Company lists · Data refreshed November 2026

Top 23 IT system integration services based in Ireland

RevenueBase identified 91 company matches for IT system integration services associated with Ireland as of November 2026 and tracks 5,699 professional contacts across them, including 2,019 with verified work emails. Dublin is the largest hub.

This list covers company matches for IT system integration services associated with Ireland, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
91Companies
5,699Contacts tracked
2,019Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 23 largest IT system integration services based in Ireland

Ranked by team size
Top 23 of 91 company matches for IT system integration services based in Ireland, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchDublin, IrelandHQ recorded Nov 6, 2026501-1,000606 contacts →

Exact match

“PFH Technology Group, a Ricoh Company, is Ireland's largest ICT services and solutions provider with 800+ employees (600+ technical).”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchIrelandHQ recorded Nov 6, 202651-20090 contacts →

Exact match

“Datapac is one of Ireland’s largest and most successful ICT solutions and services providers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchSligo, IrelandHQ recorded Nov 6, 202651-20087 contacts →

Exact match

“Established in 2002, SL Controls has evolved into an industry-leading provider of Systems Integration solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchDublin, IrelandHQ recorded Nov 6, 202611-5040 contacts →

Exact match

“Capaciteam is a dynamic software development company dedicated to driving positive change in the world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchClonmel, IrelandHQ recorded Nov 6, 202611-5037 contacts →

Exact match

“Unitec are an international technology company with offices in both Ireland and South Africa.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchBoyle, IrelandHQ recorded Nov 6, 202611-5036 contacts →

Exact match

“Based in Boyle, Co.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchDublin, IrelandHQ recorded Nov 6, 202651-20036 contacts →

Exact match

“Tomorrows World Limited (TW) was founded in 1979 and is one of the longest established IT services companies in Ireland.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchKilkenny, IrelandHQ recorded Nov 6, 202611-5034 contacts →

Exact match

“BITS (BUSINESS I.T.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchGlasnevin, IrelandHQ recorded Nov 6, 202611-5032 contacts →

Exact match

“Power your business with hassle-free solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchDublin, IrelandHQ recorded Nov 6, 202611-5030 contacts →

Exact match

“DNA IT Solutions provide effective technologies for business success.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchDublin, IrelandHQ recorded Nov 6, 202651-20026 contacts →

Exact match

“At MJ Flood Technology, we specialise in connectivity – connecting people, processes and technology to help organisations capitalise on the disruptive, digitised world we live in.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchDublin, IrelandHQ recorded Nov 6, 202611-5023 contacts →

Exact match

“At Calnet IT Solutions, our reputation is built on our expertise, customer commitment and a thorough understanding of our customer’s needs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchCork, IrelandHQ recorded Nov 6, 20261-1018 contacts →

Exact match

“We are I.T.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchIrelandHQ recorded Nov 6, 202651-20014 contacts →

Exact match

“Control and Information Management (CIM) Ltd is one of the leading system integrators in the area of industrial automation in Ireland.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchDublin, IrelandHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“1network is one of Dublin's leading IT support and consulting services since 2002, we provide solutions to all of our client’s IT needs, from purchasing hardware and software to…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchMullingar, IrelandHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“INET Computer Solutions PC Support was formed in 2004 by Ronan Mc Namara with the aim of providing in house Technical Support for small businesses which had neither the skills nor…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchDublin, IrelandHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Established in 1985, ERS IT Solutions has provided IT support and services to a broad range of organisations (large and small) throughout Ireland and has evolved into one of the…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchDublin, IrelandHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“EastPoint Solutions was founded in April 2009 by Mike O’Brien.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchDublin, IrelandHQ recorded Nov 6, 20261-1011 contacts →

Exact match

“INS - International Network Systems Limited was formed in 1993 to provide IT skills and solutions to an exploding market in both Ireland and the UK.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchCelbridge, IrelandHQ recorded Nov 6, 202611-509 contacts →

Exact match

“Imagine an IT partnership that transcends conventional service providers – one that prioritizes your business growth over short-term gains.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchAthlone, IrelandHQ recorded Nov 6, 202611-509 contacts →

Exact match

“Avova Technologies is an innovative I.T.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchDublin 24, IrelandHQ recorded Nov 6, 202611-506 contacts →

Exact match

“Based in Dublin, Ireland, we’ve specialised in providing comprehensive support, maintenance and networking for small to large companies since 1992.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchDublin, IrelandHQ recorded Nov 6, 202611-505 contacts →

Exact match

“Dovetail is a specialist provider of custom IT solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 23 of 91 IT system integration services based in Ireland

See the full list, filter by size, metro and specialty, and access 2,019 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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IT system integration services based in Ireland at a glance

As of Nov 6, 2026
35.4%Verified-email coverage
62.6Average contacts per company
11-50Median size (employees)
35.2%Largest-city concentration · Dublin
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
43
11-50
30
51-200
13
201-500
1
501-1,000
2
1,001-5,000
1
5,001-10,000
1

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 91 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with Ireland whose business descriptions match “IT system integration services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 2,019 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

IT system integration services by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “IT system integration services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many IT system integration services are there based in Ireland?

RevenueBase identified 91 company matches for IT system integration services associated with Ireland as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

PFH Technology Group tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most IT system integration services?

Dublin leads with 32 company records, followed by Limerick (3) and Athlone (2).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 2,019 professional contacts with verified work emails tracked across these 91 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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.