Company lists · Data refreshed September 2026

Top 24 Hvac system optimization firms based in Ireland

Name: Hvac system optimization firms based in Ireland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 45 companies tracked

RevenueBase identified 45 hvac system optimization firms headquartered in Ireland as of September 2026 and tracks 531 professional contacts across them, including 182 with verified work emails. Dublin is the largest hub.

This list covers hvac system optimization firms 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 20, 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 20, 2026 86% judged on-target in blind review

45Companies

531Contacts tracked

182Verified emails

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The 24 largest hvac system optimization firms based in Ireland

Ranked by team size

Top 24 of 45 hvac system optimization firms based in Ireland, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to hvac system optimization firms: 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	Eirdata	Indirect evidence	Limerick, IrelandHQ checked Sep 20, 2026	11-50	36 contacts →
	Indirect evidence “Compliance Experts in Critical Airflow Environments.” Source: RevenueBase Database · checked Sep 20, 2026
2	Spectrum Engineering	Partial evidence	Dublin, IrelandHQ checked Sep 20, 2026	51-200	35 contacts →
	Partial evidence “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.” Source: RevenueBase Database · checked Sep 20, 2026
3	Kelly RAC	Partial evidence	Ennis, IrelandHQ checked Sep 20, 2026	51-200	30 contacts →
	Partial 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 20, 2026
4	Flowtech Engineering LTD	Partial evidence	Kildare, IrelandHQ checked Sep 20, 2026	11-50	22 contacts →
	Partial evidence “Flowtech Engineering is a privately owned company that is able to assist with all HVAC requirements.” Source: RevenueBase Database · checked Sep 20, 2026
5	Trane Ireland	Strong evidence	Dublin, IrelandHQ checked Sep 20, 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 20, 2026
6	Symphony Energy	Indirect evidence	Wicklow, IrelandHQ checked Sep 20, 2026	11-50	17 contacts →
	Indirect evidence “Symphony Energy is a global leader in optimising energy performance in the commercial built environment.” Source: RevenueBase Database · checked Sep 20, 2026
7	Efficient Climate Control	Partial evidence	Dublin 11, IrelandHQ checked Sep 20, 2026	11-50	15 contacts →
	Partial evidence “Efficient Climate Control provides HVAC and mechanical services across commercial and industrial environments.” Source: RevenueBase Database · checked Sep 20, 2026
8	Frontline Energy	Indirect evidence	Dublin 4, IrelandHQ checked Sep 20, 2026	11-50	15 contacts →
	Indirect evidence “We are energy innovators and pride ourselves in delivering an end to end range of expertise for the built environment that saves energy, carbon, time and cost.” Source: RevenueBase Database · checked Sep 20, 2026
9	Systemcore	Partial evidence	Dublin, IrelandHQ checked Sep 20, 2026	11-50	15 contacts →
	Partial evidence “We are the next generation of M&E consulting engineers, dedicated to designing systems for low-carbon, intelligent, self-optimising spaces that enhance occupant well-being, and…” Source: RevenueBase Database · checked Sep 20, 2026
10	Coolair LTD	Strong evidence	Dublin 24, IrelandHQ checked Sep 20, 2026	11-50	14 contacts →
	Strong 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 20, 2026
11	Blanchfield Heating	Indirect evidence	Kilkenny, IrelandHQ checked Sep 20, 2026	11-50	13 contacts →
	Indirect evidence “Blanchfield Heating was established in 1994 as a private owned business with a flexible client-focused approach and an appreciation of long term business relationships.” Source: RevenueBase Database · checked Sep 20, 2026
12	Entropic	Partial evidence	Maynooth, IrelandHQ checked Sep 20, 2026	11-50	12 contacts →
	Partial evidence “Entropic provide low energy, long life, air conditioning systems for indoor environments.” Source: RevenueBase Database · checked Sep 20, 2026
13	Euro GAS LTD	Indirect evidence	Bray, IrelandHQ checked Sep 20, 2026	11-50	11 contacts →
	Indirect evidence “Euro Gas – Ireland’s Leading Heating, Ventilation & Air Conditioning Specialists.” Source: RevenueBase Database · checked Sep 20, 2026
14	Cross Hire Services	Partial evidence	Dublin, IrelandHQ checked Sep 20, 2026	51-200	9 contacts →
	Partial evidence “We are Ireland's leading HVAC solutions provider.” Source: RevenueBase Database · checked Sep 20, 2026
15	Mccool Controls & Engineering	Partial evidence	Dublin, IrelandHQ checked Sep 20, 2026	11-50	8 contacts →
