Company lists · Data refreshed September 2026

Top 24 Manufacturing cybersecurity companies based in Ireland

RevenueBase identified 47 manufacturing cybersecurity companies headquartered in Ireland as of September 2026 and tracks 1,256 professional contacts across them, including 663 with verified work emails and 61 with mobile numbers. Dublin is the largest hub.

This list covers manufacturing cybersecurity companies headquartered in Ireland, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 5, 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 HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review
47Companies
1,256Contacts tracked
663Verified emails
61Mobile numbers
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The 24 largest manufacturing cybersecurity companies based in Ireland

Ranked by team size
Top 24 of 47 manufacturing cybersecurity companies based in Ireland, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names manufacturing cybersecurity companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
NostraIndirect evidence
Dublin 12, IrelandHQ checked Sep 5, 2026201-500288

“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.”

Source: company website · checked Sep 5, 2026
2
Smarttech247Indirect evidence
Cork - London - New York City - Bucharest - Krakow - Belfast, IrelandHQ checked Sep 5, 202651-200189

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

Source: company website · checked Sep 5, 2026
3
TitanhqPartial evidence
Galway, IrelandHQ checked Sep 5, 202651-20077

“TitanHQ and Redstor have merged to launch CyberSentriq, a cybersecurity champion built for MSPs and their customers.”

Source: company website · checked Sep 5, 2026
4
Trend Micro EuropeIndirect evidence
Cork, IrelandHQ checked Sep 5, 20265,001-10,00075
Source: company website · checked Sep 5, 2026
5
HCSIndirect evidence
Dublin 24, IrelandHQ checked Sep 5, 202651-20063

“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…”

Source: company website · checked Sep 5, 2026
6
ThreatscapeIndirect evidence
Dublin, IrelandHQ checked Sep 5, 202611-5036

“We are a pure play IT security company, which allows us to focus solely on protecting your business from cyber threats.”

Source: company website · checked Sep 5, 2026
7
Commsec Cyber SecurityIndirect evidence
Blanchardstown, IrelandHQ checked Sep 5, 202611-5021

“CommSec is an Irish cyber security company helping organisations protect their systems, data, and operations against modern cyber threats.”

Source: company website · checked Sep 5, 2026
8
DectarIndirect evidence
Dublin, IrelandHQ checked Sep 5, 202611-5020

“Dectar is an innovative European cyber security firm focused on proactively preventing cyberattacks and protecting the critical data at the core of every organization.”

Source: company website · checked Sep 5, 2026
9
Viso Cyber SecurityIndirect evidence
Dublin, IrelandHQ checked Sep 5, 202611-5015

“We Simplify Cyber Security.”

Source: company website · checked Sep 5, 2026
10Citywest, IrelandHQ checked Sep 5, 202611-5015

“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…”

Source: company website · checked Sep 5, 2026
11
ATOROIndirect evidence
Portarlington, IrelandHQ checked Sep 5, 202611-5013

“Atoro is a cyber compliance consultancy for scaling software companies, and Europe's first ISO 42001 certified consultancy.”

Source: company website · checked Sep 5, 2026
12
Nova LeahPartial evidence
Dundalk, IrelandHQ checked Sep 5, 202611-5011

“Nova Leah is a world leader in the provision of cybersecurity risk management solutions for medical device manufacturers and healthcare providers.”

Source: company website · checked Sep 5, 2026
13
ECN TechnologiesIndirect evidence
Mullingar, IrelandHQ checked Sep 5, 20261-1010

“Industrial Automation & OT Cyber Security Services”

Source: company website · checked Sep 5, 2026
14
Enterprise DefenceIndirect evidence
Sligo, IrelandHQ checked Sep 5, 202611-5010

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

Source: company website · checked Sep 5, 2026
15Cork, IrelandHQ checked Sep 5, 20261-109

“DataLogiX specialise in securing Operational Technology Networks used by global organisations.”

Source: company website · checked Sep 5, 2026
16
Intercept TechnologiesIndirect evidence
Dublin 2, IrelandHQ checked Sep 5, 20261-108

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

Source: company website · checked Sep 5, 2026
17
Secora Consulting LTDPartial evidence
Stranorlar, IrelandHQ checked Sep 5, 20261-107

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

Source: company website · checked Sep 5, 2026
18
CyberhealthPartial evidence
Dublin, IrelandHQ checked Sep 5, 20261-107

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

Source: company website · checked Sep 5, 2026
19
Itus Secure TechnologiesPartial evidence
Letterkenny, IrelandHQ checked Sep 5, 20261-105

“At ITUS we believe that effective cybersecurity begins with understanding cyber risk for your business.”

Source: company website · checked Sep 5, 2026
20
NOVIIndirect evidence
Naas, IrelandHQ checked Sep 5, 202611-505

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

Source: company website · checked Sep 5, 2026
21
Advice BytesIndirect evidence
Dublin, IrelandHQ checked Sep 5, 20261-104

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

Source: company website · checked Sep 5, 2026
22
Zirona IT & CybersecurityPartial evidence
Dublin 15, IrelandHQ checked Sep 5, 20261-104

“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…”

Source: company website · checked Sep 5, 2026
23
CytekonePartial evidence
Dublin, IrelandHQ checked Sep 5, 20261-103

“CytekOne simplifies the complexity of cybersecurity by unifying various protective layers and leveraging AI.”

Source: company website · checked Sep 5, 2026
24
Integrity360 EuropeIndirect evidence
IrelandHQ checked Sep 5, 2026201-5003

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

Source: company website · checked Sep 5, 2026

Showing 24 of 47 manufacturing cybersecurity companies based in Ireland

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Manufacturing cybersecurity companies based in Ireland at a glance

As of Sep 5, 2026
1-10Median size (employees)
DublinLargest hub · 18 HQs
61Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
24
11-50
15
51-200
4
201-500
2
501-1,000
1
5,001-10,000
1

Verified emails by last verification

0–30
613
31–60
46
61–90
0
90–180
1
180+
3

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among manufacturing cybersecurity companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.

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
Companies headquartered in Ireland whose own description of what they do matches “manufacturing cybersecurity companies”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among manufacturing cybersecurity companies, and records with no verified work email. Companies headquartered outside Ireland are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and an evidence rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 663 across the full list. 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 5, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

How many manufacturing cybersecurity companies are there based in Ireland?

RevenueBase identified 47 manufacturing cybersecurity companies headquartered in Ireland as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Nostra, headquartered in Dublin, tops this list with the largest team on record.

Which city has the most manufacturing cybersecurity companies?

Dublin leads with 18 headquartered companies, 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 the top results, verified emails and direct dials included. Upgrading unlocks all 663 verified decision-maker contacts tracked across these 47 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 5, 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.