Company lists · Data refreshed September 2026

Top 22 Utility infrastructure construction companies based in Ireland

Name: Utility infrastructure construction companies based in Ireland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 32 companies tracked

RevenueBase identified 32 utility infrastructure construction companies headquartered in Ireland as of September 2026 and tracks 6,231 professional contacts across them, including 2,346 with verified work emails. Dublin is the largest hub.

This list covers utility infrastructure construction 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 19, 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 19, 2026 86% judged on-target in blind review

32Companies

6,231Contacts tracked

2,346Verified emails

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The 22 largest utility infrastructure construction companies based in Ireland

Ranked by team size

Top 22 of 32 utility infrastructure construction companies based in Ireland, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to utility infrastructure construction 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	Mercury	Partial evidence	Dublin, IrelandHQ checked Sep 19, 2026	1,001-5,000	2,418 contacts →
	Partial evidence “Mercury is the European leader in construction solutions.” Source: RevenueBase Database · checked Sep 19, 2026
2	Designer Group	Indirect evidence	Dublin, IrelandHQ checked Sep 19, 2026	1,001-5,000	911 contacts →
	Indirect evidence “Designer Group is a leading Irish-owned engineering contractor delivering projects across Energy & Industrial, Data Centres and Building Services.” Source: RevenueBase Database · checked Sep 19, 2026
3	Ward And Burke	Partial evidence	Kilcolgan, IrelandHQ checked Sep 19, 2026	1,001-5,000	632 contacts →
	Partial evidence “Since its establishment, Ward & Burke has sought to develop and adopt the ideals and aspirations to civil engineering construction and currently delivers class leading, reliable…” Source: RevenueBase Database · checked Sep 19, 2026
4	Glanua	Partial evidence	Galway, IrelandHQ checked Sep 19, 2026	201-500	417 contacts →
	Partial evidence “Glanua is an industry leader in providing innovative and sustainable engineering solutions to design, build and deliver critical water and wastewater infrastructure across UK and…” Source: RevenueBase Database · checked Sep 19, 2026
5	EPS Group	Partial evidence	Mallow, IrelandHQ checked Sep 19, 2026	501-1,000	360 contacts →
	Partial evidence “EPS Group is an international water infrastructure specialist operating across the Republic of Ireland, the UK and Northern Europe.” Source: RevenueBase Database · checked Sep 19, 2026
6	Coffey	Partial evidence	Athenry, IrelandHQ checked Sep 19, 2026	201-500	324 contacts →
	Partial evidence “Coffey is a family-owned civil engineering-led company operating in every major construction sector throughout Ireland and the UK.” Source: RevenueBase Database · checked Sep 19, 2026
7	GMC Utilities Group	Partial evidence	Ballycoolin, IrelandHQ checked Sep 19, 2026	501-1,000	291 contacts →
	Partial evidence “The GMC Utilities Group, comprising GMC Civil and Mechanical Engineering Ltd, Gerry McCloskey(Irl) Ltd, Gas Management Resources Limited and Meter Technology Ireland Ltd provide a…” Source: RevenueBase Database · checked Sep 19, 2026
8	Fingleton White	Partial evidence	Portlaoise, IrelandHQ checked Sep 19, 2026	201-500	175 contacts →
	Partial evidence “Fingleton White is a leading provider of multidisciplinary engineering services, delivering innovative solutions to utility owners and large energy users across the Energy, Water…” Source: RevenueBase Database · checked Sep 19, 2026
9	Egis In Ireland	Partial evidence	Dundrum Road, IrelandHQ checked Sep 19, 2026	501-1,000	143 contacts →
	Partial evidence “Egis is a leading global architectural, consulting, construction engineering, operations and mobility services firm.” Source: RevenueBase Database · checked Sep 19, 2026
10	Secto Services Limited	Partial evidence	Maynooth, IrelandHQ checked Sep 19, 2026	201-500	136 contacts →
	Partial evidence “Delivering Successful Engineering and Technical Services Secto Services is a fast growing Infrastructure build and engineering solutions company where customer service and the…” Source: RevenueBase Database · checked Sep 19, 2026
11	Whitewater Group	Indirect evidence	Naas, IrelandHQ checked Sep 19, 2026	201-500	131 contacts →
	Indirect evidence “Whitewater Group is a multi-disciplinary engineering company with water at the heart of everything we do.” Source: RevenueBase Database · checked Sep 19, 2026
12	Richard Nolan Civil Engineering	Partial evidence	Tallaght, IrelandHQ checked Sep 19, 2026	51-200	71 contacts →
	Partial evidence “Richard Nolan Civil Engineering is at the heart of the Irish civil engineering and utilities ducting industry delivering the highest quality solution in the safest manner.” Source: RevenueBase Database · checked Sep 19, 2026
13	Right Group	Indirect evidence	Castleisland, IrelandHQ checked Sep 19, 2026	51-200	57 contacts →
