Company lists · Data refreshed September 2026

Top 24 Cybersecurity and physical security firms based in Ireland

RevenueBase identified 130 company matches for cybersecurity and physical security firms associated with Ireland as of September 2026 and tracks 8,607 professional contacts across them, including 1,734 with verified work emails. Dublin is the largest hub.

This list covers company matches for cybersecurity and physical security firms 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 September 28, 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 Sep 28, 2026 How this list was built
130Companies
8,607Contacts tracked
1,734Verified emails
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The 24 largest cybersecurity and physical security firms based in Ireland

Ranked by team size
Top 24 of 130 company matches for cybersecurity and physical security firms based in Ireland, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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 matchCork, IrelandHQ recorded Sep 28, 202610001+5,384 contacts →

Exact match

“Tyco offers comprehensive security solutions to protect people, facilities, and assets as part of Johnson Controls world leading portfolio of building products, technologies…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2Exact matchDublin 12, IrelandHQ recorded Sep 28, 20261,001-5,000400 contacts →

Exact match

“Established in 1993 Synergy Security Solutions, is now one of the largest security service providers in Ireland.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3Exact matchClonee, IrelandHQ recorded Sep 28, 20261,001-5,000371 contacts →

Exact match

“As the world’s leading intelligent security services provider, we proudly stand guard to protect what really matters – the safety and welfare of people and property everywhere.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4Exact matchDublin 12, IrelandHQ recorded Sep 28, 2026201-500335 contacts →

Exact match

“We deliver fully managed security, networking, cloud and communications services designed to drive enterprise.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5Exact matchDublin 12, IrelandHQ recorded Sep 28, 2026201-500288 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6Exact matchCork - London - New York City - Bucharest - Krakow - Belfast, IrelandHQ recorded Sep 28, 202651-200189 contacts →

Exact match

“At Smarttech247 we help global companies defend against cyber crime and protect their operations.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7Exact matchUnit W6a, IrelandHQ recorded Sep 28, 2026n/a167 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8Exact matchGalway, IrelandHQ recorded Sep 28, 2026n/a96 contacts →

Exact match

“Pro Security was set up in 2015, since then we have grown our customer base to over throughout Ireland.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9Exact matchDublin, IrelandHQ recorded Sep 28, 202611-5081 contacts →

Exact match

“BH Consulting is an independent consulting firm in operation since 2004.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10Exact matchGalway, IrelandHQ recorded Sep 28, 202651-20077 contacts →

Exact match

“TitanHQ and Redstor have merged to launch CyberSentriq, a cybersecurity champion built for MSPs and their customers.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11Exact matchCork, IrelandHQ recorded Sep 28, 20265,001-10,00075 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12Exact matchDublin, IrelandHQ recorded Sep 28, 2026201-50057 contacts →

Exact match

“Acre brands, united!”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13Exact matchDublin, IrelandHQ recorded Sep 28, 202611-5036 contacts →

Exact match

“We are a pure play IT security company, which allows us to focus solely on protecting your business from cyber threats.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14Exact matchSandyford, IrelandHQ recorded Sep 28, 202651-20027 contacts →

Exact match

“Paradyn is a leading provider of IT security and consultancy services in Ireland, offering a comprehensive, best-in-class suite of security services to monitor, protect and defend…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15Exact matchBlanchardstown, IrelandHQ recorded Sep 28, 202611-5021 contacts →

Exact match

“CommSec is an Irish cyber security company helping organisations protect their systems, data, and operations against modern cyber threats.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16Exact matchDublin 24, IrelandHQ recorded Sep 28, 202611-5019 contacts →

Exact match

“Mercury Security Distribution is a leading provider of innovative security solutions for businesses of all sizes.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17Exact matchBallina, IrelandHQ recorded Sep 28, 202651-20019 contacts →

Exact match

“Established in 1983, Coleman Electronics Ltd is one of the market leaders in the electronics and security industry in both the west and northwest of Ireland, whilst also operating…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18Exact matchDublin 24, IrelandHQ recorded Sep 28, 202651-20018 contacts →

Exact match

“Secure Management Solutions (SMS) is a security company founded by highly experienced security company managers with 80 years of experience together.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19Exact matchLeinster, IrelandHQ recorded Sep 28, 202651-20016 contacts →

Exact match

“Taskforce Security Management Services is a pioneering start-up that has emerged as a leader in the field of security services in Ireland.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20Exact matchDublin, IrelandHQ recorded Sep 28, 202611-5015 contacts →

Exact match

“We Simplify Cyber Security.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21Exact matchCitywest, IrelandHQ recorded Sep 28, 202611-5015 contacts →

Exact match

“Exclusive Networks is a global trusted cybersecurity specialist for digital infrastructure helping to drive the transition to a totally trusted digital future for all people and…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22Exact matchNenagh, IrelandHQ recorded Sep 28, 20261-1013 contacts →

Exact match

“Third Eye Technology specialise in providing security and management solutions through the integration and use of CCTV, Access Control, Intruder Alarm Systems, Automation and…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23Exact matchPortarlington, IrelandHQ recorded Sep 28, 202611-5013 contacts →

Exact match

“Atoro is a cyber compliance consultancy for scaling software companies, and Europe's first ISO 42001 certified consultancy.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24Exact matchDublin 12, IrelandHQ recorded Sep 28, 202611-5012 contacts →

Exact match

“Viatech Security Systems is a leading provider of integrated electronic security systems, delivering end-to-end solutions that keep your people, property, and assets safe.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

Showing 24 of 130 cybersecurity and physical security firms based in Ireland

See the full list, filter by size, metro and specialty, and access 1,734 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Cybersecurity and physical security firms based in Ireland at a glance

As of Sep 28, 2026
20.1%Verified-email coverage
66.2Average contacts per company
11-50Median size (employees)
30.0%Largest-city concentration · Dublin
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
63
11-50
40
51-200
14
201-500
5
501-1,000
2
1,001-5,000
3
5,001-10,000
1
10001+
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 130 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 “cybersecurity and physical security firms” 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 1,734 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 September 28, 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.

Cybersecurity and physical security firms 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 “cybersecurity and physical security firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many cybersecurity and physical security firms are there based in Ireland?

RevenueBase identified 130 company matches for cybersecurity and physical security firms associated with Ireland as of September 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?

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

Which city has the most cybersecurity and physical security firms?

Dublin leads with 39 company records, followed by Naas (4) and Belfast (3).

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 1,734 professional contacts with verified work emails tracked across these 130 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 September 28, 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.