Company lists · Data refreshed September 2026

Top 25 Infrastructure planning consultants based in Ireland

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

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 109 companies tracked

RevenueBase identified 109 infrastructure planning consultants headquartered in Ireland as of September 2026 and tracks 4,729 professional contacts across them, including 2,541 with verified work emails. Dublin is the largest hub.

This list covers infrastructure planning consultants 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

109Companies

4,729Contacts tracked

2,541Verified emails

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The 25 largest infrastructure planning consultants based in Ireland

Ranked by team size

Top 25 of 109 infrastructure planning consultants 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 planning consultants: 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	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
2	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
3	Roughan & O'donovan	Partial evidence	Sandyford, IrelandHQ checked Sep 20, 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 20, 2026
4	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
5	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
6	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
7	Fehily Timoney And Company	Strong evidence	Cork, IrelandHQ checked Sep 20, 2026	51-200	116 contacts →
	Strong 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
8	Punch Consulting Engineers	Partial evidence	Limerick, IrelandHQ checked Sep 20, 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 20, 2026
9	Waterman Moylan Consulting Engineers	Strong evidence	Dublin, IrelandHQ checked Sep 20, 2026	51-200	99 contacts →
	Strong 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
10	Barrett Mahony Consulting Engineers	Partial evidence	Dublin 2, IrelandHQ checked Sep 20, 2026	51-200	79 contacts →
	Partial 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
11	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
12	Mccutcheon Halley Chartered Planning Consultants	Strong evidence	Ballincollig, IrelandHQ checked Sep 20, 2026	11-50	40 contacts →
	Strong evidence “McCutcheon Halley is a leading planning consultancy with an unparalleled reputation for expertise, experience and quality to clients in the public, private and semi-state sectors.” Source: RevenueBase Database · checked Sep 20, 2026
13	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
14	JSA Planning	Partial evidence	Dublin 2, IrelandHQ checked Sep 20, 2026	11-50	33 contacts →
	Partial evidence “JSA Planning began as John Spain Associates.” Source: RevenueBase Database · checked Sep 20, 2026
15	VHA	Indirect evidence	Sligo, IrelandHQ checked Sep 20, 2026	11-50	25 contacts →
	Indirect evidence “Since the founding of VHA Architects in 1986 by Vincent Hannon, we have been privileged to form long-term relationships with many of the nation’s most distinguished developers…” Source: RevenueBase Database · checked Sep 20, 2026
16	Outform Consulting L B Corp Certified	Indirect evidence	Dublin, IrelandHQ checked Sep 20, 2026	11-50	24 contacts →
	Indirect evidence “At OutForm, we work with great businesses to make them better.” Source: RevenueBase Database · checked Sep 20, 2026
17	Clandillon Civil Consulting LTD	Partial evidence	Newbridge, IrelandHQ checked Sep 20, 2026	11-50	24 contacts →
	Partial evidence “is a civil engineering consultancy, which is dedicated to providing exceptional service to main Contractors in the execution of civil engineering projects.” Source: RevenueBase Database · checked Sep 20, 2026
18	Cdga Consultants	Indirect evidence	Cork, IrelandHQ checked Sep 20, 2026	11-50	16 contacts →
	Indirect evidence “CDGA was founded in 1997.” Source: RevenueBase Database · checked Sep 20, 2026
19	Mcardle Doyle	Partial evidence	Dundalk, IrelandHQ checked Sep 20, 2026	11-50	15 contacts →
	Partial evidence “Civil & Structural Engineering Consultancy” Source: RevenueBase Database · checked Sep 20, 2026
20	Doherty Finegan Kelly LTD	Partial evidence	Dublin, IrelandHQ checked Sep 20, 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 20, 2026
21	Furey Consulting Engineers	Strong evidence	Naas, IrelandHQ checked Sep 20, 2026	1-10	11 contacts →
	Strong 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 20, 2026
22	Hughes Planning And Development Consultants	Strong evidence	Dublin 2, IrelandHQ checked Sep 20, 2026	11-50	11 contacts →
	Strong evidence “Hughes Planning and Development Consultants, based at 85 Merrion Square, Dublin 2, was established in 2012 and provides a high quality national planning service.” Source: RevenueBase Database · checked Sep 20, 2026
23	DCE IRL	Partial evidence	Dundalk, IrelandHQ checked Sep 20, 2026	11-50	11 contacts →
	Partial evidence “Civil, Structural & Traffic Engineering Consultancy based in Dundalk, Co.” Source: RevenueBase Database · checked Sep 20, 2026
24	Carr Consulting Engineers	Partial evidence	Ballybofey, IrelandHQ checked Sep 20, 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 20, 2026
25	Byrne Ó Cléirigh	Partial evidence	Dublin 2, IrelandHQ checked Sep 20, 2026	11-50	10 contacts →
	Partial evidence “Byrne Ó Cléirigh is a firm of professional engineers and management consultants.” 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 planning consultants. 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 planning consultants.
Partial evidence: Its own public description names part of infrastructure planning consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name infrastructure planning consultants. 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 109 infrastructure planning consultants based in Ireland

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Infrastructure planning consultants based in Ireland at a glance

As of Sep 20, 2026

53.7%Verified-email coverage

43.4Average contacts per company

11-50Median size (employees)

18.3%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

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 109 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 planning consultants, 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 planning consultants”. 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 planning consultants), 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 planning consultants, 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, 2,541 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 planning consultants, 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 planning consultants are there based in Ireland?

RevenueBase identified 109 infrastructure planning consultants 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 infrastructure planning consultants?

Dublin leads with 20 headquartered companies, followed by Cork (4) and Limerick (3).

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 2,541 verified decision-maker contacts tracked across these 109 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.