Company lists · Data refreshed September 2026

Top 25 Transportation engineering firms based in Ireland

Name: Transportation engineering firms based in Ireland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 60 companies tracked

RevenueBase identified 60 transportation engineering firms headquartered in Ireland as of September 2026 and tracks 1,887 professional contacts across them, including 815 with verified work emails. Dublin is the largest hub.

This list covers transportation engineering firms 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 19, 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 19, 2026 86% judged on-target in blind review

60Companies

1,887Contacts tracked

815Verified emails

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The 25 largest transportation engineering firms based in Ireland

Ranked by team size

Top 25 of 60 transportation engineering firms based in Ireland, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to transportation engineering firms: 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	Nicholas O'dwyer LTD	Partial evidence	Dublin, IrelandHQ checked Sep 19, 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 19, 2026
2	Pmce Consultants	Partial evidence	Dublin 6w, IrelandHQ checked Sep 19, 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 19, 2026
3	O'connor Sutton Cronin	Partial evidence	Dublin, IrelandHQ checked Sep 19, 2026	201-500	241 contacts →
	Partial evidence “OCSC is an established International Multidisciplinary Consulting Engineering & Project Management Practice.” Source: RevenueBase Database · checked Sep 19, 2026
4	Roughan & O'donovan	Partial evidence	Sandyford, IrelandHQ checked Sep 19, 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 19, 2026
5	Egis In Ireland	Partial evidence	Dundrum Road, IrelandHQ checked Sep 19, 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 19, 2026
6	Punch Consulting Engineers	Partial evidence	Limerick, IrelandHQ checked Sep 19, 2026	51-200	105 contacts →
	Partial 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 19, 2026
7	CHM Group	Indirect evidence	IrelandHQ checked Sep 19, 2026	51-200	53 contacts →
	Indirect 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 19, 2026
8	PMS Pavement Management Services LTD	Indirect evidence	Athenry, IrelandHQ checked Sep 19, 2026	11-50	35 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
9	Hanley Pepper Consulting Engineers	Indirect evidence	Dublin, IrelandHQ checked Sep 19, 2026	11-50	18 contacts →
	Indirect evidence “Hanley Pepper have been serving the industry for 30 years and have successfully completed over national and international projects.” Source: RevenueBase Database · checked Sep 19, 2026
10	Elmore Group	Indirect evidence	Dublin 10, IrelandHQ checked Sep 19, 2026	11-50	16 contacts →
	Indirect evidence “Per 1 January 2025, Elmore Group is officially renamed and fully integrated to SWARCO Ireland Ltd.” Source: RevenueBase Database · checked Sep 19, 2026
11	Kilgallen & Partners Consulting Engineers	Partial evidence	Portlaoise, IrelandHQ checked Sep 19, 2026	11-50	15 contacts →
	Partial evidence “Kilgallen and Partners perform civil and structural engineering services.” Source: RevenueBase Database · checked Sep 19, 2026
12	Lally Chartered Engineers	Partial evidence	Co. Mayo, IrelandHQ checked Sep 19, 2026	11-50	14 contacts →
	Partial evidence “Lally Chartered Engineers formerly known as Lally Engineering Services is an Engineering Consultancy Firm based in County Mayo.” Source: RevenueBase Database · checked Sep 19, 2026
13	Murphy Ireland	Partial evidence	IrelandHQ checked Sep 19, 2026	501-1,000	13 contacts →
	Partial evidence “Over the past 55 years, Murphy Ireland has built a reputation for quality and excellence, offering industry-leading services in transportation, infrastructure, energy, structural…” Source: RevenueBase Database · checked Sep 19, 2026
14	Doherty Finegan Kelly LTD	Partial evidence	Dublin, IrelandHQ checked Sep 19, 2026	11-50	11 contacts →
	Partial evidence “Doherty Finegan Kelly (DFK) Consulting Engineers are established Engineering Consultants and provide a comprehensive range of consultancy services specialising in all aspects of…” Source: RevenueBase Database · checked Sep 19, 2026
15	Furey Consulting Engineers	Indirect evidence	Naas, IrelandHQ checked Sep 19, 2026	1-10	11 contacts →
	Indirect evidence “Our range of services include Project Management, Planning Services, Building Design, Re- Zoning Consultancy, technical support to the Legal profession, general construction…” Source: RevenueBase Database · checked Sep 19, 2026
16	DCE IRL	Partial evidence	Dundalk, IrelandHQ checked Sep 19, 2026	11-50	11 contacts →
