Company lists · Data refreshed September 2026

Top 25 Air conditioning companies based in Ireland

Name: Air conditioning companies based in Ireland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 47 companies tracked

RevenueBase identified 47 air conditioning companies headquartered in Ireland as of September 2026 and tracks 413 professional contacts across them, including 196 with verified work emails. Dublin is the largest hub.

This list covers air conditioning companies headquartered in Ireland, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 21, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review

47Companies

413Contacts tracked

196Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest air conditioning companies based in Ireland

Ranked by team size

Top 25 of 47 air conditioning companies based in Ireland, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to air conditioning companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Crystal AIR LTD	Strong evidence	Clane, IrelandHQ checked Sep 21, 2026	51-200	96 contacts →
	Strong evidence “Crystal Air is a leading service supplier in the field of air conditioning with regard to installations, servicing and maintenance.” Source: RevenueBase Database · checked Sep 21, 2026
2	Kelly RAC	Strong evidence	Ennis, IrelandHQ checked Sep 21, 2026	51-200	30 contacts →
	Strong evidence “Kelly Refrigeration and Air Conditioning is one of Ireland’s leading refrigeration, air conditioning and HVAC service providers, supporting commercial and industrial clients…” Source: RevenueBase Database · checked Sep 21, 2026
3	Harmon Group	Strong evidence	Dublin, IrelandHQ checked Sep 21, 2026	51-200	20 contacts →
	Strong evidence “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.” Source: RevenueBase Database · checked Sep 21, 2026
4	Trane Ireland	Strong evidence	Dublin, IrelandHQ checked Sep 21, 2026	n/a	19 contacts →
	Strong evidence “Make Trane Ireland your go-to commercial HVAC partner – for rental and sales of heating, ventilation and air conditioning systems.” Source: RevenueBase Database · checked Sep 21, 2026
5	Crosbie Group	Indirect evidence	Dublin 12, IrelandHQ checked Sep 21, 2026	11-50	19 contacts →
	Indirect evidence “Crosbie Group designs, delivers and maintains mission-critical refrigeration and HVAC systems for environments where failure is not an option.” Source: RevenueBase Database · checked Sep 21, 2026
6	Citycool	Strong evidence	Duleek, IrelandHQ checked Sep 21, 2026	11-50	17 contacts →
	Strong evidence “Citycool are a family run business that specialise in the hire and sale of high quality portable air conditioning, heating, dehumidifier and humidifer units.” Source: RevenueBase Database · checked Sep 21, 2026
7	Efficient Climate Control	Indirect evidence	Dublin 11, IrelandHQ checked Sep 21, 2026	11-50	15 contacts →
	Indirect evidence “Efficient Climate Control provides HVAC and mechanical services across commercial and industrial environments.” Source: RevenueBase Database · checked Sep 21, 2026
8	Coolair LTD	Indirect evidence	Dublin 24, IrelandHQ checked Sep 21, 2026	11-50	14 contacts →
	Indirect evidence “Established in 1970, Coolair have over 40 years market leading experience in the supply, installation, service and maintenance of HVAC Systems.” Source: RevenueBase Database · checked Sep 21, 2026
9	Refrigeration Solutions	Strong evidence	Naas, IrelandHQ checked Sep 21, 2026	11-50	13 contacts →
	Strong evidence “Refrigeration Solutions Limited is a commercial / retail refrigeration and air-conditioning company based in Co.” Source: RevenueBase Database · checked Sep 21, 2026
10	Entropic	Strong evidence	Maynooth, IrelandHQ checked Sep 21, 2026	11-50	12 contacts →
	Strong evidence “Entropic provide low energy, long life, air conditioning systems for indoor environments.” Source: RevenueBase Database · checked Sep 21, 2026
11	European Industrial Chillers Ltd.	Partial evidence	Dunboyne, IrelandHQ checked Sep 21, 2026	11-50	9 contacts →
	Partial evidence “As the exclusive Irish distributor for Aermec, Hitema and Fiorini we aim to inform you about the very latest and innovative products and technologies available for both Air…” Source: RevenueBase Database · checked Sep 21, 2026
12	Diamond AIR Conditioning LTD	Strong evidence	Dublin 15, IrelandHQ checked Sep 21, 2026	1-10	9 contacts →
	Strong evidence “Diamond Air Conditioning has teamed up with the very best Manufacturers in the Air Conditioning and Heating industry.” Source: RevenueBase Database · checked Sep 21, 2026
13	Complete AIR Conditioning	Strong evidence	Dublin City, IrelandHQ checked Sep 21, 2026	11-50	9 contacts →
	Strong evidence “Leading Irish Air Conditioning Specialists.” Source: RevenueBase Database · checked Sep 21, 2026
14	Buggy Refrigeration	Strong evidence	Tullamore, IrelandHQ checked Sep 21, 2026	11-50	8 contacts →
	Strong evidence “Bringing a fresh approach to your cooling needs'' We specialise in the Installation and Servicing on a wide range of Refrigeration and Air Conditioning Equipment.” Source: RevenueBase Database · checked Sep 21, 2026
15	Climatech LTD	Strong evidence	Sandymount, IrelandHQ checked Sep 21, 2026	1-10	7 contacts →
	Strong evidence “We are a refrigeration and air conditioning company that prides itself on our excellent workmanship and attention to detail.” Source: RevenueBase Database · checked Sep 21, 2026
16	Frescold Services	Strong evidence	Waterford, IrelandHQ checked Sep 21, 2026	1-10	6 contacts →
