Company lists · Data refreshed September 2026

Top 21 Cybersecurity advisory and data privacy consulting services based in Ireland

RevenueBase identified 177 company matches for cybersecurity advisory and data privacy consulting services associated with Ireland as of September 2026 and tracks 2,228 professional contacts across them, including 970 with verified work emails and 131 with mobile numbers. Dublin is the largest hub.

This list covers company matches for cybersecurity advisory and data privacy consulting 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 24, 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 24, 2026 How this list was built
177Companies
2,228Contacts tracked
970Verified emails
131Mobile numbers
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The 21 largest cybersecurity advisory and data privacy consulting services based in Ireland

Ranked by team size
Top 21 of 177 company matches for cybersecurity advisory and data privacy consulting services based in Ireland, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 24, 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 12, IrelandHQ recorded Sep 24, 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 24, 2026 · View company records in RevenueBase
2Exact matchCork - London - New York City - Bucharest - Krakow - Belfast, IrelandHQ recorded Sep 24, 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 24, 2026 · View company records in RevenueBase
3Exact matchDublin, IrelandHQ recorded Sep 24, 202611-5081 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
4Exact matchDublin, IrelandHQ recorded Sep 24, 202611-5065 contacts →

Exact match

“Secureism is founded by the brains who were awarded for their contribution to secure the cyber space on national as well as international level.”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
5Exact matchDublin 24, IrelandHQ recorded Sep 24, 202651-20063 contacts →

Exact match

“The technology landscape may be changing every day, but with a team of internationally accredited experts right here in Ireland, HCS can navigate your organisation across its…”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
6Exact matchLeopardstown, IrelandHQ recorded Sep 24, 202651-20035 contacts →

Exact match

“Founded by Mastercard and IBM in 2018, Trūata specializes in privacy-enhancing technologies for privacy risk assessment, de-identification, and true anonymization of data.”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
7Exact matchSandyford, IrelandHQ recorded Sep 24, 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 24, 2026 · View company records in RevenueBase
8Exact matchBlanchardstown, IrelandHQ recorded Sep 24, 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 24, 2026 · View company records in RevenueBase
9Exact matchDublin, IrelandHQ recorded Sep 24, 202611-5015 contacts →

Exact match

“We Simplify Cyber Security.”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
10Exact matchCitywest, IrelandHQ recorded Sep 24, 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 24, 2026 · View company records in RevenueBase
11Exact matchDunshaughlin, IrelandHQ recorded Sep 24, 202611-5013 contacts →

Exact match

“Since 2005, DataTrust has been helping businesses across Ireland turn technology from a business risk into a competitive advantage.”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
12Exact matchDublin 18, IrelandHQ recorded Sep 24, 20261-1013 contacts →

Exact match

“Radium is based in Dublin, Ireland, and delivers a range of professional IT services to suit all business needs including IT Consulting, Technical Support Helpdesk, Managed IT…”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
13Exact matchPortarlington, IrelandHQ recorded Sep 24, 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 24, 2026 · View company records in RevenueBase
14Exact matchDublin, IrelandHQ recorded Sep 24, 202611-5012 contacts →

Exact match

“A GLOBAL DATA PROTECTION, PRIVACY AND AI GOVERNANCE CONSULTANCY Pembroke Privacy is an award winning, Data Protection, Privacy & AI Governance consultancy with offices in Dublin…”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
15Exact matchDublin, IrelandHQ recorded Sep 24, 202611-5012 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 24, 2026 · View company records in RevenueBase
16Exact matchIrelandHQ recorded Sep 24, 202651-20011 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
17Exact matchSligo, IrelandHQ recorded Sep 24, 202611-5010 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
18Exact matchWaterford, IrelandHQ recorded Sep 24, 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 · Sep 24, 2026 · View company records in RevenueBase
19Exact matchDublin, IrelandHQ recorded Sep 24, 202611-509 contacts →

Exact match

“At Daynt, we are a boutique technology and professional services firm dedicated to helping startups, SMEs, and growing enterprises navigate their digital transformation journeys.”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
20Exact matchDublin, IrelandHQ recorded Sep 24, 202611-509 contacts →

Exact match

“We help companies achieve their goals by identifying the gap between where they are and where they need to be, by ensuring the deployment of best-fit technologies, the first time…”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
21Exact matchWexford, IrelandHQ recorded Sep 24, 20261-109 contacts →

Exact match

“Castlebridge helps people do great things with data by putting data to work smartly, safely, and with an eye on ethics and compliance.”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase

Showing 21 of 177 cybersecurity advisory and data privacy consulting services based in Ireland

See the full list, filter by size, metro and specialty, and access 970 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Cybersecurity advisory and data privacy consulting services based in Ireland at a glance

As of Sep 24, 2026
43.5%Verified-email coverage
5.9%Mobile-number coverage
12.6Average contacts per company
1-10Median size (employees)
38.4%Largest-city concentration · Dublin
Sep 24, 2026Page data refreshed

Companies by employee count

1-10
122
11-50
37
51-200
11
201-500
5
501-1,000
2

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 26.0d

Company record updated

Median 76.0d

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 advisory and data privacy consulting 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 970 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 24, 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 advisory and data privacy consulting services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many cybersecurity advisory and data privacy consulting services are there based in Ireland?

RevenueBase identified 177 company matches for cybersecurity advisory and data privacy consulting 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?

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

Which city has the most cybersecurity advisory and data privacy consulting services?

Dublin leads with 68 company records, followed by Cork (6) and Galway (4).

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 970 professional contacts with verified work emails tracked across these 177 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 24, 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.