Company lists · Data refreshed September 2026

Top 25 Systems integration contractors based in Ireland

Name: Systems integration contractors based in Ireland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 48 companies tracked

RevenueBase identified 48 systems integration contractors headquartered in Ireland as of September 2026 and tracks 988 professional contacts across them, including 352 with verified work emails. Dublin is the largest hub.

This list covers systems integration contractors 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 29, 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 29, 2026 86% judged on-target in blind review

48Companies

988Contacts tracked

352Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest systems integration contractors based in Ireland

Ranked by team size

Top 25 of 48 systems integration contractors based in Ireland, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to systems integration contractors: 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	MTM Engineering LTD	Partial evidence	Slane, IrelandHQ checked Sep 29, 2026	501-1,000	253 contacts →
	Partial evidence “MTM Engineering – Delivering Excellence in Critical Power and Communications Solutions MTM Engineering is a leading specialist electrical contractor headquartered in Ireland.” Source: RevenueBase Database · checked Sep 29, 2026
2	SL Controls LTD	Strong evidence	Sligo, IrelandHQ checked Sep 29, 2026	51-200	91 contacts →
	Strong evidence “Established in 2002, SL Controls has evolved into an industry-leading provider of Systems Integration solutions.” Source: RevenueBase Database · checked Sep 29, 2026
3	Modular Automation	Indirect evidence	Shannon, IrelandHQ checked Sep 29, 2026	51-200	81 contacts →
	Indirect evidence “We enable the world’s leading medtech companies manufacture sophisticated, ultra-high quality, life-changing products, at scale.” Source: RevenueBase Database · checked Sep 29, 2026
4	TIM Kelly Group	Partial evidence	Ballybrit, IrelandHQ checked Sep 29, 2026	201-500	41 contacts →
	Partial evidence “Tim Kelly Group, founded in 1974, is one of Ireland’s leading mechanical and electrical contractors offering mechanical, electrical, fire protection and technology solutions.” Source: RevenueBase Database · checked Sep 29, 2026
5	Sygma Automation	Indirect evidence	Mallow Road, IrelandHQ checked Sep 29, 2026	11-50	35 contacts →
	Indirect evidence “Senior engineers located in the following areas: Cork - Dublin - Belfast - Galway - Mayo - Donegal - Roscommon - Longford - Kerry - Laois - Limerick Sygma Automation specialises…” Source: RevenueBase Database · checked Sep 29, 2026
6	CTS Group IRE	Indirect evidence	Co Waterford, IrelandHQ checked Sep 29, 2026	11-50	27 contacts →
	Indirect evidence “CTS Group is the first choice for those seeking electrical, mechanical and technology contracting services.” Source: RevenueBase Database · checked Sep 29, 2026
7	Wilec Life Safety & Security Systems	Partial evidence	Rathnew, IrelandHQ checked Sep 29, 2026	11-50	23 contacts →
	Partial evidence “Wilec (Fire & Security) Ltd was incorporated in June 2002 and specialises in the installation and maintenance of electronic fire, life safety and security systems to all sectors…” Source: RevenueBase Database · checked Sep 29, 2026
8	H&f Electrical Contractors Limited	Partial evidence	Limerick, IrelandHQ checked Sep 29, 2026	51-200	22 contacts →
	Partial evidence “Established in 1989, H&F Electrical Contractors Ltd offer a wealth of experience and expertise across all market sectors in delivering electrical, instrumentation, data network…” Source: RevenueBase Database · checked Sep 29, 2026
9	Control And Information Management CIM LTD	Partial evidence	IrelandHQ checked Sep 29, 2026	51-200	20 contacts →
	Partial evidence “Control and Information Management (CIM) Ltd is one of the leading system integrators in the area of industrial automation in Ireland.” Source: RevenueBase Database · checked Sep 29, 2026
10	Crescent Infrastructure LTD	Indirect evidence	Dublin, IrelandHQ checked Sep 29, 2026	51-200	18 contacts →
	Indirect evidence “Crescent Infrastructure is a trusted partner within the most highly secured Data Centres and highly respected prominent businesses and industries in Ireland.” Source: RevenueBase Database · checked Sep 29, 2026
11	William Farrell Limited	Indirect evidence	Dublin 18, IrelandHQ checked Sep 29, 2026	11-50	18 contacts →
	Indirect evidence “Welcome to William Farrell Ltd.” Source: RevenueBase Database · checked Sep 29, 2026
12	Walsh Group	Partial evidence	Ballinrobe, IrelandHQ checked Sep 29, 2026	51-200	17 contacts →
	Partial evidence “Walsh Group is a Building Services Engineering Contractor offering a comprehensive range of installation services.” Source: RevenueBase Database · checked Sep 29, 2026
13	L. Redmond Electrical LTD	Partial evidence	Dublin 3, IrelandHQ checked Sep 29, 2026	11-50	13 contacts →
	Partial evidence “Established in 1969, we are General Electrical Contractors carrying out industrial and commercial contracts in the Republic of Ireland.” Source: RevenueBase Database · checked Sep 29, 2026
14	Eastpoint Solutions	Indirect evidence	Dublin, IrelandHQ checked Sep 29, 2026	11-50	12 contacts →
	Indirect evidence “EastPoint Solutions was founded in April 2009 by Mike O’Brien.” Source: RevenueBase Database · checked Sep 29, 2026
15	Lara Electrical LTD	Indirect evidence	Clondalkin, IrelandHQ checked Sep 29, 2026	11-50	12 contacts →
