Company lists · Data refreshed September 2026

Top 25 Data security consulting firms based in Ireland

RevenueBase identified 78 company matches for data security consulting firms associated with Ireland as of September 2026 and tracks 428 professional contacts across them, including 167 with verified work emails and 24 with mobile numbers. Dublin is the largest hub.

This list covers company matches for data security consulting 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 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
78Companies
428Contacts tracked
167Verified emails
24Mobile numbers
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The 25 largest data security consulting firms based in Ireland

Ranked by team size
Top 25 of 78 company matches for data security consulting firms 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 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
2Exact 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
3Exact 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
4Exact 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
5Exact 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
6Exact 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
7Exact 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
8Exact 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
9Exact 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
10Exact 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
11Exact matchIreland11-5010 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 · Sep 1, 2026 · View company records in RevenueBase
12Exact 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
13Exact 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
14Exact matchNavan, Ireland11-507 contacts →

Exact match

“At Ambit, we help you stay ahead of the curve.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
15Exact matchDublin, Ireland1-107 contacts →

Exact match

“At Cyberhealth, we specialise in providing cost-effective cybersecurity services tailored specifically for small to medium-sized businesses (SMBs).”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
16Exact 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
17Exact matchCork, Ireland11-506 contacts →

Exact match

“At Panoptic, we know you want to be the kind of business owner who sleeps easy at night.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
18Exact 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
19Exact matchIreland1-106 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 · Sep 1, 2026 · View company records in RevenueBase
20Exact matchDublin, Ireland11-505 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
21Exact matchDublin, Ireland1-105 contacts →

Exact match

“Cybertree Engineers are Information Security Specialists.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
22Exact matchIreland201-5004 contacts →

Exact match

“Advantio, was acquired by Integrity360 in July 2023.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
23Exact matchIreland1-104 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
24Exact matchDublin, Ireland11-504 contacts →

Exact match

“Astris CSP is a specialized IT security and managed services provider dedicated to protecting wealth management firms, family offices, and financial institutions.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
25Exact matchIreland1-104 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 · Sep 1, 2026 · View company records in RevenueBase

Showing 25 of 78 data security consulting firms based in Ireland

See the full list, filter by size, metro and specialty, and access 167 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Data security consulting firms based in Ireland at a glance

As of Sep 1, 2026
39.0%Verified-email coverage
5.6%Mobile-number coverage
5.5Average contacts per company
1-10Median size (employees)
34.6%Largest-city concentration · Dublin
Sep 1, 2026Page data refreshed

Companies by employee count

1-10
55
11-50
18
51-200
4
201-500
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 “data security consulting 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 167 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 “data security consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many data security consulting firms are there based in Ireland?

RevenueBase identified 78 company matches for data security consulting 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?

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

Which city has the most data security consulting firms?

Dublin leads with 27 company records, followed by Sligo (2) 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 167 professional contacts with verified work emails tracked across these 78 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.