Company lists · Data refreshed September 2026

Top 25 Infrastructure construction companies based in Ireland

Name: 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 15, 2026 100 companies tracked

RevenueBase identified 100 infrastructure construction companies headquartered in Ireland as of September 2026 and tracks 11,486 professional contacts across them, including 3,555 with verified work emails. Dublin is the largest hub.

This list covers 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 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

100Companies

11,486Contacts tracked

3,555Verified emails

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

The 25 largest infrastructure construction companies based in Ireland

Ranked by team size

Top 25 of 100 infrastructure construction 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 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	CRH	Partial evidence	Dublin, IrelandHQ checked Sep 15, 2026	10001+	3,600 contacts →
	Partial evidence “CRH (NYSE: CRH) is the leading provider of building materials critical to modernizing infrastructure.” Source: RevenueBase Database · checked Sep 15, 2026
2	Mercury	Partial evidence	Dublin, IrelandHQ checked Sep 15, 2026	1,001-5,000	2,418 contacts →
	Partial evidence “Mercury is the European leader in construction solutions.” Source: RevenueBase Database · checked Sep 15, 2026
3	Ward And Burke	Partial evidence	Kilcolgan, IrelandHQ checked Sep 15, 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 15, 2026
4	Coffey	Partial evidence	Athenry, IrelandHQ checked Sep 15, 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 15, 2026
5	Nicholas O'dwyer LTD	Indirect evidence	Dublin, IrelandHQ checked Sep 15, 2026	201-500	284 contacts →
	Indirect evidence “Nicholas O'Dwyer Ltd, Consulting Engineers, provide water engineering, environmental engineering and civil and structural engineering services to public and private sector clients.” Source: RevenueBase Database · checked Sep 15, 2026
6	Elliott Group	Partial evidence	Cavan, IrelandHQ checked Sep 15, 2026	201-500	239 contacts →
	Partial evidence “Construction has always been a pivotal part of the Elliott family.” Source: RevenueBase Database · checked Sep 15, 2026
7	Roughan & O'donovan	Indirect evidence	Sandyford, IrelandHQ checked Sep 15, 2026	201-500	227 contacts →
	Indirect evidence “Roughan and O’Donovan (ROD) is a leading civil, environmental and structural engineering consultancy.” Source: RevenueBase Database · checked Sep 15, 2026
8	Egis In Ireland	Partial evidence	Dundrum Road, IrelandHQ checked Sep 15, 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 15, 2026
9	Secto Services Limited	Partial evidence	Maynooth, IrelandHQ checked Sep 15, 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 15, 2026
10	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
11	Punch Consulting Engineers	Indirect evidence	Limerick, IrelandHQ checked Sep 15, 2026	51-200	105 contacts →
	Indirect evidence “PUNCH Consulting Engineers is the business name of Michael Punch and Partners Limited and is one of Ireland's leading + most experienced engineering consultancies.” Source: RevenueBase Database · checked Sep 15, 2026
12	Jons Civil Engineering Company LTD	Indirect evidence	Carranstown (duleek), IrelandHQ checked Sep 15, 2026	51-200	103 contacts →
	Indirect evidence “JCEL have been in operation since 1983.” Source: RevenueBase Database · checked Sep 15, 2026
13	Sorensen Civil Engineering LTD	Partial evidence	Cork, IrelandHQ checked Sep 15, 2026	51-200	69 contacts →
	Partial evidence “Sorensen Civil Engineering Ltd is a multi-disciplined construction company that was established in 1977 and has grown to become one of Ireland's leaders in the civil and marine…” Source: RevenueBase Database · checked Sep 15, 2026
14	Colas Ireland	Partial evidence	IrelandHQ checked Sep 15, 2026	201-500	65 contacts →
	Partial 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
15	Clonmel Enterprises LTD	Indirect evidence	Naas, IrelandHQ checked Sep 15, 2026	51-200	61 contacts →
	Indirect evidence “Established in 1979, Clonmel Enterprises Ltd is a leading main contracting building and civil engineering company.” Source: RevenueBase Database · checked Sep 15, 2026
16	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
17	Cleantech Civils	Indirect evidence	Co Cavan, IrelandHQ checked Sep 15, 2026	51-200	44 contacts →
	Indirect evidence “P&S Civil Works was incorporated in 1968, our trading name is Cleantech Civils.” Source: RevenueBase Database · checked Sep 15, 2026
18	Arkil LTD	Partial evidence	Co.kildare, IrelandHQ checked Sep 15, 2026	51-200	40 contacts →
	Partial 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
19	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
20	Carey Building Contractors	Indirect evidence	Galway, IrelandHQ checked Sep 15, 2026	51-200	32 contacts →
	Indirect evidence “Established in 1998, by Paul Carey, Carey Building Contractors are based in Liosban Business Park, Tuam Road, Galway.” Source: RevenueBase Database · checked Sep 15, 2026
21	Mccallion Group	Partial evidence	Buncrana, IrelandHQ checked Sep 15, 2026	51-200	32 contacts →
	Partial evidence “McCallion Group is a market leading nationwide construction company, with its Head Office Buncrana, Co.” Source: RevenueBase Database · checked Sep 15, 2026
22	Castlebrowne	Partial evidence	Dublin, IrelandHQ checked Sep 15, 2026	11-50	31 contacts →
	Partial evidence “Castlebrowne is a civil engineering and building contractor providing a full range of construction services.” Source: RevenueBase Database · checked Sep 15, 2026
23	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
24	Triur Construction LTD	Indirect evidence	Ballinasloe, IrelandHQ checked Sep 15, 2026	51-200	24 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 15, 2026
25	Nevin Construction Building Contractors	Partial evidence	Waterford, IrelandHQ checked Sep 15, 2026	11-50	23 contacts →
	Partial evidence “Over the last 21 years, Nevin Construction has built a reputation as a building contractor that drives for greater value.” 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 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 infrastructure construction companies.
Partial evidence: Its own public description names part of 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 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 25 of 100 infrastructure construction companies based in Ireland

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 3,555 reachable decision-makers.

Free signup · no credit card

View the full list →

Infrastructure construction companies based in Ireland at a glance

As of Sep 15, 2026

31.0%Verified-email coverage

114.9Average contacts per company

11-50Median size (employees)

9.0%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 100 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 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 “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 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 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, 3,555 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 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 infrastructure construction companies are there based in Ireland?

RevenueBase identified 100 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?

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

Which city has the most infrastructure construction companies?

Dublin leads with 9 headquartered companies, followed by Limerick (4) and Rathcoole (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 3,555 verified decision-maker contacts tracked across these 100 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.

Ready to reach these companies? Verified emails and direct dials for all 100 infrastructure construction companies based in Ireland. Start with a free account, no credit card.

Download this list →

Related lists

Infrastructure construction companies by geography

Browse the directory

Browse: Companies home · All Ireland lists · All Infrastructure construction companies lists · New lists

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.