Company lists · Data refreshed September 2026

Top 24 Infrastructure companies based in Ireland

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

Compiled by the RevenueBase Data Team Data refreshed Sep 15, 2026 101 companies tracked

RevenueBase identified 101 infrastructure companies headquartered in Ireland as of September 2026 and tracks 11,851 professional contacts across them, including 3,863 with verified work emails. Dublin is the largest hub.

This list covers infrastructure 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 15, 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 15, 2026 86% judged on-target in blind review

101Companies

11,851Contacts tracked

3,863Verified emails

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The 24 largest infrastructure companies based in Ireland

Ranked by team size

Top 24 of 101 infrastructure companies based in Ireland, ranked by team size, largest first. Data refreshed Sep 15, 2026. RevenueBase Smart Search rates how each company's information relates to infrastructure 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	CRH	Strong evidence	Dublin, IrelandHQ checked Sep 15, 2026	10001+	3,600 contacts →
	Strong evidence “CRH (NYSE: CRH) is the leading provider of building materials critical to modernizing infrastructure.” Source: RevenueBase Database · checked Sep 15, 2026
2	Mercury	Indirect evidence	Dublin, IrelandHQ checked Sep 15, 2026	1,001-5,000	2,418 contacts →
	Indirect evidence “Mercury is the European leader in construction solutions.” Source: RevenueBase Database · checked Sep 15, 2026
3	Ward And Burke	Indirect evidence	Kilcolgan, IrelandHQ checked Sep 15, 2026	1,001-5,000	632 contacts →
	Indirect 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 15, 2026
4	EPS Group	Strong evidence	Mallow, IrelandHQ checked Sep 15, 2026	501-1,000	360 contacts →
	Strong 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 15, 2026
5	Coffey	Indirect evidence	Athenry, IrelandHQ checked Sep 15, 2026	201-500	324 contacts →
	Indirect 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 15, 2026
6	GMC Utilities Group	Indirect evidence	Ballycoolin, IrelandHQ checked Sep 15, 2026	501-1,000	291 contacts →
	Indirect 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 15, 2026
7	Gaeltec Utilities Limited	Indirect evidence	Kilkenny, IrelandHQ checked Sep 15, 2026	201-500	206 contacts →
	Indirect evidence “Founded in 2003, Gaeltec Utilities Limited has grown to become one of the leading companies operating in the energy, renewable and telecommunication sectors.” Source: RevenueBase Database · checked Sep 15, 2026
8	BSO	Strong evidence	Dublin, IrelandHQ checked Sep 15, 2026	51-200	201 contacts →
	Strong evidence “Founded in and with a heritage serving the world’s largest financial institutions, BSO is a global pioneering infrastructure and connectivity provider, serving more than 400…” Source: RevenueBase Database · checked Sep 15, 2026
9	Egis In Ireland	Indirect evidence	Dundrum Road, IrelandHQ checked Sep 15, 2026	501-1,000	143 contacts →
	Indirect evidence “Egis is a leading global architectural, consulting, construction engineering, operations and mobility services firm.” Source: RevenueBase Database · checked Sep 15, 2026
10	Secto Services Limited	Strong evidence	Maynooth, IrelandHQ checked Sep 15, 2026	201-500	136 contacts →
	Strong 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 15, 2026
11	Whitewater Group	Indirect evidence	Naas, IrelandHQ checked Sep 15, 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 15, 2026
12	Siac Construction LTD	Indirect evidence	Dublin, IrelandHQ checked Sep 15, 2026	201-500	107 contacts →
	Indirect evidence “Founded in 1913, SIAC's business has grown through our reputation for delivering quality projects that always meet and often exceed our clients' expectations.” Source: RevenueBase Database · checked Sep 15, 2026
13	Colas Ireland	Indirect evidence	IrelandHQ checked Sep 15, 2026	201-500	65 contacts →
	Indirect evidence “Colas is an international leader in construction with a wide range of business units covering quarries, emulsion plants, asphalt, emulsifiers and bitumen plants.” Source: RevenueBase Database · checked Sep 15, 2026
14	NTR PLC	Strong evidence	Sandyford, IrelandHQ checked Sep 15, 2026	11-50	61 contacts →
	Strong evidence “Established in 1978, NTR is an experienced sustainable infrastructure investor and asset manager driving Europe’s clean energy transition.” Source: RevenueBase Database · checked Sep 15, 2026
15	CHM Group	Strong evidence	IrelandHQ checked Sep 15, 2026	51-200	53 contacts →
