Company lists · Data refreshed September 2026

Top 25 Infrastructure consulting firms based in Ireland

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

Compiled by the RevenueBase Data Team Data refreshed Sep 3, 2026 177 companies tracked

RevenueBase identified 177 infrastructure consulting firms headquartered in Ireland as of September 2026 and tracks 3,797 professional contacts across them, including 1,611 with verified work emails and 176 with mobile numbers. Dublin is the largest hub.

This list covers infrastructure consulting 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, how directly it supports the match, and when it was last checked. Data refreshed September 3, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 Match evidence on every row Refreshed Sep 3, 2026 86% judged on-target in blind review

177Companies

3,797Contacts tracked

1,611Verified emails

176Mobile numbers

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The 25 largest infrastructure consulting firms based in Ireland

Ranked by team size

Top 25 of 177 infrastructure consulting firms based in Ireland, ranked by team size, largest first. Data refreshed Sep 3, 2026. Evidence rates how directly each company's own description names infrastructure consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	CoffeyIndirect evidence	Athenry, IrelandHQ checked Sep 3, 2026	201-500	323
	“Coffey is a family-owned civil engineering-led company operating in every major construction sector throughout Ireland and the UK.” Source: company website · checked Sep 3, 2026
2	O'connor Sutton CroninPartial evidence	Dublin, IrelandHQ checked Sep 3, 2026	201-500	236
	“OCSC is an established International Multidisciplinary Consulting Engineering & Project Management Practice.” Source: company website · checked Sep 3, 2026
3	Vision ConsultingIndirect evidence	Dublin, IrelandHQ checked Sep 3, 2026	n/a	202
	“At VISION, we deliver transformation by working at the human foundation first.” Source: company website · checked Sep 3, 2026
4	Dbfl Consulting Engineers LTDPartial evidence	Dublin, IrelandHQ checked Sep 3, 2026	51-200	181
	“DBFL is a fully Irish-owned firm specializing in the planning, engineering design and delivery within the property, infrastructure, environmental & energy sectors.” Source: company website · checked Sep 3, 2026
5	MWPPartial evidence	Blackrock, IrelandHQ checked Sep 3, 2026	51-200	160
	“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: company website · checked Sep 3, 2026
6	Egis In IrelandPartial evidence	Dundrum Road, IrelandHQ checked Sep 3, 2026	501-1,000	144
	“Egis is a leading global architectural, consulting, construction engineering, operations and mobility services firm.” Source: company website · checked Sep 3, 2026
7	Secto Services LimitedPartial evidence	Maynooth, IrelandHQ checked Sep 3, 2026	201-500	134
	“Delivering Successful Engineering and Technical Services Secto Services is a fast growing Infrastructure build and engineering solutions company where customer service and the…” Source: company website · checked Sep 3, 2026
8	Ryan Hanley, NOW StantecIndirect evidence	Galway, IrelandHQ checked Sep 3, 2026	51-200	116
	“Ryan Hanley is a leading Engineering and Environmental Consultancy.” Source: company website · checked Sep 3, 2026
9	Fehily Timoney And CompanyPartial evidence	Cork, IrelandHQ checked Sep 3, 2026	51-200	115
	“Fehily Timoney and Company is a Irish civil and environmental, engineering, scientific and planning consultancy specialising in the areas of Sustainable Infrastructure, Planning…” Source: company website · checked Sep 3, 2026
10	Punch Consulting EngineersPartial evidence	Limerick, IrelandHQ checked Sep 3, 2026	51-200	109
	“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: company website · checked Sep 3, 2026
11	Waterman Moylan Consulting EngineersPartial evidence	IrelandHQ checked Sep 3, 2026	51-200	102
	“Waterman Moylan is a leading engineering and environmental consultancy providing specialist services to our clients in the property, infrastructure and environment markets in…” Source: company website · checked Sep 3, 2026
12	Clifton Scannell Emerson AssociatesPartial evidence	IrelandHQ checked Sep 3, 2026	51-200	92
	“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: company website · checked Sep 3, 2026
13	Barrett Mahony Consulting EngineersPartial evidence	Dublin 2, IrelandHQ checked Sep 3, 2026	51-200	79
	“Barrett Mahony Consulting Engineers is an established civil and structural engineering consultancy specialising in all aspects of civil and structural engineering and project…” Source: company website · checked Sep 3, 2026
14	Mitchell McdermottIndirect evidence	Dublin, IrelandHQ checked Sep 3, 2026	51-200	75