	Partial evidence “McCool Controls & Engineering's (MC3E) mission is to provide specialist Control Systems, with excellent service from design to conclusion, and to ensure optimum performance of the…” Source: RevenueBase Database · checked Sep 20, 2026
16	Synergy Engineering LTD	Indirect evidence	Dublin, IrelandHQ checked Sep 20, 2026	11-50	8 contacts →
	Indirect evidence “Synergy Engineering Limited (SEL) specializes in the design and development of building services, delivering innovative engineering solutions for commercial, retail, and…” Source: RevenueBase Database · checked Sep 20, 2026
17	Thermoheat Mechanical LTD	Indirect evidence	Dublin, IrelandHQ checked Sep 20, 2026	11-50	6 contacts →
	Indirect 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 20, 2026
18	Eurofluid Energy Solutions	Partial evidence	Dublin, IrelandHQ checked Sep 20, 2026	11-50	5 contacts →
	Partial evidence “Eurofluid Energy Solutions delivers sustainable, high-performance heating, cooling, hot water, and ventilation systems across Ireland’s commercial, residential, and district…” Source: RevenueBase Database · checked Sep 20, 2026
19	Apex Controls Limited	Partial evidence	Sligo, IrelandHQ checked Sep 20, 2026	51-200	4 contacts →
	Partial 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 20, 2026
20	Envision Engineering LTD	Partial evidence	Dublin, IrelandHQ checked Sep 20, 2026	1-10	4 contacts →
	Partial evidence “Envision Engineering has specialised in HVAC services project management, commissioning, testing and balancing and the qualification of clean room air handling services…” Source: RevenueBase Database · checked Sep 20, 2026
21	Exi-Tite Ireland LTD	Indirect evidence	Oakpark, IrelandHQ checked Sep 20, 2026	1-10	3 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
22	Powertherm Solutions	Indirect evidence	Blackrock, IrelandHQ checked Sep 20, 2026	1-10	3 contacts →
	Indirect evidence “PowerTherm Solutions was founded in 2002 and has since established itself as one of Ireland’s leading energy consultancies and energy-related services companies.” Source: RevenueBase Database · checked Sep 20, 2026
23	Veracity Maintaining Partnerships Limited	Partial evidence	Dublin, IrelandHQ checked Sep 20, 2026	1-10	3 contacts →
	Partial evidence “Veracity are specialists in HVAC sales, installation, planned preventative maintenance and emergency asset care.” Source: RevenueBase Database · checked Sep 20, 2026
24	Ecoheat Ireland	Indirect evidence	Limerick, IrelandHQ checked Sep 20, 2026	1-10	1 contacts →
	Indirect evidence “Established 2012, we are proud to be recognised for the service we provide to clients over the last seven years.” Source: RevenueBase Database · checked Sep 20, 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: hvac system optimization firms. 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 hvac system optimization firms.
Partial evidence: Its own public description names part of hvac system optimization firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name hvac system optimization firms. 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 24 of 45 hvac system optimization firms based in Ireland

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Hvac system optimization firms based in Ireland at a glance

As of Sep 20, 2026

34.3%Verified-email coverage

11.8Average contacts per company

11-50Median size (employees)

31.1%Largest-city concentration · Dublin

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 45 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 hvac system optimization firms, 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 “hvac system optimization firms”. 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 hvac system optimization firms), 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 hvac system optimization firms, 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, 182 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 20, 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 hvac system optimization firms, 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 hvac system optimization firms are there based in Ireland?

RevenueBase identified 45 hvac system optimization firms 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?

Eirdata, headquartered in Limerick, tops this list with the largest team on record.

Which city has the most hvac system optimization firms?

Dublin leads with 14 headquartered companies, followed by Cork (2) and Tallaght (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 182 verified decision-maker contacts tracked across these 45 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 20, 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 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.