Company lists · Data refreshed September 2026

Top 24 Engineering consultancies based in Ireland

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

Compiled by the RevenueBase Data Team Data refreshed Sep 24, 2026 946 companies tracked

RevenueBase identified 946 engineering consultancies headquartered in Ireland as of September 2026 and tracks 30,330 professional contacts across them, including 11,936 with verified work emails and 1,334 with mobile numbers. Dublin is the largest hub.

This list covers engineering consultancies 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 24, 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 24, 2026 86% judged on-target in blind review

946Companies

30,330Contacts tracked

11,936Verified emails

1,334Mobile numbers

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

The 24 largest engineering consultancies based in Ireland

Ranked by team size

Top 24 of 946 engineering consultancies based in Ireland, ranked by team size, largest first. Data refreshed Sep 24, 2026. RevenueBase Smart Search rates how each company's information relates to engineering consultancies: 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	Indirect evidence	Dublin, IrelandHQ checked Sep 24, 2026	1,001-5,000	2,418 contacts →
	Indirect evidence “Mercury is the European leader in construction solutions.” Source: RevenueBase Database · checked Sep 24, 2026
2	Jones Engineering	Partial evidence	Dublin 4, IrelandHQ checked Sep 24, 2026	1,001-5,000	2,415 contacts →
	Partial 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 24, 2026
3	Kirby Group Engineering	Partial evidence	Limerick, IrelandHQ checked Sep 24, 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 24, 2026
4	Dornan	Partial evidence	Cork, IrelandHQ checked Sep 24, 2026	501-1,000	1,257 contacts →
	Partial evidence “Dornan Engineering concentrates on a market where quality is appreciated.” Source: RevenueBase Database · checked Sep 24, 2026
5	Designer Group	Partial evidence	Dublin, IrelandHQ checked Sep 24, 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 24, 2026
6	Ward And Burke	Partial evidence	Kilcolgan, IrelandHQ checked Sep 24, 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 24, 2026
7	Specialist Technical Services STS Group	Partial evidence	Old Kilmeaden Road, IrelandHQ checked Sep 24, 2026	1,001-5,000	482 contacts →
	Partial evidence “STS Group, is dedicated to being the leading and most cost-efficient provider of electrical engineering, instrumentation, design and commissioning services across Ireland, UK…” Source: RevenueBase Database · checked Sep 24, 2026
8	KTL	Partial evidence	Naas, IrelandHQ checked Sep 24, 2026	501-1,000	429 contacts →
	Partial evidence “For over 27 years, KTL has been a leading provider of fast, effective, and reliable engineering services across the professional services, telecommunications, and power sectors.” Source: RevenueBase Database · checked Sep 24, 2026
9	Shanahan Engineering	Partial evidence	Dun Laoghaire, IrelandHQ checked Sep 24, 2026	501-1,000	400 contacts →
	Partial evidence “Shanahan Engineering is a leading global energy services company.” Source: RevenueBase Database · checked Sep 24, 2026
10	Coffey	Partial evidence	Athenry, IrelandHQ checked Sep 24, 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 24, 2026
11	Nicholas O'dwyer LTD	Partial evidence	Dublin, IrelandHQ checked Sep 24, 2026	201-500	284 contacts →
	Partial 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 24, 2026
12	ORS	Indirect evidence	Dublin, IrelandHQ checked Sep 24, 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 24, 2026
13	Pmce Consultants	Partial evidence	Dublin 6w, IrelandHQ checked Sep 24, 2026	n/a	261 contacts →
	Partial evidence “PMCE is a Consulting Engineering practice offering services to private and public clients in the areas of Road Safety Engineering (inclduding Road Safety Audits and Road Safety…” Source: RevenueBase Database · checked Sep 24, 2026
14	O'connor Sutton Cronin	Partial evidence	Dublin, IrelandHQ checked Sep 24, 2026	201-500	241 contacts →
	Partial evidence “OCSC is an established International Multidisciplinary Consulting Engineering & Project Management Practice.” Source: RevenueBase Database · checked Sep 24, 2026
15	Roughan & O'donovan	Partial evidence	Sandyford, IrelandHQ checked Sep 24, 2026	201-500	227 contacts →
	Partial evidence “Roughan and O’Donovan (ROD) is a leading civil, environmental and structural engineering consultancy.” Source: RevenueBase Database · checked Sep 24, 2026
16	MKO	Indirect evidence	Galway, IrelandHQ checked Sep 24, 2026	201-500	210 contacts →
	Indirect evidence “MKO is Ireland’s largest Planning and Environmental consultancy.” Source: RevenueBase Database · checked Sep 24, 2026
17	Roadbridge LTD	Partial evidence	Limerick, IrelandHQ checked Sep 24, 2026	n/a	199 contacts →
	Partial 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 24, 2026
18	Dbfl Consulting Engineers LTD	Partial evidence	Dublin, IrelandHQ checked Sep 24, 2026	51-200	178 contacts →
	Partial 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 24, 2026
19	Fingleton White	Partial evidence	Portlaoise, IrelandHQ checked Sep 24, 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 24, 2026
20	Tritech Engineering	Partial evidence	Dublin 22, IrelandHQ checked Sep 24, 2026	201-500	173 contacts →
	Partial 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 24, 2026
21	KSN	Indirect evidence	Dublin 4, IrelandHQ checked Sep 24, 2026	51-200	165 contacts →
	Indirect evidence “KSN is an independent Irish owned construction consultancy founded over 35 years ago.” Source: RevenueBase Database · checked Sep 24, 2026
22	MWP	Partial evidence	Blackrock, IrelandHQ checked Sep 24, 2026	51-200	160 contacts →
	Partial 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 24, 2026
23	Egis In Ireland	Partial evidence	Dundrum Road, IrelandHQ checked Sep 24, 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 24, 2026
24	Secto Services Limited	Partial evidence	Maynooth, IrelandHQ checked Sep 24, 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 24, 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: engineering consultancies. 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 engineering consultancies.
Partial evidence: Its own public description names part of engineering consultancies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name engineering consultancies. 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 946 engineering consultancies based in Ireland

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 11,936 reachable decision-makers.

Free signup · no credit card

View the full list →

Engineering consultancies based in Ireland at a glance

As of Sep 24, 2026

39.4%Verified-email coverage

4.4%Mobile-number coverage

32.1Average contacts per company

1-10Median size (employees)

16.9%Largest-city concentration · Dublin

Sep 24, 2026Page data refreshed

Companies by employee count

1-10

494

11-50

290

51-200

118

201-500

501-1,000

1,001-5,000

10001+

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 26.0d

9,1160–30

2,63531–60

14261–90

690–180

37180+

Company record updated

Median 79.0d

00–30

7,49931–60

13,47661–90

7,82690–180

1,529180+

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 engineering consultancies, 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 “engineering consultancies”. 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 engineering consultancies), 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 engineering consultancies, 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, 11,936 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 24, 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.

Engineering consultancies by metro

Engineering consultancies in Dublin160
Engineering consultancies in Cork48

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 engineering consultancies, 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 engineering consultancies are there based in Ireland?

RevenueBase identified 946 engineering consultancies 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 engineering consultancies?

Dublin leads with 160 headquartered companies, followed by Cork (48) and Limerick (22).

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 11,936 verified decision-maker contacts tracked across these 946 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 24, 2026.

Ready to reach these companies? Verified emails and direct dials for all 946 engineering consultancies based in Ireland. Start with a free account, no credit card.

Download this list →

Related lists

Engineering consultancies by geography

Browse the directory

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.