Company lists · Data refreshed September 2026

Top 25 Energy systems integration firms based in Ireland

Name: Energy systems integration firms based in Ireland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 104 companies tracked

RevenueBase identified 104 energy systems integration firms headquartered in Ireland as of September 2026 and tracks 53,789 professional contacts across them, including 7,266 with verified work emails. Dublin is the largest hub.

This list covers energy systems integration 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 28, 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 28, 2026 86% judged on-target in blind review

104Companies

53,789Contacts tracked

7,266Verified emails

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The 25 largest energy systems integration firms based in Ireland

Ranked by team size

Top 25 of 104 energy systems integration firms based in Ireland, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to energy systems integration 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	Johnson Controls	Strong evidence	Cork, IrelandHQ checked Sep 28, 2026	10001+	52,736 contacts →
	Strong evidence “Johnson Controls is a global leader in thermal management, mission-critical building systems, energy efficiency and decarbonization.” Source: RevenueBase Database · checked Sep 28, 2026
2	Tritech Engineering	Indirect evidence	Dublin 22, IrelandHQ checked Sep 28, 2026	201-500	173 contacts →
	Indirect evidence “Driving ESG Success Through Precision Engineering Investors today face increasing pressure to achieve higher building performance standards, meet strict sustainability targets…” Source: RevenueBase Database · checked Sep 28, 2026
3	Modular Automation	Indirect evidence	Shannon, IrelandHQ checked Sep 28, 2026	51-200	81 contacts →
	Indirect evidence “We enable the world’s leading medtech companies manufacture sophisticated, ultra-high quality, life-changing products, at scale.” Source: RevenueBase Database · checked Sep 28, 2026
4	SE Systems	Strong evidence	Cork, IrelandHQ checked Sep 28, 2026	51-200	59 contacts →
	Strong evidence “SE Systems (Sustainable Energy Systems) is Ireland's leading energy solutions provider.” Source: RevenueBase Database · checked Sep 28, 2026
5	Standard Control Systems	Strong evidence	Dublin, IrelandHQ checked Sep 28, 2026	51-200	59 contacts →
	Strong evidence “Standard Control Systems is an international specialist in Building Energy Management Systems (BEMS) and system integration.” Source: RevenueBase Database · checked Sep 28, 2026
6	Varming Consulting Engineers LTD	Indirect evidence	Dundrum, IrelandHQ checked Sep 28, 2026	11-50	55 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026
7	Enersol Engineering	Partial evidence	Drogheda, IrelandHQ checked Sep 28, 2026	51-200	49 contacts →
	Partial evidence “Enersol provides electrical power engineering services to the industrial, commercial, electrical utilities and renewable energy sectors in Ireland and the UK.” Source: RevenueBase Database · checked Sep 28, 2026
8	Galetech Group	Partial evidence	Stradone, IrelandHQ checked Sep 28, 2026	51-200	45 contacts →
	Partial evidence “Galetech Group is a leading Irish renewable energy company delivering smart, end-to-end clean energy solutions for clients across wind, solar, energy storage, sustainable…” Source: RevenueBase Database · checked Sep 28, 2026
9	Premium Power LTD	Indirect evidence	Dublin, IrelandHQ checked Sep 28, 2026	11-50	42 contacts →
	Indirect evidence “Premium Power is an electrical engineering consultancy focused on providing innovative, bespoke solutions to the data centre, pharmaceutical, manufacturing, renewable & utility…” Source: RevenueBase Database · checked Sep 28, 2026
10	Sygma Automation	Indirect evidence	Mallow Road, IrelandHQ checked Sep 28, 2026	11-50	35 contacts →
	Indirect evidence “Senior engineers located in the following areas: Cork - Dublin - Belfast - Galway - Mayo - Donegal - Roscommon - Longford - Kerry - Laois - Limerick Sygma Automation specialises…” Source: RevenueBase Database · checked Sep 28, 2026
11	Mcsherry Electrical LTD	Indirect evidence	Mallow, IrelandHQ checked Sep 28, 2026	51-200	25 contacts →
	Indirect evidence “Established in 1986, McSherry provides Electrical Engineering Services from design to installation and maintenance for the following industries: Process, Manufacturing, Food &…” Source: RevenueBase Database · checked Sep 28, 2026
12	Control And Information Management CIM LTD	Partial evidence	IrelandHQ checked Sep 28, 2026	51-200	20 contacts →
	Partial evidence “Control and Information Management (CIM) Ltd is one of the leading system integrators in the area of industrial automation in Ireland.” Source: RevenueBase Database · checked Sep 28, 2026
13	Onyx Engineering	Indirect evidence	Co. Louth, IrelandHQ checked Sep 28, 2026	1-10	16 contacts →
	Indirect evidence “ONYX Engineering Ltd.” Source: RevenueBase Database · checked Sep 28, 2026
14	Systemcore	Partial evidence	Dublin, IrelandHQ checked Sep 28, 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 28, 2026