	Strong evidence “Founded in 1984, Frescold Services Ltd specialises in the supply and maintenance of Mitsubishi air conditioning units and systems and in the repair and maintenance of all air…” Source: RevenueBase Database · checked Sep 21, 2026
17	Excel Cooling Services	Strong evidence	IrelandHQ checked Sep 21, 2026	11-50	6 contacts →
	Strong evidence “We are a Refrigeration/Air Conditioning Company that Design, Install and Commissioning all equipment within our Industry.” Source: RevenueBase Database · checked Sep 21, 2026
18	Hoctor AIR Conditioning & Refrigeration Services	Strong evidence	Offaly, IrelandHQ checked Sep 21, 2026	11-50	6 contacts →
	Strong evidence “Hoctor Refrigeration and Air Conditioning was founded in 1981 and is based in Tullamore, County Offaly.” Source: RevenueBase Database · checked Sep 21, 2026
19	Thermoheat Mechanical LTD	Strong evidence	Dublin, IrelandHQ checked Sep 21, 2026	11-50	6 contacts →
	Strong evidence “ThermoHeat is a Dublin based mechanical company that offers a complete range of heating, plumbing, ventilation and air-conditioning solutions to commercial clients.” Source: RevenueBase Database · checked Sep 21, 2026
20	RSL Group	Strong evidence	IrelandHQ checked Sep 21, 2026	11-50	6 contacts →
	Strong evidence “Operating since 1967, RSL Ireland is the recognized national leader in the wholesale supply of refrigeration, air conditioning and allied equipment, industrial and commercial.” Source: RevenueBase Database · checked Sep 21, 2026
21	Ecocool Refrigeration And AIR Conditioning	Strong evidence	Kilkenny, IrelandHQ checked Sep 21, 2026	1-10	5 contacts →
	Strong evidence “ecoCOOl Refrigeration and Air Conditioning has it’s origins dating back to 1954, when Tom McDonald started his refrigeration business in Kieran Street, Kilkenny.” Source: RevenueBase Database · checked Sep 21, 2026
22	Source Technical Providers LTD	Strong evidence	Dublin, IrelandHQ checked Sep 21, 2026	11-50	5 contacts →
	Strong evidence “Source Air Conditioning & Electrical Services Ltd.” Source: RevenueBase Database · checked Sep 21, 2026
23	Apex Controls Limited	Indirect evidence	Sligo, IrelandHQ checked Sep 21, 2026	51-200	4 contacts →
	Indirect evidence “REFRIGERATION We design, supply and fit, efficient cost-saving refrigeration systems that not only meet your needs but also help you save on energy costs.” Source: RevenueBase Database · checked Sep 21, 2026
24	Whiriskey Refrigeration LTD	Strong evidence	Cregboy, IrelandHQ checked Sep 21, 2026	11-50	4 contacts →
	Strong evidence “Whiriskey Refrigeration was set up in the early seventies and has progressed to become one of the largest refrigeration and air conditioning companies in Ireland.” Source: RevenueBase Database · checked Sep 21, 2026
25	Higgins Refrigeration	Strong evidence	Ballinode, IrelandHQ checked Sep 21, 2026	11-50	4 contacts →
	Strong evidence “Higgins Refrigeration is a Refrigeration and Air conditioning company based out of Drumbarnet, Ballinode, Co.” Source: RevenueBase Database · checked Sep 21, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: air conditioning companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names air conditioning companies.
Partial evidence: Its own public description names part of air conditioning companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name air conditioning companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 47 air conditioning companies based in Ireland

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 196 reachable decision-makers.

Free signup · no credit card

View the full list →

Air conditioning companies based in Ireland at a glance

As of Sep 21, 2026

47.5%Verified-email coverage

8.8Average contacts per company

11-50Median size (employees)

21.3%Largest-city concentration · Dublin

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 47 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among air conditioning companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Ireland whose own description of what they do matches “air conditioning companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names air conditioning companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among air conditioning companies, and records with no verified work email. Companies headquartered outside Ireland are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 196 across the full list. 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 21, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names air conditioning companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many air conditioning companies are there based in Ireland?

RevenueBase identified 47 air conditioning companies headquartered in Ireland as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Crystal AIR LTD, headquartered in Clane, tops this list with the largest team on record.

Which city has the most air conditioning companies?

Dublin leads with 10 headquartered companies, followed by Clane (2) and Ireland (2).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 196 verified decision-maker contacts tracked across these 47 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 2026.

Ready to reach these companies? Verified emails and direct dials for all 47 air conditioning companies based in Ireland. Start with a free account, no credit card.

Download this list →

Related lists

Air conditioning companies by geography

Browse the directory

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 Smart Search, 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.