Company lists · Data refreshed November 2026

Top 25 Mechanical systems contractors based in Ireland

RevenueBase identified 133 company matches for mechanical systems contractors associated with Ireland as of November 2026 and tracks 1,955 professional contacts across them, including 953 with verified work emails. Dublin is the largest hub.

This list covers company matches for mechanical systems contractors 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 November 6, 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 Nov 6, 2026 How this list was built
133Companies
1,955Contacts tracked
953Verified emails
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The 25 largest mechanical systems contractors based in Ireland

Ranked by team size
Top 25 of 133 company matches for mechanical systems contractors based in Ireland, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchCork, IrelandHQ recorded Nov 6, 2026201-500131 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 · Nov 6, 2026 · View company records in RevenueBase
2Exact matchClane, IrelandHQ recorded Nov 6, 202651-200108 contacts →

Exact match

“Crystal Air is a leading service supplier in the field of air conditioning with regard to installations, servicing and maintenance.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchOld Dublin Road, IrelandHQ recorded Nov 6, 202651-20098 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 · Nov 6, 2026 · View company records in RevenueBase
4Exact matchDublin, IrelandHQ recorded Nov 6, 202651-20098 contacts →

Exact match

“ENGINEERING EXPERTISE THAT DELIVERS INTELLIGENCE, EXCELLENCE & INNOVATION TO EVERY PROJECT.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchDublin 12, IrelandHQ recorded Nov 6, 202651-20090 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 · Nov 6, 2026 · View company records in RevenueBase
6Exact matchDublin, IrelandHQ recorded Nov 6, 202651-20074 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 · Nov 6, 2026 · View company records in RevenueBase
7Exact matchDublin, IrelandHQ recorded Nov 6, 2026201-50066 contacts →

Exact match

“Since 2004, DMG Engineering has delivered Mechanical, Electrical, Air Conditioning and Maintenance contracting to commercial, industrial, pharmaceutical and healthcare clients…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchMagna Business Park, IrelandHQ recorded Nov 6, 202651-20058 contacts →

Exact match

“Thermodial are experts in planned preventative maintenance (PPM) of heating, ventilation and air conditioning (HVAC), BEMS, electrical and water services – since 1986.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchLoughrea, IrelandHQ recorded Nov 6, 202651-20057 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 · Nov 6, 2026 · View company records in RevenueBase
10Exact matchDublin 10, IrelandHQ recorded Nov 6, 202651-20055 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 · Nov 6, 2026 · View company records in RevenueBase
11Exact matchDublin, IrelandHQ recorded Nov 6, 202651-20053 contacts →

Exact match

“T Bourke is Ireland’s leading mechanical and electrical contractor.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchIrelandHQ recorded Nov 6, 2026201-50049 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 · Nov 6, 2026 · View company records in RevenueBase
13Exact matchBalbriggan, IrelandHQ recorded Nov 6, 202651-20042 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchDublin, IrelandHQ recorded Nov 6, 202651-20040 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 · Nov 6, 2026 · View company records in RevenueBase
15Exact matchAthboy, IrelandHQ recorded Nov 6, 202651-20037 contacts →

Exact match

“Midland Heating and Plumbing Ltd.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchDublin, IrelandHQ recorded Nov 6, 202651-20035 contacts →

Exact match

“Spectrum Engineering Limited was founded in 1982, and was set up to fill a gap in the Irish market for an independent HVAC Commissioning specialist firm.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchKilrush, IrelandHQ recorded Nov 6, 202651-20031 contacts →

Exact match

“Mechanical Engineering Contractor • Heavy Lifting Specialist • Process/Utility Pipework Fabrication and Installation • Tank Building & Repair’s • Modular Systems Innovator’s •…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchEnnis, IrelandHQ recorded Nov 6, 202651-20029 contacts →

Exact match

“Kelly Refrigeration and Air Conditioning is one of Ireland’s leading refrigeration, air conditioning and HVAC service providers, supporting commercial and industrial clients…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchDublin, IrelandHQ recorded Nov 6, 202651-20029 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 · Nov 6, 2026 · View company records in RevenueBase
20Exact matchKildare, IrelandHQ recorded Nov 6, 202611-5024 contacts →

Exact match

“Flowtech Engineering is a privately owned company that is able to assist with all HVAC requirements.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchDublin 12, IrelandHQ recorded Nov 6, 202611-5023 contacts →

Exact match

“Crosbie Group designs, delivers and maintains mission-critical refrigeration and HVAC systems for environments where failure is not an option.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchDublin, IrelandHQ recorded Nov 6, 202651-20022 contacts →

Exact match

“The roots of the Harmon Group are in the air-conditioning industry but over the years our business has grown to include electrical & mechanical divisions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchDublin, IrelandHQ recorded Nov 6, 2026n/a21 contacts →

Exact match

“Make Trane Ireland your go-to commercial HVAC partner – for rental and sales of heating, ventilation and air conditioning systems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchBallinrobe, IrelandHQ recorded Nov 6, 202651-20021 contacts →

Exact match

“Walsh Group is a Building Services Engineering Contractor offering a comprehensive range of installation services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchCork, IrelandHQ recorded Nov 6, 202611-5020 contacts →

Exact match

“ASMS – Architectural Steel & Mechanical Services was established in 2006, it is an Irish owned Company based in the South of the Country, We operate on a national scale from small…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 133 mechanical systems contractors based in Ireland

See the full list, filter by size, metro and specialty, and access 953 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Mechanical systems contractors based in Ireland at a glance

As of Nov 6, 2026
48.7%Verified-email coverage
14.7Average contacts per company
11-50Median size (employees)
26.3%Largest-city concentration · Dublin
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
40
11-50
50
51-200
32
201-500
5
10001+
1

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 133 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 systems contractors” 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 953 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 November 6, 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.

Mechanical systems contractors by metro

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 systems contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many mechanical systems contractors are there based in Ireland?

RevenueBase identified 133 company matches for mechanical systems contractors associated with Ireland as of November 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?

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

Which city has the most mechanical systems contractors?

Dublin leads with 35 company records, followed by Limerick (3) and Tullamore (3).

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 953 professional contacts with verified work emails tracked across these 133 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 November 6, 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.