	Exact match	Dublin, IrelandHQ recorded Sep 17, 2026	51-200	19 contacts →
	Exact match “NGS Mechanical Services is a privately owned and run mechanical services company founded in 2013 by Noel Geraghty (formally of Noel Geraghty Heating and Plumbing).” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	ENX	Exact match	Dublin, IrelandHQ recorded Sep 17, 2026	11-50	13 contacts →
	Exact match “Mechanical, Electrical and Sustainability Consulting Engineers” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Pemcas	Exact match	Limerick, IrelandHQ recorded Sep 17, 2026	11-50	13 contacts →
	Exact match “Pemcas - is a multidisciplinary engineering company providing a complete range of services for design & construction (delivery) of your facilities and plant.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	JAK Consulting Engineers	Exact match	Dublin, IrelandHQ recorded Sep 17, 2026	11-50	12 contacts →
	Exact match “JAK Consulting Engineers is a leading multi-award winning MEP design and sustainable energy consultancy firm in Ireland, UK, Middle East and Asia.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Pmep Consulting LTD	Exact match	Citywest Shopping Centre, IrelandHQ recorded Sep 17, 2026	11-50	12 contacts →
	Exact match “Penston MEP Consulting Limited is a Mechanical and Electrical Engineering Consultancy Practice.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	DON O' Malley & Partners Consulting Engineers. Est. 1967	Exact match	Limerick, IrelandHQ recorded Sep 17, 2026	11-50	11 contacts →
	Exact match “Don O'Malley & Partners was established in 1967 and is one of Ireland’s leading Consulting Engineering Practices in Building Services Engineering.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Hybrid Engineering & Contracting LTD	Exact match	Mullingar, IrelandHQ recorded Sep 17, 2026	11-50	11 contacts →
	Exact match “Hybrid Engineering & Contracting operates as a Mechanical Engineering Contractor and has been positioning itself to become a market leader in the mechanical service sector.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Paragon GRP Limited	Exact match	Dublin, IrelandHQ recorded Sep 17, 2026	51-200	10 contacts →
	Exact match “An Engineering Group, specialising in Mechanical, Air Conditioning and Building Facilities contracts.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Temec Limited	Exact match	Dublin 15, IrelandHQ recorded Sep 17, 2026	11-50	10 contacts →
	Exact match “Mechanical Services Contractors” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Engenuiti	Exact match	Ballincollig Cork, IrelandHQ recorded Sep 17, 2026	11-50	9 contacts →
	Exact match “Engenuiti Consulting Engineers is a full-service engineering firm with a focus on structural and civil engineering services.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	Once Consultant Engineers	Exact match	Walkinstown, IrelandHQ recorded Sep 17, 2026	1-10	9 contacts →
	Exact match “Consultant Engineers based in Dublin, Ireland.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	PHM Consulting	Exact match	Limerick, IrelandHQ recorded Sep 17, 2026	1-10	8 contacts →
	Exact match “Civil and Structural Consulting Engineering Company” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Walsh Design Group	Exact match	Douglas, IrelandHQ recorded Sep 17, 2026	11-50	7 contacts →
	Exact match “Walsh Design Group is an established firm of Consulting Engineers with offices in Cork and Dublin.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Rigney Engineering LTD	Exact match	Kilrush, IrelandHQ recorded Sep 17, 2026	11-50	7 contacts →
	Exact match “Providing complete engineering solutions for almost 20 years.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “mechanical engineering firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 64 mechanical engineering firms based in Ireland

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Mechanical engineering firms based in Ireland at a glance

As of Sep 17, 2026

22.4%Verified-email coverage

31.5Average contacts per company

11-50Median size (employees)

12.5%Largest-city concentration · Dublin

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

501-1,000

Email recency for this list is measured worldwide rather than for Ireland, so it is reported there. Company counts and contact totals on this page are exact for Ireland, over 64 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Ireland whose business descriptions match “mechanical engineering firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every displayed company carries at least one verified work email. RevenueBase tracks 451 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 17, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “mechanical engineering firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many mechanical engineering firms are there based in Ireland?

RevenueBase identified 64 company matches for mechanical engineering firms associated with Ireland as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Dornan tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most mechanical engineering firms?

Dublin leads with 8 company records, followed by Limerick (5) and Abbeyfeale West (1).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 451 professional contacts with verified work emails tracked across these 64 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 17, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.