Company lists · Data refreshed September 2026

Top 25 Infrastructure design companies based in Ireland

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

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 144 companies tracked

RevenueBase identified 144 infrastructure design companies headquartered in Ireland as of September 2026 and tracks 6,697 professional contacts across them, including 3,171 with verified work emails. Dublin is the largest hub.

This list covers infrastructure design 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 20, 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 20, 2026 86% judged on-target in blind review

144Companies

6,697Contacts tracked

3,171Verified emails

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The 25 largest infrastructure design companies based in Ireland

Ranked by team size

Top 25 of 144 infrastructure design companies based in Ireland, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to infrastructure design 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	Ward And Burke	Indirect evidence	Kilcolgan, IrelandHQ checked Sep 20, 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 20, 2026
2	Coffey	Indirect evidence	Athenry, IrelandHQ checked Sep 20, 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 20, 2026
3	Nicholas O'dwyer LTD	Indirect evidence	Dublin, IrelandHQ checked Sep 20, 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 20, 2026
4	O'connor Sutton Cronin	Indirect evidence	Dublin, IrelandHQ checked Sep 20, 2026	201-500	241 contacts →
	Indirect evidence “OCSC is an established International Multidisciplinary Consulting Engineering & Project Management Practice.” Source: RevenueBase Database · checked Sep 20, 2026
5	Roughan & O'donovan	Indirect evidence	Sandyford, IrelandHQ checked Sep 20, 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 20, 2026
6	Roadbridge LTD	Indirect evidence	Limerick, IrelandHQ checked Sep 20, 2026	n/a	199 contacts →
	Indirect evidence “Founded in 1967, and operating in Ireland, United Kingdom, and the Middle East, Roadbridge is a leader in Civil Engineering.” Source: RevenueBase Database · checked Sep 20, 2026
7	Dbfl Consulting Engineers LTD	Strong evidence	Dublin, IrelandHQ checked Sep 20, 2026	51-200	178 contacts →
	Strong evidence “DBFL is a fully Irish-owned firm specializing in the planning, engineering design and delivery within the property, infrastructure, environmental & energy sectors.” Source: RevenueBase Database · checked Sep 20, 2026
8	Fingleton White	Indirect evidence	Portlaoise, IrelandHQ checked Sep 20, 2026	201-500	175 contacts →
	Indirect 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 20, 2026
9	MWP	Indirect evidence	Blackrock, IrelandHQ checked Sep 20, 2026	51-200	160 contacts →
	Indirect evidence “MWP is a multi-disciplinary Engineering and Environmental Consulting Practice providing a first class service to its clients since it was founded in 1967.” Source: RevenueBase Database · checked Sep 20, 2026
10	Egis In Ireland	Indirect evidence	Dundrum Road, IrelandHQ checked Sep 20, 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 20, 2026
11	Secto Services Limited	Partial evidence	Maynooth, IrelandHQ checked Sep 20, 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 20, 2026
12	Whitewater Group	Indirect evidence	Naas, IrelandHQ checked Sep 20, 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 20, 2026
13	Fehily Timoney And Company	Partial evidence	Cork, IrelandHQ checked Sep 20, 2026	51-200	116 contacts →
	Partial evidence “Fehily Timoney and Company is a Irish civil and environmental, engineering, scientific and planning consultancy specialising in the areas of Sustainable Infrastructure, Planning…” Source: RevenueBase Database · checked Sep 20, 2026
14	Punch Consulting Engineers	Indirect evidence	Limerick, IrelandHQ checked Sep 20, 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 20, 2026
15	Waterman Moylan Consulting Engineers	Partial evidence	Dublin, IrelandHQ checked Sep 20, 2026	51-200	99 contacts →
	Partial evidence “Waterman Moylan is a leading engineering and environmental consultancy providing specialist services to our clients in the property, infrastructure and environment markets in…” Source: RevenueBase Database · checked Sep 20, 2026
16	Ryan Hanley, NOW Stantec	Indirect evidence	Galway, IrelandHQ checked Sep 20, 2026	51-200	98 contacts →
	Indirect evidence “Ryan Hanley is a leading Engineering and Environmental Consultancy.” Source: RevenueBase Database · checked Sep 20, 2026
17	Clifton Scannell Emerson Associates	Indirect evidence	Dun Laoghaire, IrelandHQ checked Sep 20, 2026	51-200	92 contacts →
	Indirect evidence “Clifton Scannell Emerson Associates Clifton Scannell Emerson Associates (CSEA) are an Irish firm of Civil and Structural Consulting Engineers, with over seventy years’ experience…” Source: RevenueBase Database · checked Sep 20, 2026
18	Jennings O'donovan & Partners	Indirect evidence	Sligo, IrelandHQ checked Sep 20, 2026	51-200	79 contacts →
	Indirect evidence “Jennings O’Donovan is a multidisciplinary consulting engineering firm specialising in renewable energy, water supply, wastewater treatment and in the provision of planning and…” Source: RevenueBase Database · checked Sep 20, 2026
19	Barrett Mahony Consulting Engineers	Indirect evidence	Dublin 2, IrelandHQ checked Sep 20, 2026	51-200	79 contacts →
	Indirect evidence “Barrett Mahony Consulting Engineers is an established civil and structural engineering consultancy specialising in all aspects of civil and structural engineering and project…” Source: RevenueBase Database · checked Sep 20, 2026
20	Tandem Project Management LTD	Partial evidence	Blackrock, IrelandHQ checked Sep 20, 2026	51-200	65 contacts →
	Partial evidence “Tandem is an engineering consultancy specialising in project management, multi-disciplined engineering design, construction management, energy & carbon reduction, EHS and talent…” Source: RevenueBase Database · checked Sep 20, 2026
21	Source Civil LTD	Indirect evidence	Donegal Town, IrelandHQ checked Sep 20, 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 20, 2026
22	Garland	Indirect evidence	Rathmines, IrelandHQ checked Sep 20, 2026	51-200	50 contacts →
	Indirect evidence “GARLAND is an international consulting engineering firm.” Source: RevenueBase Database · checked Sep 20, 2026
23	Cleantech Civils	Indirect evidence	Co Cavan, IrelandHQ checked Sep 20, 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 20, 2026
24	Eireng Consulting Engineers LTD	Partial evidence	Blackrock, IrelandHQ checked Sep 20, 2026	11-50	38 contacts →
	Partial evidence “EirEng Consulting Engineers is a firm of highly experienced and motivated Civil and Structural Design Engineers with offices in Ireland and the UK, dedicated to providing cutting…” Source: RevenueBase Database · checked Sep 20, 2026
25	PMS Pavement Management Services LTD	Indirect evidence	Athenry, IrelandHQ checked Sep 20, 2026	11-50	35 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 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 design 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 design companies.
Partial evidence: Its own public description names part of infrastructure design companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name infrastructure design 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 144 infrastructure design companies based in Ireland

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Infrastructure design companies based in Ireland at a glance

As of Sep 20, 2026

47.3%Verified-email coverage

46.5Average contacts per company

11-50Median size (employees)

13.9%Largest-city concentration · Dublin

Sep 20, 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 144 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 design 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 design 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 design 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 design 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, 3,171 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 20, 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 design 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 design companies are there based in Ireland?

RevenueBase identified 144 infrastructure design 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?

Ward And Burke, headquartered in Kilcolgan Kilcolgan, tops this list with the largest team on record.

Which city has the most infrastructure design companies?

Dublin leads with 20 headquartered companies, followed by Limerick (5) and Cork (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 3,171 verified decision-maker contacts tracked across these 144 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 20, 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.