Company lists · Data refreshed September 2026

Top 25 Public sector consulting based in Ireland

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

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 70 companies tracked

RevenueBase identified 70 public sector consulting headquartered in Ireland as of September 2026 and tracks 1,321 professional contacts across them, including 633 with verified work emails. Dublin is the largest hub.

This list covers public sector consulting 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

70Companies

1,321Contacts tracked

633Verified emails

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The 25 largest public sector consulting based in Ireland

Ranked by team size

Top 25 of 70 public sector consulting 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 public sector consulting: 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	Strong evidence	Dublin, IrelandHQ checked Sep 20, 2026	201-500	284 contacts →
	Strong 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	Partial evidence	Dublin, IrelandHQ checked Sep 20, 2026	201-500	241 contacts →
	Partial evidence “OCSC is an established International Multidisciplinary Consulting Engineering & Project Management Practice.” Source: RevenueBase Database · checked Sep 20, 2026
3	Vision Consulting	Indirect evidence	Dublin, IrelandHQ checked Sep 20, 2026	n/a	201 contacts →
	Indirect evidence “At VISION, we deliver transformation by working at the human foundation first.” Source: RevenueBase Database · checked Sep 20, 2026
4	MWP	Partial evidence	Blackrock, IrelandHQ checked Sep 20, 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 20, 2026
5	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
6	Garland	Partial evidence	Rathmines, IrelandHQ checked Sep 20, 2026	51-200	50 contacts →
	Partial evidence “GARLAND is an international consulting engineering firm.” Source: RevenueBase Database · checked Sep 20, 2026
7	DJF Engineering Services LTD	Partial evidence	Cork, IrelandHQ checked Sep 20, 2026	11-50	23 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 20, 2026
8	Enviroguide A DNV Company	Partial evidence	Dublin, IrelandHQ checked Sep 20, 2026	11-50	22 contacts →
	Partial evidence “Enviroguide Consulting has an established reputation for delivering environmental and sustainability consultancy services including ecology, environmental impact assessment…” Source: RevenueBase Database · checked Sep 20, 2026
9	OSL Butler Consulting Engineers	Partial evidence	Cork, IrelandHQ checked Sep 20, 2026	11-50	17 contacts →
	Partial evidence “We provide consultancy services to a broad span of clients, large and small, involving projects across all sectors of the construction industry.” Source: RevenueBase Database · checked Sep 20, 2026
10	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
11	Greenville Procurement	Partial evidence	Harold's Cross, IrelandHQ checked Sep 20, 2026	11-50	14 contacts →
	Partial evidence “Greenville Procurement offers expert consultancy and training services relating to EU and national public procurement.” Source: RevenueBase Database · checked Sep 20, 2026
12	Envecon Decision Support LTD	Indirect evidence	Dublin, IrelandHQ checked Sep 20, 2026	11-50	14 contacts →
	Indirect evidence “EnvEcon Decision Support is a leading provider of government and business decision support services having worked for blue-chip clients across five continents.” Source: RevenueBase Database · checked Sep 20, 2026
13	QSI LTD	Indirect evidence	Mallow, IrelandHQ checked Sep 20, 2026	1-10	11 contacts →
	Indirect evidence “Founded in the late 1980s, Quality Services International (QSI) excels in Business to Business Consultancy, driving success for SMEs primarily in manufacturing, engineering…” Source: RevenueBase Database · checked Sep 20, 2026
14	Byrne Ó Cléirigh	Indirect evidence	Dublin 2, IrelandHQ checked Sep 20, 2026	11-50	10 contacts →
	Indirect evidence “Byrne Ó Cléirigh is a firm of professional engineers and management consultants.” Source: RevenueBase Database · checked Sep 20, 2026
15	Threesixtyinsights	Partial evidence	County Galway, IrelandHQ checked Sep 20, 2026	1-10	8 contacts →
	Partial evidence “We collaborate creatively with public agencies and private organisations, working at the intersections of policy, research and practice.” Source: RevenueBase Database · checked Sep 20, 2026
16	Hutch O'malley	Indirect evidence	Patrickswell, IrelandHQ checked Sep 20, 2026	1-10	7 contacts →