	“Mitchell McDermott is an independent firm of Construction Consultants founded by Paul Mitchell and Anthony McDermott in 2015.” Source: company website · checked Sep 3, 2026
15	MCA ArchitectsIndirect evidence	Dublin, IrelandHQ checked Sep 3, 2026	51-200	71
	“MCA Architects and TTSP HWP have joined forces to form a fully integrated, pan-European leader in data centre design, engineering, and project delivery.” Source: company website · checked Sep 3, 2026
16	Varming Consulting Engineers LTDIndirect evidence	Dundrum, IrelandHQ checked Sep 3, 2026	11-50	57
	“At Varming, we’re all about cutting-edge design and meticulous oversight of mechanical and electrical services, whether it’s for brand-new constructions or revitalizing existing…” Source: company website · checked Sep 3, 2026
17	PMS Pavement Management Services LTDIndirect evidence	Athenry, IrelandHQ checked Sep 3, 2026	11-50	35
	Source: company website · checked Sep 3, 2026
18	MMA Consulting EngineersPartial evidence	IrelandHQ checked Sep 3, 2026	11-50	34
	“MMA Consulting Engineers is committed to providing integrated engineering solutions and has grown to become one of the most recognized and sought-after mechanical and electrical…” Source: company website · checked Sep 3, 2026
19	Maveric Contractors LTDIndirect evidence	Galway, IrelandHQ checked Sep 3, 2026	51-200	33
	“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: company website · checked Sep 3, 2026
20	Hayes Higgins PartnershipPartial evidence	Kilkenny, IrelandHQ checked Sep 3, 2026	11-50	26
	“Hayes Higgins Partnership is a multidisciplinary consulting engineering practice employing 38 staff in Dublin, Kilkenny & London.” Source: company website · checked Sep 3, 2026
21	Allied Consultant EngineeringIndirect evidence	Dundrum, IrelandHQ checked Sep 3, 2026	1-10	25
	“Allied Consultant Engineering provides specialist structural engineering services to clients in Ireland and overseas.” Source: company website · checked Sep 3, 2026
22	Clandillon Civil Consulting LTDIndirect evidence	Newbridge, IrelandHQ checked Sep 3, 2026	11-50	24
	“is a civil engineering consultancy, which is dedicated to providing exceptional service to main Contractors in the execution of civil engineering projects.” Source: company website · checked Sep 3, 2026
23	DJF Engineering Services LTDPartial evidence	IrelandHQ checked Sep 3, 2026	11-50	23
	“PROJECT MANANGERS & CONSULTING ENGINEERS Project Execution, from Concept to Completion ~ WHAT WE DO ~ Our practice has maintained a reputation for high quality Project Management…” Source: company website · checked Sep 3, 2026
24	OMCIndirect evidence	Galway, IrelandHQ checked Sep 3, 2026	11-50	22
	“OMC Group, we provide a seamless, multidisciplinary consultancy service, specialising in engineering, design, and compliance solutions for commercial projects.” Source: company website · checked Sep 3, 2026
25	Downes AssociatesIndirect evidence	Dublin, IrelandHQ checked Sep 3, 2026	11-50	21
	“Downes Associates is a Structural and Civil Engineering Consultancy specialising in the delivery of quality civil and structural design solutions.” Source: company website · checked Sep 3, 2026

Showing 25 of 177 infrastructure consulting firms based in Ireland

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Infrastructure consulting firms based in Ireland at a glance

As of Sep 3, 2026

1-10Median size (employees)

DublinLargest hub · 37 HQs

176Contacts with mobile numbers

Sep 3, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Verified emails by last verification

0–30

31–60

126

61–90

936

90–180

549

180+

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 consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 consulting firms”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among infrastructure consulting 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 an evidence 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, 1,611 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 3, 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.

Infrastructure consulting firms by metro

Infrastructure consulting firms in Dublin37

Frequently asked

How many infrastructure consulting firms are there based in Ireland?

RevenueBase identified 177 infrastructure consulting 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?

Coffey, headquartered in Enfield, tops this list with the largest team on record.

Which city has the most infrastructure consulting firms?

Dublin leads with 37 headquartered companies, followed by Cork (10) and Galway (5).

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 1,611 verified decision-maker contacts tracked across these 177 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 3, 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 SmartSearch, 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.