Company lists · Data refreshed September 2026

Top 25 Enterprise IT consulting firms based in Ireland

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

Compiled by the RevenueBase Data Team Data refreshed Sep 2, 2026 286 companies tracked

RevenueBase identified 286 enterprise IT consulting firms headquartered in Ireland as of September 2026 and tracks 3,435 professional contacts across them, including 1,437 with verified work emails and 172 with mobile numbers. Dublin is the largest hub.

This list covers enterprise IT 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 2, 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 RevenueBase Smart Search rating on every row Refreshed Sep 2, 2026 86% judged on-target in blind review

286Companies

3,435Contacts tracked

1,437Verified emails

172Mobile numbers

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The 25 largest enterprise IT consulting firms based in Ireland

Ranked by team size

Top 25 of 286 enterprise IT consulting firms based in Ireland, ranked by team size, largest first. Data refreshed Sep 2, 2026. RevenueBase Smart Search rates how each company's information relates to enterprise IT consulting 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	PFH Technology Group	Indirect evidence	Galway City, Ireland	501-1,000	575 contacts →
	Indirect evidence “PFH Technology Group, a Ricoh Company, is Ireland's largest ICT services and solutions provider with 800+ employees (600+ technical).” Source: RevenueBase Database · checked Sep 2, 2026
2	Nostra	Partial evidence	Dublin, Ireland	201-500	286 contacts →
	Partial evidence “Nostra was established in 2006 and in that time has become one of Ireland’s most trusted providers of Managed IT and Cyber Security Services for a wide range of sectors.” Source: RevenueBase Database · checked Sep 2, 2026
3	Appirio	Indirect evidence	Block D, Ireland	1,001-5,000	145 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 2, 2026
4	8 West Consulting	Strong evidence	Cork, Ireland	201-500	143 contacts →
	Strong evidence “8 West Consulting is an ISO 27001-certified software partner delivering enterprise systems for complex, regulated Health InsurTech and ecommerce environments.” Source: RevenueBase Database · checked Sep 2, 2026
5	Presidio Europe & Asia Pacific	Indirect evidence	Dublin, Ireland	201-500	100 contacts →
	Indirect evidence “Welcome to the official EMEA & APAC page for Presidio.” Source: RevenueBase Database · checked Sep 2, 2026
6	Conscia	Partial evidence	Citywest Business Campus, Ireland	1,001-5,000	94 contacts →
	Partial evidence “Conscia is a leading provider of cybersecurity and networking solutions for mission-critical IT infrastructure in large European organizations.” Source: RevenueBase Database · checked Sep 2, 2026
7	Itech Consult AG	Indirect evidence	Dun Laoghaire, Ireland	201-500	94 contacts →
	Indirect evidence “Innovation seit 1997 Ob es um Online-Technologien, Datenschutz, Gender-Gerechtigkeit oder KI-Anwendungen geht – seit ihrer Gründung im Jahr 1997 leistet die ITech Consult AG…” Source: RevenueBase Database · checked Sep 2, 2026
8	Datapac	Indirect evidence	Ireland	51-200	86 contacts →
	Indirect evidence “Datapac is one of Ireland’s largest and most successful ICT solutions and services providers.” Source: RevenueBase Database · checked Sep 2, 2026
9	Numata Business IT	Indirect evidence	Dundrum, Ireland	51-200	85 contacts →
	Indirect evidence “Numata is a leading global business technology services and solutions provider for SMEs, with offices in the United Kingdom, Ireland and South Africa.” Source: RevenueBase Database · checked Sep 2, 2026
10	Enterprise Registry Solutions	Partial evidence	Ireland	11-50	76 contacts →
	Partial evidence “Welcome to Enterprise Registry Solutions (ERS), a wholly owned subsidiary of Information Services Corporation (ISC).” Source: RevenueBase Database · checked Sep 2, 2026
11	HCS	Indirect evidence	Cork, Ireland	51-200	63 contacts →
	Indirect evidence “The technology landscape may be changing every day, but with a team of internationally accredited experts right here in Ireland, HCS can navigate your organisation across its…” Source: RevenueBase Database · checked Sep 2, 2026
12	Netroots Technologies LLC	Partial evidence	Dublin, Ireland	51-200	52 contacts →
	Partial evidence “NetRoots Technologies is an information technology services, AI, software development and consulting company.” Source: RevenueBase Database · checked Sep 2, 2026
13	Intuity Technologies	Partial evidence	Galway, Ireland	51-200	50 contacts →
	Partial evidence “Intuity Technologies is an Irish technology company specialising in Data, AI, IT and Cybersecurity, headquartered in Galway.” Source: RevenueBase Database · checked Sep 2, 2026
14	Saros Consulting	Strong evidence	Ireland	51-200	47 contacts →
	Strong evidence “Saros Consulting is a global leader in IT consulting and strategic project management.” Source: RevenueBase Database · checked Sep 2, 2026