	Partial evidence “Civil, Structural & Traffic Engineering Consultancy based in Dundalk, Co.” Source: RevenueBase Database · checked Sep 19, 2026
17	Carr Consulting Engineers	Partial evidence	Ballybofey, IrelandHQ checked Sep 19, 2026	1-10	11 contacts →
	Partial evidence “CARR CONSULTING ENGINEERS Carr Consulting Engineers is a Civil & Structural engineering firm providing consultancy services to the private and public sectors.” Source: RevenueBase Database · checked Sep 19, 2026
18	Transport Insights	Indirect evidence	Dublin 2, IrelandHQ checked Sep 19, 2026	11-50	10 contacts →
	Indirect evidence “Transport Insights is an Irish based transport planning consultancy.” Source: RevenueBase Database · checked Sep 19, 2026
19	Liffey Developments	Partial evidence	Dublin, IrelandHQ checked Sep 19, 2026	11-50	10 contacts →
	Partial evidence “Since 1983, Liffey Developments has been providing a full range of civil engineering and project management services.” Source: RevenueBase Database · checked Sep 19, 2026
20	CST Group Consulting Engineers	Partial evidence	Sligo, IrelandHQ checked Sep 19, 2026	1-10	9 contacts →
	Partial evidence “Consulting Civil, Structural & Traffic Engineers with expert knowledge in the fields of - Economic, sustainable development - Traffic Engineering - Road Safety Auditing (RSA)- RTA…” Source: RevenueBase Database · checked Sep 19, 2026
21	Engenuiti	Partial evidence	Ballincollig Cork, IrelandHQ checked Sep 19, 2026	11-50	9 contacts →
	Partial evidence “Engenuiti Consulting Engineers is a full-service engineering firm with a focus on structural and civil engineering services.” Source: RevenueBase Database · checked Sep 19, 2026
22	Once Consultant Engineers	Indirect evidence	Walkinstown, IrelandHQ checked Sep 19, 2026	1-10	9 contacts →
	Indirect evidence “Consultant Engineers based in Dublin, Ireland.” Source: RevenueBase Database · checked Sep 19, 2026
23	Mcmahon Design & Management MDM	Indirect evidence	Clontarf, IrelandHQ checked Sep 19, 2026	1-10	8 contacts →
	Indirect evidence “MDM Ltd.” Source: RevenueBase Database · checked Sep 19, 2026
24	MPA Consulting Engineers	Indirect evidence	Kilkenny, IrelandHQ checked Sep 19, 2026	11-50	8 contacts →
	Indirect evidence “Martin Peters Associates (MPA) Consulting Engineers is a vibrant Multi-Disciplinary Team of Civil, Structural & Transport Engineers established in 2005 with offices in Kilkenny…” Source: RevenueBase Database · checked Sep 19, 2026
25	PHM Consulting	Partial evidence	Limerick, IrelandHQ checked Sep 19, 2026	1-10	8 contacts →
	Partial evidence “Civil and Structural Consulting Engineering Company” Source: RevenueBase Database · checked Sep 19, 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: transportation engineering firms. 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 transportation engineering firms.
Partial evidence: Its own public description names part of transportation engineering firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name transportation engineering firms. 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 60 transportation engineering firms based in Ireland

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Transportation engineering firms based in Ireland at a glance

As of Sep 19, 2026

43.2%Verified-email coverage

31.4Average contacts per company

11-50Median size (employees)

10.0%Largest-city concentration · Dublin

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 60 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 transportation engineering firms, 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 “transportation engineering firms”. 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 transportation engineering firms), 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 transportation engineering firms, 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, 815 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 19, 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 transportation engineering firms, 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 transportation engineering firms are there based in Ireland?

RevenueBase identified 60 transportation engineering firms 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?

Nicholas O'dwyer LTD, headquartered in Ireland, tops this list with the largest team on record.

Which city has the most transportation engineering firms?

Dublin leads with 6 headquartered companies, followed by Kilkenny City (3) and Cork (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 815 verified decision-maker contacts tracked across these 60 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 19, 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.