Company lists · Data refreshed September 2026

Top 22 Outsourced ciso services based in Ireland

RevenueBase identified 42 company matches for outsourced ciso services associated with Ireland as of September 2026 and tracks 489 professional contacts across them, including 173 with verified work emails. Dublin is the largest hub.

This list covers company matches for outsourced ciso services 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 21, 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 21, 2026 How this list was built
42Companies
489Contacts tracked
173Verified emails
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The 22 largest outsourced ciso services based in Ireland

Ranked by team size
Top 22 of 42 company matches for outsourced ciso services based in Ireland, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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, IrelandHQ recorded Sep 21, 202611-5081 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2Exact matchSandyford, IrelandHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
3Exact matchBlanchardstown, IrelandHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
4Exact matchPortarlington, IrelandHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
5Exact matchIrelandHQ recorded Sep 21, 202651-20011 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6Exact matchDublin, IrelandHQ recorded Sep 21, 20261-109 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7Exact matchSwords, IrelandHQ recorded Sep 21, 202611-509 contacts →

Exact match

“Definitive Solutions Limited was established in to provide a comprehensive outsourced IT Managed Services nationwide (specialising in security) tailored to our clients’ specific…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8Exact matchDublin 2, IrelandHQ recorded Sep 21, 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 · Sep 21, 2026 · View company records in RevenueBase
9Exact matchDublin, IrelandHQ recorded Sep 21, 202611-507 contacts →

Exact match

“Innovating IT Services & Solutions | Everything IT Founded in 2010, Everything IT has grown into a leading provider of managed IT services and solutions, passionately serving over…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10Exact matchStranorlar, IrelandHQ recorded Sep 21, 20261-107 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11Exact matchDublin, IrelandHQ recorded Sep 21, 20261-107 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 21, 2026 · View company records in RevenueBase
12Exact matchNaas, IrelandHQ recorded Sep 21, 20261-105 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 21, 2026 · View company records in RevenueBase
13Exact matchNaas, IrelandHQ recorded Sep 21, 202611-505 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14Exact matchDublin, IrelandHQ recorded Sep 21, 20261-104 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15Exact matchDublin, IrelandHQ recorded Sep 21, 20261-104 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16Exact matchDublin, IrelandHQ recorded Sep 21, 20261-103 contacts →

Exact match

“Independent oversight of your IT solution to assure it complies with required regulations, interface with the IT providers and using clear language reports, provide manageable…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17Exact matchIrelandHQ recorded Sep 21, 2026201-5003 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18Exact matchCastletroy, IrelandHQ recorded Sep 21, 20261-103 contacts →

Exact match

“Tarbh Tech was established in 2018 to address the Public Cloud and IT challenges faced by Irish small and medium enterprises, focusing on efficiency, automation, and attainable…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19Exact matchSwords, IrelandHQ recorded Sep 21, 20261-102 contacts →

Exact match

“Cyber Security Consultancy services are delivered by a team of experienced in-house consultants.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20Exact matchDonabate, IrelandHQ recorded Sep 21, 20261-102 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21Exact matchCork, IrelandHQ recorded Sep 21, 20261-102 contacts →

Exact match

“Secure Target provides Fractional CISO and strategic cybersecurity advisory services to organisations that need senior security leadership, without the overhead of a full-time…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22Exact matchCork, IrelandHQ recorded Sep 21, 20261-101 contacts →

Exact match

“GEOD Consulting provides senior IT leadership for growing businesses that need clarity, oversight, and confident decision-making, without hiring a full-time Head of IT.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

Showing 22 of 42 outsourced ciso services based in Ireland

See the full list, filter by size, metro and specialty, and access 173 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Outsourced ciso services based in Ireland at a glance

As of Sep 21, 2026
35.4%Verified-email coverage
11.6Average contacts per company
1-10Median size (employees)
33.3%Largest-city concentration · Dublin
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
26
11-50
11
51-200
4
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 42 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 “outsourced ciso services” 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 173 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 21, 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 “outsourced ciso services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many outsourced ciso services are there based in Ireland?

RevenueBase identified 42 company matches for outsourced ciso services 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 outsourced ciso services?

Dublin leads with 14 company records, followed by Cork (2) and Naas (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 173 professional contacts with verified work emails tracked across these 42 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 21, 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.