15	Acutrace	Strong evidence	Dublin D12 K7x9, IrelandHQ checked Sep 28, 2026	1-10	12 contacts →
	Strong evidence “We are a Software and Systems Integration Company measuring Energy Consumption in Commercial and Industrial buildings while helping Businesses meet their CSR and Sustainability…” Source: RevenueBase Database · checked Sep 28, 2026
16	Ferm Engineering Ltd, Ireland	Partial evidence	Donegal, IrelandHQ checked Sep 28, 2026	51-200	12 contacts →
	Partial evidence “Established in 2006, Ferm Eng Limited his now positioned as a leader in Mechanical, Electrical and Renewable Energy Services in the North West of Ireland and further afield.” Source: RevenueBase Database · checked Sep 28, 2026
17	Alpha Drives & Switchgear	Indirect evidence	Portlaoise, IrelandHQ checked Sep 28, 2026	11-50	10 contacts →
	Indirect evidence “Alpha Drives & Switchgear is a Siemens & FLENDER Partner.” Source: RevenueBase Database · checked Sep 28, 2026
18	Full Stack Energy	Partial evidence	Limerick, IrelandHQ checked Sep 28, 2026	11-50	10 contacts →
	Partial evidence “Full Stack Energy is a specialist energy technology and engineering firm.” Source: RevenueBase Database · checked Sep 28, 2026
19	Blackwell Energy	Partial evidence	Dublin 6, IrelandHQ checked Sep 28, 2026	51-200	9 contacts →
	Partial evidence “Blackwell Energy design, supply & install home and business energy services such as solar PV, air source heat pumps, retrofit underfloor heating, air conditioning, deep retrofit…” Source: RevenueBase Database · checked Sep 28, 2026
20	Intelligent Building Controls LTD	Strong evidence	Oak Close, IrelandHQ checked Sep 28, 2026	1-10	9 contacts →
	Strong evidence “Intelligent Building Controls Ltd.(IBC) is an Irish owned business-to-business value added distributor of energy saving building management systems and controllers, founded in…” Source: RevenueBase Database · checked Sep 28, 2026
21	Shanahan Power Limited	Partial evidence	Newcastle West, IrelandHQ checked Sep 28, 2026	1-10	9 contacts →
	Partial evidence “We specialise in providing whole-of-life services across design, commissioning, maintenance, upgrades and overhaul for a range of power systems.” Source: RevenueBase Database · checked Sep 28, 2026
22	Lennon Solar	Partial evidence	IrelandHQ checked Sep 28, 2026	11-50	9 contacts →
	Partial evidence “At lennon solar, we are passionate about providing sustainable and affordable energy solutions to our clients.” Source: RevenueBase Database · checked Sep 28, 2026
23	Mccool Controls & Engineering	Partial evidence	Dublin, IrelandHQ checked Sep 28, 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 28, 2026
24	Newtricity LTD	Indirect evidence	Clones, IrelandHQ checked Sep 28, 2026	11-50	8 contacts →
	Indirect evidence “Newtricity is an electrical engineering services company operating in Ireland, the UK and Europe.” Source: RevenueBase Database · checked Sep 28, 2026
25	Environmental & Process Automation LTD	Indirect evidence	Leixlip, IrelandHQ checked Sep 28, 2026	11-50	8 contacts →
	Indirect evidence “E.P.A.” Source: RevenueBase Database · checked Sep 28, 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: energy systems integration 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 energy systems integration firms.
Partial evidence: Its own public description names part of energy systems integration firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy systems integration 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 25 of 104 energy systems integration firms based in Ireland

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Energy systems integration firms based in Ireland at a glance

As of Sep 28, 2026

13.5%Verified-email coverage

517.2Average contacts per company

11-50Median size (employees)

22.1%Largest-city concentration · Dublin

Sep 28, 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 104 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 energy systems integration 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 “energy systems integration 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 energy systems integration 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 energy systems integration 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, 7,266 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 28, 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 energy systems integration 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 energy systems integration firms are there based in Ireland?

RevenueBase identified 104 energy systems integration 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?

Johnson Controls, headquartered in Milwaukee, tops this list with the largest team on record.

Which city has the most energy systems integration firms?

Dublin leads with 23 headquartered companies, followed by Cork (5) and Dundalk (4).

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 7,266 verified decision-maker contacts tracked across these 104 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 28, 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.