	Indirect evidence “Lara Electrical & Alarms are an industry leader in the provision of both Electrical & Security Installations.” Source: RevenueBase Database · checked Sep 29, 2026
16	INS	Partial evidence	Dublin, IrelandHQ checked Sep 29, 2026	1-10	11 contacts →
	Partial evidence “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.” Source: RevenueBase Database · checked Sep 29, 2026
17	Inet Computer Solutions	Indirect evidence	Mullingar, IrelandHQ checked Sep 29, 2026	11-50	11 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 29, 2026
18	GPS IT Services LTD	Indirect evidence	Celbridge, IrelandHQ checked Sep 29, 2026	11-50	9 contacts →
	Indirect evidence “Imagine an IT partnership that transcends conventional service providers – one that prioritizes your business growth over short-term gains.” Source: RevenueBase Database · checked Sep 29, 2026
19	BPS Controls	Partial evidence	Enterprise House, IrelandHQ checked Sep 29, 2026	1-10	4 contacts →
	Partial evidence “BPS Controls are Building Management Systems Integrators with over 30 years combined experience in delivering small to large scale projects throughout Ireland across Commercial…” Source: RevenueBase Database · checked Sep 29, 2026
20	Etelligence LTD	Indirect evidence	Togher, IrelandHQ checked Sep 29, 2026	11-50	3 contacts →
	Indirect evidence “Etelligence is an IT company dedicated to you, the Small to Medium sized Enterprise (SME).” Source: RevenueBase Database · checked Sep 29, 2026
21	Educom LTD	Indirect evidence	Dublin 11, IrelandHQ checked Sep 29, 2026	11-50	3 contacts →
	Indirect evidence “Educom Company Background Established in 1995 Privately Owned We provide a comprehensive range of services in two sectors • ICT/AV services to Schools, Colleges and Small Business.” Source: RevenueBase Database · checked Sep 29, 2026
22	Logicon Automation Solutions	Partial evidence	Dundalk, IrelandHQ checked Sep 29, 2026	1-10	3 contacts →
	Partial evidence “Logicon provide development and installation of PLC, HMI and Scada systems and also provide project management, procurement, commissioning and validation services.” Source: RevenueBase Database · checked Sep 29, 2026
23	Hereworks	Indirect evidence	IrelandHQ checked Sep 29, 2026	51-200	2 contacts →
	Indirect evidence “Hereworks - creating community from technology There’s a perception that technology is scary, a dark art, an esoteric area of knowledge that ‘normal people’ can’t understand.” Source: RevenueBase Database · checked Sep 29, 2026
24	Dynamic Electrical Engineering Contractors LTD	Indirect evidence	Dublin, IrelandHQ checked Sep 29, 2026	11-50	2 contacts →
	Indirect evidence “Dynamic Electrical is a visionary enterprise specializing in electrical installation, maintenance and fire suppression.” Source: RevenueBase Database · checked Sep 29, 2026
25	Navigate Technology	Indirect evidence	Dublin, IrelandHQ checked Sep 29, 2026	1-10	2 contacts →
	Indirect evidence “We understand that choosing the right technology for your business can be challenging and time-consuming.” Source: RevenueBase Database · checked Sep 29, 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: systems integration contractors. 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 systems integration contractors.
Partial evidence: Its own public description names part of systems integration contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name systems integration contractors. 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 48 systems integration contractors based in Ireland

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 352 reachable decision-makers.

Free signup · no credit card

View the full list →

Systems integration contractors based in Ireland at a glance

As of Sep 29, 2026

35.6%Verified-email coverage

20.6Average contacts per company

11-50Median size (employees)

14.6%Largest-city concentration · Dublin

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 48 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 systems integration contractors, 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 “systems integration contractors”. 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 systems integration contractors), 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 systems integration contractors, 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, 352 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 29, 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 systems integration contractors, 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 systems integration contractors are there based in Ireland?

RevenueBase identified 48 systems integration contractors 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?

MTM Engineering LTD, headquartered in Ireland, tops this list with the largest team on record.

Which city has the most systems integration contractors?

Dublin leads with 7 headquartered companies, followed by Cork (2) and Dundalk (2).

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 352 verified decision-maker contacts tracked across these 48 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 29, 2026.

Ready to reach these companies? Verified emails and direct dials for all 48 systems integration contractors based in Ireland. Start with a free account, no credit card.

Download this list →

Related lists

Systems integration contractors by geography

Browse the directory

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.