15	Leit Data	Indirect evidence	Dalkey, Ireland	51-200	31 contacts →
	Indirect evidence “LEIT DATA is a consultancy and services company with over 20 years of experience in the sector.” Source: RevenueBase Database · checked Sep 2, 2026
16	Bytek IT Solutions	Indirect evidence	New Ross, Ireland	11-50	30 contacts →
	Indirect evidence “Power your business with hassle-free solutions.” Source: RevenueBase Database · checked Sep 2, 2026
17	ISC Software Solutions LTD	Partial evidence	Ireland	11-50	27 contacts →
	Partial evidence “We offer a comprehensive range of consulting, custom software development and support services to assist customers to improve efficiencies through automating processes, accessing…” Source: RevenueBase Database · checked Sep 2, 2026
18	DNA IT Solutions	Partial evidence	Dublin, Ireland	11-50	26 contacts →
	Partial evidence “DNA IT Solutions provide effective technologies for business success.” Source: RevenueBase Database · checked Sep 2, 2026
19	Bethel Digitech	Strong evidence	Dublin, Ireland	51-200	23 contacts →
	Strong evidence “IT Consulting I Software I Financial Services” Source: RevenueBase Database · checked Sep 2, 2026
20	Synovia Digital	Partial evidence	Dublin, Ireland	11-50	21 contacts →
	Partial evidence “Synovia Digital is a top-tier technology consulting firm renowned for delivering customized end-to-end software solutions to diverse businesses.” Source: RevenueBase Database · checked Sep 2, 2026
21	PAQ IT	Partial evidence	Limerick, Ireland	11-50	20 contacts →
	Partial evidence “Founded in 2002 by Ger Sheehan, we are a long established, tried and trusted IT partner.” Source: RevenueBase Database · checked Sep 2, 2026
22	Crimson Line	Indirect evidence	Dublin, Ireland	11-50	20 contacts →
	Indirect evidence “Crimson Line: Your Technology Consultancy and Managed Services Provider At Crimson Line, we specialize in unleashing the full potential of Microsoft's applications, orchestrating…” Source: RevenueBase Database · checked Sep 2, 2026
23	Spector IT	Partial evidence	Ireland	11-50	19 contacts →
	Partial evidence “At Spector, we help business leaders take control of their IT with clarity and confidence.” Source: RevenueBase Database · checked Sep 2, 2026
24	Clarion Consulting	Partial evidence	Dublin, Ireland	11-50	16 contacts →
	Partial evidence “Clarion Consulting is a leading Business and Information Technology consulting company.” Source: RevenueBase Database · checked Sep 2, 2026
25	Unity Technology Solutions- An Ekco Company	Partial evidence	Ireland	51-200	15 contacts →
	Partial evidence “Award winning Unity Technology Solutions has been the independent IT partner of choice for companies throughout Ireland for more than 20 years.” Source: RevenueBase Database · checked Sep 2, 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: enterprise IT consulting 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 enterprise IT consulting firms.
Partial evidence: Its own public description names part of enterprise IT consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name enterprise IT consulting 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 286 enterprise IT consulting firms based in Ireland

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Enterprise IT consulting firms based in Ireland at a glance

As of Sep 2, 2026

41.8%Verified-email coverage

5.0%Mobile-number coverage

12.0Average contacts per company

1-10Median size (employees)

37.1%Largest-city concentration · Dublin

Sep 2, 2026Page data refreshed

Companies by employee count

1-10

174

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 enterprise IT consulting 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 “enterprise IT consulting 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 enterprise IT consulting 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 enterprise IT 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 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, 1,437 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 2, 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.

Enterprise IT consulting firms by metro

Enterprise IT consulting firms in Dublin106

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 enterprise IT consulting 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 enterprise IT consulting firms are there based in Ireland?

RevenueBase identified 286 enterprise IT 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?

PFH Technology Group, headquartered in Galway City, tops this list with the largest team on record.

Which city has the most enterprise IT consulting firms?

Dublin leads with 106 headquartered companies, followed by Cork (9) and Limerick (7).

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 1,437 verified decision-maker contacts tracked across these 286 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 2, 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.