	Indirect evidence “As a progressive medium sized company, Hutch O'Malley provides an efficient and accessible service with a wide variety of experience in the fields of; Civil Engineering - Inspect…” Source: RevenueBase Database · checked Sep 20, 2026
17	Mable Consulting Engineers	Strong evidence	Dublin, IrelandHQ checked Sep 20, 2026	1-10	6 contacts →
	Strong evidence “Mable Consulting Engineers was founded by Barry McGinn to provide specialist engineering services to a broad range of clients in both the public and private sectors.” Source: RevenueBase Database · checked Sep 20, 2026
18	Astec Global Consultancy	Partial evidence	Dublin, IrelandHQ checked Sep 20, 2026	1-10	6 contacts →
	Partial evidence “With over 30 years experience, ASTEC Global Consultancy has become a leading international consulting company, providing first class advice and practical solutions to the problems…” Source: RevenueBase Database · checked Sep 20, 2026
19	Kavanagh Mansfield & Partners	Indirect evidence	Dublin, IrelandHQ checked Sep 20, 2026	11-50	4 contacts →
	Indirect evidence “Kavanagh Mansfield and Partners was established in 1988.” Source: RevenueBase Database · checked Sep 20, 2026
20	Hegsons Design Consultancy LTD	Partial evidence	Dublin 2, IrelandHQ checked Sep 20, 2026	11-50	4 contacts →
	Partial evidence “Hegsons Design Consultancy Ltd has extensive experience of servicing clients throughout a wide range of sectors and services.” Source: RevenueBase Database · checked Sep 20, 2026
21	Lean Ireland	Partial evidence	Galway, IrelandHQ checked Sep 20, 2026	1-10	4 contacts →
	Partial evidence “Lean Ireland was founded in 2001 and in the intervening years our consulting team has enabled clients to- improve customer service - implement innovative and robust solutions to…” Source: RevenueBase Database · checked Sep 20, 2026
22	Fgcl Consulting Engineers	Indirect evidence	Blackpool Retail Park, IrelandHQ checked Sep 20, 2026	11-50	4 contacts →
	Indirect evidence “FGCL, established since 1988, has extensive experience in the design, administration and supervision of Civil, Structural and Environmental Engineering Projects in the Private and…” Source: RevenueBase Database · checked Sep 20, 2026
23	Insight Statistical Consulting	Strong evidence	Dublin, IrelandHQ checked Sep 20, 2026	1-10	3 contacts →
	Strong evidence “Founded in 1989 Insight Statistical Consulting provides expert marketing research and statistical services to the public and private sector.” Source: RevenueBase Database · checked Sep 20, 2026
24	Ecos Environmental Consultants Limited	Partial evidence	Limerick, IrelandHQ checked Sep 20, 2026	1-10	3 contacts →
	Partial evidence “ECOS Environmental Consultants works with Multi-National and SME clients using environmental management as a business tool to support a broad range of business sectors.” Source: RevenueBase Database · checked Sep 20, 2026
25	Malachi Cullen Consulting Engineers LTD	Indirect evidence	Athlone, IrelandHQ checked Sep 20, 2026	1-10	2 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: public sector consulting. 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 public sector consulting.
Partial evidence: Its own public description names part of public sector consulting, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name public sector consulting. 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 70 public sector consulting based in Ireland

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Public sector consulting based in Ireland at a glance

As of Sep 20, 2026

47.9%Verified-email coverage

18.9Average contacts per company

1-10Median size (employees)

28.6%Largest-city concentration · Dublin

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 70 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 public sector consulting, 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 “public sector consulting”. 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 public sector consulting), 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 public sector consulting, 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, 633 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 public sector consulting, 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 public sector consulting are there based in Ireland?

RevenueBase identified 70 public sector consulting 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 public sector consulting?

Dublin leads with 20 headquartered companies, followed by Blackrock (4) and Cork (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 633 verified decision-maker contacts tracked across these 70 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.