Company lists · Data refreshed September 2026

Top 25 Mechanical contractors for energy based in Ireland

Name: Mechanical contractors for energy based in Ireland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 111 companies tracked

RevenueBase identified 111 company matches for mechanical contractors for energy associated with Ireland as of September 2026 and tracks 4,994 professional contacts across them, including 2,181 with verified work emails. Dublin is the largest hub.

This list covers company matches for mechanical contractors for energy 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

111Companies

4,994Contacts tracked

2,181Verified emails

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The 25 largest mechanical contractors for energy based in Ireland

Ranked by team size

Top 25 of 111 company matches for mechanical contractors for energy 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	Kirby Group Engineering	Exact match	Limerick, IrelandHQ recorded Sep 17, 2026	1,001-5,000	1,486 contacts →
	Exact match “Founded in 1964, Kirby is a leading Mechanical and Electrical engineering contractor with operations in Ireland, the UK, mainland Europe and South Africa.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	Designer Group	Exact match	Dublin, IrelandHQ recorded Sep 17, 2026	1,001-5,000	911 contacts →
	Exact match “Designer Group is a leading Irish-owned engineering contractor delivering projects across Energy & Industrial, Data Centres and Building Services.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	King & Moffatt Building Services	Exact match	Carrick On Shannon, IrelandHQ recorded Sep 17, 2026	501-1,000	339 contacts →
	Exact match “King & Moffatt Building Services are award-winning international Mechanical & Electrical Contractors with over 45 years experience, operating throughout Ireland, the United…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	MSL Engineering LTD	Exact match	Cork, IrelandHQ recorded Sep 17, 2026	51-200	234 contacts →
	Exact match “Celebrating 40 years in business in 2019, MSL Engineering Ltd.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	OFS	Exact match	Naas, IrelandHQ recorded Sep 17, 2026	51-200	193 contacts →
	Exact match “OFS was established in 2002 to meet the growing needs of the international Oil & Gas, Power Generation and Energy markets.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Tritech Engineering	Exact match	Dublin 22, IrelandHQ recorded Sep 17, 2026	201-500	173 contacts →
	Exact match “Driving ESG Success Through Precision Engineering Investors today face increasing pressure to achieve higher building performance standards, meet strict sustainability targets…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Rockwell	Exact match	Cork, IrelandHQ recorded Sep 17, 2026	201-500	118 contacts →
	Exact match “Trusted delivery partner for design, installation and commissioning of HVAC, utility pipework, E&I, and decarbonisation solutions across all industries.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	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
9	Airconmech	Exact match	Old Dublin Road, IrelandHQ recorded Sep 17, 2026	51-200	89 contacts →
	Exact match “Trusted mechanical contractors for redefining environments, ensuring unparalleled comfort and efficiency with our comprehensive mechanical solutions and turnkey project delivery.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Quinn Downes Group	Exact match	Dublin 12, IrelandHQ recorded Sep 17, 2026	51-200	85 contacts →
	Exact match “Quinn Downes Mechanical Services Ltd was founded in by our Directors Pat Quinn and Derek Downes.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	Burlington Engineering	Exact match	Dublin, IrelandHQ recorded Sep 17, 2026	51-200	64 contacts →
	Exact match “Burlington Engineering Limited is a building services engineering provider with a long established reputation as one of the leading companies operating in its field.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	DMG Engineering LTD	Exact match	Dublin, IrelandHQ recorded Sep 17, 2026	201-500	62 contacts →
	Exact match “DMG Engineering Ltd have been in operation since 2004.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Dominic O'connor LTD	Exact match	Loughrea, IrelandHQ recorded Sep 17, 2026	51-200	55 contacts →
	Exact match “Dominic O'Connor Ltd are a progressive mechanical building services contractor based in the Loughrea, Co.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Lynskey Engineering LTD	Exact match	Dublin 10, IrelandHQ recorded Sep 17, 2026	51-200	47 contacts →
	Exact match “Lynskey Engineering Limited provide a wide scope of Mechanical Building Services covering commercial, industrial, process and mixed use developments.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Cloncad Limited	Exact match	Kildare, IrelandHQ recorded Sep 17, 2026	51-200	43 contacts →
	Exact match “Established in 2006, Cloncad is a 100% Irish owned contractor headquartered in Moyvalley, Kildare.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	T Bourke	Exact match	Dublin, IrelandHQ recorded Sep 17, 2026	51-200	42 contacts →
	Exact match “Ireland’s leading mechanical and electrical contractor, T BOURKE.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	TIM Kelly Group	Exact match	Ballybrit, IrelandHQ recorded Sep 17, 2026	201-500	41 contacts →
	Exact match “Tim Kelly Group, founded in 1974, is one of Ireland’s leading mechanical and electrical contractors offering mechanical, electrical, fire protection and technology solutions.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	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
19	Verax Limited	Exact match	Dublin, IrelandHQ recorded Sep 17, 2026	51-200	40 contacts →
	Exact match “Verax services include: preventative maintenance labour solutions; project labour solutions; turnkey equipment installation and decommissioning services; used equipment and parts…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Jcps Mechanical LTD	Exact match	Dublin, IrelandHQ recorded Sep 17, 2026	51-200	40 contacts →
	Exact match “JCPS Mechanical Ltd was established in 2007 by Managing Director John Corr and quickly expanded to become on of Ireland's leading Mechanical Contractors specialising in…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Kerrigan Mechanical LTD	Exact match	Athboy, IrelandHQ recorded Sep 17, 2026	51-200	37 contacts →
	Exact match “Midland Heating and Plumbing Ltd.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	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
23	Dunreidy Engineering LTD	Exact match	Kilkenny, IrelandHQ recorded Sep 17, 2026	51-200	32 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Europiping Engineering LTD	Exact match	Kilrush, IrelandHQ recorded Sep 17, 2026	51-200	28 contacts →
	Exact match “Mechanical Engineering Contractor.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	M&p Mechanical	Exact match	Dublin, IrelandHQ recorded Sep 17, 2026	51-200	27 contacts →
	Exact match “M&P Mechanical is a trusted, family-founded mechanical contracting company delivering high-quality, safe, and sustainable solutions across Ireland and beyond.” 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 contractors for energy”. 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 111 mechanical contractors for energy based in Ireland

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Mechanical contractors for energy based in Ireland at a glance

As of Sep 17, 2026

43.7%Verified-email coverage

45.0Average contacts per company

11-50Median size (employees)

24.3%Largest-city concentration · Dublin

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

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 111 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 contractors for energy” 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 2,181 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 contractors for energy”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many mechanical contractors for energy are there based in Ireland?

RevenueBase identified 111 company matches for mechanical contractors for energy 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?

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

Which city has the most mechanical contractors for energy?

Dublin leads with 27 company records, followed by Limerick (3) and Cork (2).

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 2,181 professional contacts with verified work emails tracked across these 111 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.