Company lists · Data verified August 2026

Top 25 IT consulting companies based in Ireland

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 308 companies tracked

As of August 2026, this directory lists 308 IT consulting companies based in Ireland, with 10,266 contacts and 3,162 email addresses. Dublin is the single most-represented city among the companies on the list. Use the directory to identify potential vendors, partners, and sales prospects.

IT consulting companies advise organizations on technology strategy, systems, software, infrastructure, cybersecurity, cloud services, and related IT implementation needs. This list covers companies that provide professional IT consulting services, including technology advisory, systems planning, implementation support, and related services. Ranked by team size, largest first. Data current as of August 28, 2026.

308Companies

10,266Contacts tracked

3,162Verified emails

274Mobile numbers

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The 25 largest IT consulting companies based in Ireland

Ranked by team size

Top 25 of 308 IT consulting companies based in Ireland, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Seidor	Dublin	5,001-10,000	6,127	1,584
2	ERGO	n/a	501-1,000	832	256
3	PFH Technology Group	Galway City	501-1,000	575	398
4	Northcorp Software	Dublin	1,001-5,000	194	16
5	Appirio	Block D	1,001-5,000	145	15
6	8 West Consulting	Cork	201-500	143	101
7	Presidio Europe & Asia Pacific	Dublin	201-500	100	77
8	Datapac	n/a	51-200	86	34
9	Enterprise Registry Solutions	n/a	11-50	76	54
10	JET BI	Ballsbridge	51-200	66	36
11	Innovate	Mullingar	11-50	58	39
12	Netroots Technologies LLC	Dublin	51-200	52	1
13	Intuity Technologies	Galway	51-200	50	34
14	Saros Consulting	n/a	51-200	47	31
15	TLS IT Solutions Dmcc	Navan	51-200	42	24
16	Trojan IT	Boyle	11-50	33	27
17	Business IT Solutions	Citywest Business Campus Citywest	11-50	31	17
18	MJ Flood Technology	Dublin	51-200	31	9
19	Leit Data	Dalkey	51-200	31	1
20	Bytek IT Solutions	New Ross	11-50	30	19
21	ISC Software Solutions LTD	n/a	11-50	27	11
22	DNA IT Solutions	Dublin	11-50	26	15
23	Bethel Digitech	Dublin	51-200	23	14
24	Synovia Digital	Dublin	11-50	21	11
25	Devensis	n/a	11-50	21	3

Showing 25 of 308 IT consulting companies based in Ireland

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IT consulting companies based in Ireland at a glance

As of Aug 28, 2026

1-10Median size (employees)

DublinLargest hub · 112 HQs

274Contacts with mobile numbers

17Emails re-verified in last 30 days

Companies by employee count

1-10

189

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

IT consulting companies by metro

Metro	Companies
IT consulting companies in Dublin	112
IT consulting companies in Cork	12
IT consulting companies in Limerick	7
IT consulting companies in Blackrock	6
IT consulting companies in Galway	6
IT consulting companies in Sandyford	5
IT consulting companies in Ireland	4

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “IT consulting companies”, with match quality audited by blind human judging, and headquartered in Ireland.
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: Contact records re-verify on a rolling cadence; 17 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many IT consulting companies are in the directory?

The directory contains 308 IT consulting companies based in Ireland as of August 2026.

How can I find contacts at IT consulting companies?

You can use this directory to review 10,266 contacts and 3,162 email addresses associated with IT consulting companies based in Ireland.

Which city has the most IT consulting companies on the list?

Dublin is the single most-represented city among the IT consulting companies on the list.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.