Company lists · Data refreshed September 2026

Top 23 Critical facilities contractors based in Ireland

Name: Critical facilities contractors based in Ireland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 61 companies tracked

RevenueBase identified 61 critical facilities contractors headquartered in Ireland as of September 2026 and tracks 18,578 professional contacts across them, including 7,082 with verified work emails. Dublin is the largest hub.

This list covers critical facilities contractors 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 16, 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 16, 2026 86% judged on-target in blind review

61Companies

18,578Contacts tracked

7,082Verified emails

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

The 23 largest critical facilities contractors based in Ireland

Ranked by team size

Top 23 of 61 critical facilities contractors based in Ireland, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to critical facilities contractors: 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	PM Group	Indirect evidence	Dublin, IrelandHQ checked Sep 16, 2026	1,001-5,000	3,672 contacts →
	Indirect evidence “At PM Group, our vision is to enable a world where science and technology transform lives.” Source: RevenueBase Database · checked Sep 16, 2026
2	Mercury	Indirect evidence	Dublin, IrelandHQ checked Sep 16, 2026	1,001-5,000	2,418 contacts →
	Indirect evidence “Mercury is the European leader in construction solutions.” Source: RevenueBase Database · checked Sep 16, 2026
3	Jones Engineering	Indirect evidence	Dublin 4, IrelandHQ checked Sep 16, 2026	1,001-5,000	2,415 contacts →
	Indirect evidence “Jones Engineering is a multi-disciplined engineering contracting company, offering the complete range of engineering and building services installations.” Source: RevenueBase Database · checked Sep 16, 2026
4	Kirby Group Engineering	Partial evidence	Limerick, IrelandHQ checked Sep 16, 2026	1,001-5,000	1,486 contacts →
	Partial evidence “Founded in 1964, Kirby is a leading Mechanical and Electrical engineering contractor with operations in Ireland, the UK, mainland Europe and South Africa.” Source: RevenueBase Database · checked Sep 16, 2026
5	Designer Group	Partial evidence	Dublin, IrelandHQ checked Sep 16, 2026	1,001-5,000	911 contacts →
	Partial 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 16, 2026
6	Ward And Burke	Indirect evidence	Kilcolgan, IrelandHQ checked Sep 16, 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 16, 2026
7	WALLS	Indirect evidence	Malahide Road, IrelandHQ checked Sep 16, 2026	501-1,000	450 contacts →
	Indirect evidence “Walls Construction is one of Ireland’s leading construction companies.” Source: RevenueBase Database · checked Sep 16, 2026
8	Ardmac	Indirect evidence	Swords, IrelandHQ checked Sep 16, 2026	201-500	404 contacts →
	Indirect evidence “We are an award winning international construction specialist that delivers complex high value workspaces and technical environments.” Source: RevenueBase Database · checked Sep 16, 2026
9	Coffey	Indirect evidence	Athenry, IrelandHQ checked Sep 16, 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 16, 2026
10	ORS	Indirect evidence	Dublin, IrelandHQ checked Sep 16, 2026	51-200	270 contacts →
	Indirect evidence “Since 1991, ORS has led the way in anticipating and responding to diverse client requirements in the construction industry.” Source: RevenueBase Database · checked Sep 16, 2026
11	Elliott Group	Indirect evidence	Cavan, IrelandHQ checked Sep 16, 2026	201-500	239 contacts →
	Indirect evidence “Construction has always been a pivotal part of the Elliott family.” Source: RevenueBase Database · checked Sep 16, 2026
12	Sensori	Strong evidence	Dublin, IrelandHQ checked Sep 16, 2026	201-500	223 contacts →
	Strong evidence “As a global leader in mission critical Data Centres, MEP services and Facilities Management, Sensori brings unmatched technical expertise to the design and construction of the…” Source: RevenueBase Database · checked Sep 16, 2026
13	Tritech Engineering	Indirect evidence	Dublin 22, IrelandHQ checked Sep 16, 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 16, 2026
14	Secto Services Limited	Indirect evidence	Maynooth, IrelandHQ checked Sep 16, 2026	201-500	136 contacts →
	Indirect 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 16, 2026
15	Vision Contracting	Indirect evidence	Cork, IrelandHQ checked Sep 16, 2026	51-200	132 contacts →