	Indirect evidence “At Right Group, our experienced team has collectively propelled us to the forefront as the leading provider of Electrical and Mechanical Engineering solutions in the water and…” Source: RevenueBase Database · checked Sep 19, 2026
14	Conway Engineering	Indirect evidence	Limerick, IrelandHQ checked Sep 19, 2026	11-50	14 contacts →
	Indirect evidence “Conway Engineering have been in operation for over 40 years specialising in the design, manufacture and installation of mechanical and electrical engineering solutions to meet…” Source: RevenueBase Database · checked Sep 19, 2026
15	Mcginty & O'shea LTD	Partial evidence	Cork, IrelandHQ checked Sep 19, 2026	51-200	14 contacts →
	Partial evidence “McGinty & O’Shea Ltd.(Building & Civil Engineering Contractors) operates across the many diverse sectors of the Irish construction industry.” Source: RevenueBase Database · checked Sep 19, 2026
16	Murphy Ireland	Partial evidence	IrelandHQ checked Sep 19, 2026	501-1,000	13 contacts →
	Partial evidence “Over the past 55 years, Murphy Ireland has built a reputation for quality and excellence, offering industry-leading services in transportation, infrastructure, energy, structural…” Source: RevenueBase Database · checked Sep 19, 2026
17	Citius	Strong evidence	Dublin, IrelandHQ checked Sep 19, 2026	11-50	7 contacts →
	Strong evidence “As the leading Irish utilities company, providing cutting edge infrastructural solutions to our clients, Citius is widely recognised across the nation for our exceptional quality…” Source: RevenueBase Database · checked Sep 19, 2026
18	CLARE	Partial evidence	Rathcoole, IrelandHQ checked Sep 19, 2026	201-500	4 contacts →
	Partial evidence “Irish civil engineering contracts, specialising in Airport Infrastructure, Roadworks, Landfill Projects, Watermains Systems and Business Parks.” Source: RevenueBase Database · checked Sep 19, 2026
19	Clar-Con Construction LTD	Partial evidence	Jordanstown, IrelandHQ checked Sep 19, 2026	1-10	4 contacts →
	Partial evidence “Clar-Con construction Ltd was set up in 2019 (previously Fal-Clar construction) and draws on over 20 years of experience in the construction sector.” Source: RevenueBase Database · checked Sep 19, 2026
20	Streamflow Engineering	Indirect evidence	Shannon, IrelandHQ checked Sep 19, 2026	1-10	4 contacts →
	Indirect evidence “Streamflow Engineering is a dynamic company providing innovative and client-driven engineering and consultancy services to the Water and Wastewater sectors.” Source: RevenueBase Database · checked Sep 19, 2026
21	Midland Plant And Civil	Strong evidence	Borris In Ossory, IrelandHQ checked Sep 19, 2026	11-50	3 contacts →
	Strong evidence “MPC Civil Engineering Established in 2018, MPC is a leading construction company in the renewables and utilities sectors.” Source: RevenueBase Database · checked Sep 19, 2026
22	Direct Utilities LTD	Partial evidence	Dublin, IrelandHQ checked Sep 19, 2026	11-50	1 contacts →
	Partial evidence “Direct Utilities provides a full turn-key one-stop shop for utilities installation and maintenance.” Source: RevenueBase Database · checked Sep 19, 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: utility infrastructure construction 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 utility infrastructure construction companies.
Partial evidence: Its own public description names part of utility infrastructure construction companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name utility infrastructure construction 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 22 of 32 utility infrastructure construction companies based in Ireland

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Utility infrastructure construction companies based in Ireland at a glance

As of Sep 19, 2026

37.7%Verified-email coverage

194.7Average contacts per company

51-200Median size (employees)

12.5%Largest-city concentration · Dublin

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 32 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 utility infrastructure construction 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 “utility infrastructure construction 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 utility infrastructure construction 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 utility infrastructure construction 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, 2,346 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 19, 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 utility infrastructure construction 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 utility infrastructure construction companies are there based in Ireland?

RevenueBase identified 32 utility infrastructure construction 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?

Mercury, headquartered in Blanchardstown, tops this list with the largest team on record.

Which city has the most utility infrastructure construction companies?

Dublin leads with 4 headquartered companies, followed by Portlaoise (2) and Rathcoole (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 2,346 verified decision-maker contacts tracked across these 32 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 19, 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.