Company lists · Data refreshed October 2026

Top 25 Information security consultancies based in Ireland

RevenueBase identified 81 company matches for information security consultancies associated with Ireland as of October 2026 and tracks 748 professional contacts across them, including 272 with verified work emails. Dublin is the largest hub.

This list covers company matches for information security consultancies 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 October 1, 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 Oct 1, 2026 How this list was built
81Companies
748Contacts tracked
272Verified emails
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The 25 largest information security consultancies based in Ireland

Ranked by team size
Top 25 of 81 company matches for information security consultancies based in Ireland, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 1, 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 - London - New York City - Bucharest - Krakow - Belfast, IrelandHQ recorded Oct 1, 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 · Oct 1, 2026 · View company records in RevenueBase
2Exact matchDublin, IrelandHQ recorded Oct 1, 202611-5081 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
3Exact matchDublin, IrelandHQ recorded Oct 1, 202611-5040 contacts →

Exact match

“Pioneer Fire & Security is run by professionals with a strong pedigree in the Irish life safety & security industry.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
4Exact matchSandyford, IrelandHQ recorded Oct 1, 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 · Oct 1, 2026 · View company records in RevenueBase
5Exact matchSandyford, IrelandHQ recorded Oct 1, 202611-5024 contacts →

Exact match

“We are the Information and Communications Technology Partner of choice for many organisations throughout Ireland including a large percentage of the country’s Credit Unions.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
6Exact matchBlanchardstown, IrelandHQ recorded Oct 1, 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 · Oct 1, 2026 · View company records in RevenueBase
7Exact matchPortarlington, IrelandHQ recorded Oct 1, 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 · Oct 1, 2026 · View company records in RevenueBase
8Exact matchIrelandHQ recorded Oct 1, 202651-20011 contacts →

Exact match

“Ward Solutions is Ireland’s largest Information Security provider.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
9Exact matchSligo, IrelandHQ recorded Oct 1, 202611-5010 contacts →

Exact match

“Enterprise Defence are an award winning team of cyber security specialists.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
10Exact matchWaterford, IrelandHQ recorded Oct 1, 202611-5010 contacts →

Exact match

“Onaware is an independent identity security and privacy consultancy helping regulated organisations solve complex IAM and compliance challenges.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
11Exact matchDublin, IrelandHQ recorded Oct 1, 20261-109 contacts →

Exact match

“SecureSpace is the UK & Ireland's leading IT Brokerage firm.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
12Exact matchDublin, IrelandHQ recorded Oct 1, 202651-2008 contacts →

Exact match

“Formed in Ireland in 2015, Kontex has grown to become a leading supplier of security technologies and services to organisations around the world.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
13Exact matchDublin 2, IrelandHQ recorded Oct 1, 20261-108 contacts →

Exact match

“Intercept Technologies, the game-changer in advanced monitoring and state-of-the-art tooling, offering unparalleled identification and remediation of potential exposures and…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
14Exact matchLimerick, IrelandHQ recorded Oct 1, 202611-508 contacts →

Exact match

“Ripplecom delivers telecoms and IT security that really work for business.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
15Exact matchStranorlar, IrelandHQ recorded Oct 1, 20261-107 contacts →

Exact match

“Secora Consulting are experts in cybersecurity and risk mitigation.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
16Exact matchDundalk, IrelandHQ recorded Oct 1, 202611-507 contacts →

Exact match

“At Moran CCTV we pride ourselves on offering our clients unparalleled service for the solutions we provide.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
17Exact matchDublin, IrelandHQ recorded Oct 1, 20261-107 contacts →

Exact match

“Leacam offers security-first IT support services that help protect your business, minimise the number and severity of security incidents, and reduces your overall IT costs.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
18Exact matchBallycoolen, IrelandHQ recorded Oct 1, 20261-106 contacts →

Exact match

“TUSA IT helps your business to leverage IT Solutions to keep you secure and drive your business goals.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
19Exact matchIrelandHQ recorded Oct 1, 20261-106 contacts →

Exact match

“The Compliance Team is a trusted partner for growing organisations seeking expert-led, integrated compliance support.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
20Exact matchDublin 18, IrelandHQ recorded Oct 1, 20261-105 contacts →

Exact match

“Cybertree Engineers are Information Security Specialists.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
21Exact matchNaas, IrelandHQ recorded Oct 1, 202611-505 contacts →

Exact match

“Novi delivers security-oriented IT services that reduce risk and enable growth.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
22Exact matchClarecastle, IrelandHQ recorded Oct 1, 20261-104 contacts →

Exact match

“IT Security People Ltd was set up in response to the surge in Cybercrime exploits and IT Security threats in the Irish market.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
23Exact matchDublin, IrelandHQ recorded Oct 1, 20261-104 contacts →

Exact match

“Attackers already know what's in your environment.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
24Exact matchDublin, IrelandHQ recorded Oct 1, 20261-104 contacts →

Exact match

“At Advice Bytes, we go beyond just advice, we deliver outcomes.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
25Exact matchDublin 15, IrelandHQ recorded Oct 1, 20261-104 contacts →

Exact match

“Zirona was founded by Jack Foran, an IT consultant with nearly two decades of experience in implementing & managing IT infrastructure, IT services and cybersecurity, as a response…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase

Showing 25 of 81 information security consultancies based in Ireland

See the full list, filter by size, metro and specialty, and access 272 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Information security consultancies based in Ireland at a glance

As of Oct 1, 2026
36.4%Verified-email coverage
9.2Average contacts per company
1-10Median size (employees)
34.6%Largest-city concentration · Dublin
Oct 1, 2026Page data refreshed

Companies by employee count

1-10
54
11-50
19
51-200
7
201-500
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 81 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 “information security consultancies” 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 272 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 October 1, 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.

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 “information security consultancies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many information security consultancies are there based in Ireland?

RevenueBase identified 81 company matches for information security consultancies associated with Ireland as of October 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?

Smarttech247 tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most information security consultancies?

Dublin leads with 28 company records, followed by Belfast (2) and Cork (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 272 professional contacts with verified work emails tracked across these 81 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 October 1, 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.