	Indirect evidence “Vision Contracting Ltd is an Irish based construction services company and is a leading builder in a number of niche market segments.” Source: RevenueBase Database · checked Sep 16, 2026
16	Whitewater Group	Indirect evidence	Naas, IrelandHQ checked Sep 16, 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 16, 2026
17	Cunningham	Indirect evidence	Dublin 15, IrelandHQ checked Sep 16, 2026	201-500	122 contacts →
	Indirect evidence “Founded in 2006, Cunningham are one of Europe & the UK’s leading construction companies.” Source: RevenueBase Database · checked Sep 16, 2026
18	Siac Construction LTD	Indirect evidence	Dublin, IrelandHQ checked Sep 16, 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 16, 2026
19	DCT	Indirect evidence	Ballycoolen, IrelandHQ checked Sep 16, 2026	51-200	66 contacts →
	Indirect evidence “DCT empowers your team to be more productive with less effort.” Source: RevenueBase Database · checked Sep 16, 2026
20	Source Civil LTD	Indirect evidence	Donegal Town, IrelandHQ checked Sep 16, 2026	51-200	59 contacts →
	Indirect evidence “Source Civil Ltd is a trusted leader in civil engineering, combining over 20 years of expertise with an unwavering commitment to innovation, integrity, safety, and quality.” Source: RevenueBase Database · checked Sep 16, 2026
21	Kilcawley Construction	Indirect evidence	Sligo, IrelandHQ checked Sep 16, 2026	51-200	56 contacts →
	Indirect evidence “Kilcawley Construction provide comprehensive construction services in a wide range of sectors including commercial, educational, pharmaceutical, healthcare, hospitality…” Source: RevenueBase Database · checked Sep 16, 2026
22	Cloncad Limited	Partial evidence	Kildare, IrelandHQ checked Sep 16, 2026	51-200	43 contacts →
	Partial evidence “Established in 2006, Cloncad is a 100% Irish owned contractor headquartered in Moyvalley, Kildare.” Source: RevenueBase Database · checked Sep 16, 2026
23	Maveric Contractors LTD	Partial evidence	Galway, IrelandHQ checked Sep 16, 2026	51-200	34 contacts →
	Partial 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 16, 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: critical facilities contractors. 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 critical facilities contractors.
Partial evidence: Its own public description names part of critical facilities contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name critical facilities contractors. 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 23 of 61 critical facilities contractors based in Ireland

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 7,082 reachable decision-makers.

Free signup · no credit card

View the full list →

Critical facilities contractors based in Ireland at a glance

As of Sep 16, 2026

38.1%Verified-email coverage

304.6Average contacts per company

51-200Median size (employees)

14.8%Largest-city concentration · Dublin

Sep 16, 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 61 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 critical facilities contractors, 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 “critical facilities contractors”. 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 critical facilities contractors), 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 critical facilities contractors, 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, 7,082 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 16, 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 critical facilities contractors, 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 critical facilities contractors are there based in Ireland?

RevenueBase identified 61 critical facilities contractors 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?

PM Group, headquartered in Ireland, tops this list with the largest team on record.

Which city has the most critical facilities contractors?

Dublin leads with 9 headquartered companies, followed by Citywest Business Campus (2) and Ireland (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 7,082 verified decision-maker contacts tracked across these 61 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 16, 2026.

Ready to reach these companies? Verified emails and direct dials for all 61 critical facilities contractors based in Ireland. Start with a free account, no credit card.

Download this list →

Related lists

Critical facilities contractors by geography

Browse the directory

Browse: Companies home · All Ireland lists · All Critical facilities contractors 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.