	Strong evidence “For over 20 years, we have been at the forefront of the Country’s largest transport and infrastructure projects, including the construction of the M50, Terminal 2 at Dublin…” Source: RevenueBase Database · checked Sep 15, 2026
16	Arkil LTD	Strong evidence	Co.kildare, IrelandHQ checked Sep 15, 2026	51-200	40 contacts →
	Strong evidence “Arkil Ltd is a leading Irish civil engineering and road materials company with over 35 years of experience delivering high-quality infrastructure solutions across Ireland.” Source: RevenueBase Database · checked Sep 15, 2026
17	Maveric Contractors LTD	Indirect evidence	Galway, IrelandHQ checked Sep 15, 2026	51-200	34 contacts →
	Indirect evidence “Maveric Contractors, through its European operating entity Maveric Bau GmbH, is an independent civil engineering specialist with over 25 years of experience delivering innovative…” Source: RevenueBase Database · checked Sep 15, 2026
18	Castlebrowne	Indirect evidence	Dublin, IrelandHQ checked Sep 15, 2026	11-50	31 contacts →
	Indirect evidence “Castlebrowne is a civil engineering and building contractor providing a full range of construction services.” Source: RevenueBase Database · checked Sep 15, 2026
19	SDS Design Engineers	Indirect evidence	Castlebar, IrelandHQ checked Sep 15, 2026	11-50	31 contacts →
	Indirect evidence “Established in 2003, we are an award winning design focused civil, structural, geotechnical and water engineering practice.” Source: RevenueBase Database · checked Sep 15, 2026
20	Rubicon Capital Advisors	Strong evidence	Dublin, IrelandHQ checked Sep 15, 2026	11-50	31 contacts →
	Strong evidence “Rubicon is one of the world’s leading investment banking firms focused solely on the infrastructure, energy & utilities sectors.” Source: RevenueBase Database · checked Sep 15, 2026
21	David Walsh Civil Engineering LTD	Strong evidence	Castledermot, IrelandHQ checked Sep 15, 2026	201-500	29 contacts →
	Strong evidence “David Walsh Civil Engineering Ltd is a family owned and managed business providing a wide range of high quality civil engineering and utility infrastructure services and solutions…” Source: RevenueBase Database · checked Sep 15, 2026
22	Towercom	Strong evidence	Dublin, IrelandHQ checked Sep 15, 2026	11-50	28 contacts →
	Strong evidence “We are one of Ireland’s longest-established independent wireless infrastructure providers.” Source: RevenueBase Database · checked Sep 15, 2026
23	Total Pipeline Specialists	Strong evidence	Greenogue Business Park, IrelandHQ checked Sep 15, 2026	11-50	25 contacts →
	Strong evidence “TPS is Irelands leading independent distributor of engineering materials and solutions to the multi-utility, infrastructure and construction sectors.” Source: RevenueBase Database · checked Sep 15, 2026
24	Niaron Limited	Indirect evidence	Foynes, IrelandHQ checked Sep 15, 2026	51-200	22 contacts →
	Indirect evidence “Welcome to Niaron Ltd.” Source: RevenueBase Database · checked Sep 15, 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: infrastructure 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 infrastructure companies.
Partial evidence: Its own public description names part of infrastructure companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name infrastructure 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 24 of 101 infrastructure companies based in Ireland

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Infrastructure companies based in Ireland at a glance

As of Sep 15, 2026

32.6%Verified-email coverage

117.3Average contacts per company

11-50Median size (employees)

11.9%Largest-city concentration · Dublin

Sep 15, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 101 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 infrastructure 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 “infrastructure 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 infrastructure 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 infrastructure 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, 3,863 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 15, 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 infrastructure 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 infrastructure companies are there based in Ireland?

RevenueBase identified 101 infrastructure 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?

CRH, headquartered in Dublin, tops this list with the largest team on record.

Which city has the most infrastructure companies?

Dublin leads with 12 headquartered companies, followed by Rathcoole (3) and Tralee (3).

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 3,863 verified decision-maker contacts tracked across these 101 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 15, 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.