Company lists · Data refreshed September 2026

Top 25 Cybersecurity consulting agencies based in Ireland

RevenueBase identified 95 company matches for cybersecurity consulting agencies associated with Ireland as of September 2026 and tracks 1,190 professional contacts across them, including 586 with verified work emails and 53 with mobile numbers. Dublin is the largest hub.

This list covers company matches for cybersecurity consulting agencies 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 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 Sep 1, 2026 How this list was built
95Companies
1,190Contacts tracked
586Verified emails
53Mobile numbers
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The 25 largest cybersecurity consulting agencies based in Ireland

Ranked by team size
Top 25 of 95 company matches for cybersecurity consulting agencies based in Ireland, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 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 matchDublin, Ireland201-500286 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 1, 2026 · View company records in RevenueBase
2Exact matchBelfast, Ireland51-200188 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
3Exact matchCitywest Business Campus, Ireland1,001-5,00094 contacts →

Exact match

“Conscia is a leading provider of cybersecurity and networking solutions for mission-critical IT infrastructure in large European organizations.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
4Exact matchBlanchardstown, Ireland11-5081 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
5Exact matchGalway, Ireland51-20076 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 1, 2026 · View company records in RevenueBase
6Exact matchSandyford, Ireland11-5038 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 1, 2026 · View company records in RevenueBase
7Exact matchBelfast, Ireland11-5033 contacts →

Exact match

“CloudGuard is a UK-based Managed Security Service Provider.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
8Exact matchIreland51-20028 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 1, 2026 · View company records in RevenueBase
9Exact matchIreland11-5022 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 1, 2026 · View company records in RevenueBase
10Exact matchArdcavan, Ireland11-5016 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 1, 2026 · View company records in RevenueBase
11Exact matchIreland11-5016 contacts →

Exact match

“VMGroup is a global firm providing extensive knowledge and expertise in the areas of Cyber Security & Compliance, Digital forensics, Electronic Discovery, and IT Audits.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
12Exact matchDublin, Ireland11-5014 contacts →

Exact match

“At Cyber Armed Security, we protect organisations worldwide from evolving cyber threats through intelligence-driven ethical hacking.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
13Exact matchIreland51-20014 contacts →

Exact match

“AVR WAS FOUNDED ON A BELIEF IN DOING WHAT IS RIGHT FOR OUR CUSTOMERS, NOT WHAT IS EASY FOR US.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
14Exact matchIreland11-5013 contacts →

Exact match

“Atoro is a global team of elite cybersecurity consultants, cloud architects, engineers and CISOs with a singular ambition: to help emerging businesses safeguard their data…”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
15Exact matchDublin, Ireland1-1013 contacts →

Exact match

“Safe Harbour Security specialise in penetration testing, ISO consultancy, and governance, risk, and compliance (GRC) services.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
16Exact matchRathcoole, Ireland11-5012 contacts →

Exact match

“Our aim is to help organizations defend against cyber-attacks by finding their vulnerabilities in a proactive manner.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
17Exact matchIreland51-20011 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
18Exact matchIreland11-5011 contacts →

Exact match

“Our Core Values & Our mission are built on one goal: to be the most trusted, forward thinking IT partner you’ve ever worked with.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
19Exact matchSligo, Ireland11-5010 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
20Exact matchDublin, Ireland1-108 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 · Sep 1, 2026 · View company records in RevenueBase
21Exact matchLimerick Lk, Ireland11-508 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
22Exact matchStranorlar, Ireland1-107 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
23Exact matchDublin, Ireland1-107 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 · Sep 1, 2026 · View company records in RevenueBase
24Exact matchBallycoolen, Ireland1-106 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 · Sep 1, 2026 · View company records in RevenueBase
25Exact matchParkmore, Ireland1-105 contacts →

Exact match

“Netfocus IT Solutions provides a comprehensive range of managed IT and cybersecurity services, supporting businesses in maintaining system uptime, safeguarding data, and enhancing…”

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

Showing 25 of 95 cybersecurity consulting agencies based in Ireland

See the full list, filter by size, metro and specialty, and access 586 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Cybersecurity consulting agencies based in Ireland at a glance

As of Sep 1, 2026
49.2%Verified-email coverage
4.5%Mobile-number coverage
12.5Average contacts per company
1-10Median size (employees)
38.9%Largest-city concentration · Dublin
Sep 1, 2026Page data refreshed

Companies by employee count

1-10
64
11-50
22
51-200
6
201-500
2
1,001-5,000
1

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 consulting agencies” 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 586 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 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 “cybersecurity consulting agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many cybersecurity consulting agencies are there based in Ireland?

RevenueBase identified 95 company matches for cybersecurity consulting agencies 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?

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

Which city has the most cybersecurity consulting agencies?

Dublin leads with 37 company records, followed by Cork (3) and Belfast (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 586 professional contacts with verified work emails tracked across these 95 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 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.