Company lists · Data verified August 2026

Top 22 Cybersecurity incident response firms based in Ireland

Name: Cybersecurity incident response firms based in Ireland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 34 companies tracked

There are 34 cybersecurity incident response firms headquartered in Ireland (RevenueBase, August 2026). RevenueBase tracks 624 professional contacts across them, including 282 with verified work emails and 21 with mobile numbers. Dublin is the largest hub.

This list covers cybersecurity incident response firms headquartered in Ireland, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

34Companies

624Contacts tracked

282Verified emails

21Mobile numbers

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The 22 largest cybersecurity incident response firms based in Ireland

Ranked by team size

Top 22 of 34 cybersecurity incident response firms based in Ireland, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Smarttech247	Belfast	51-200	188	79
2	BH Consulting	Blanchardstown	11-50	81	14
3	Trend Micro Europe	Cork	5,001-10,000	76	54
4	Secureism	Ireland	11-50	63	25
5	Threatscape	Sandyford	11-50	38	30
6	Cloudguard	Belfast	11-50	33	23
7	Commsec Cyber Security	n/a	11-50	22	8
8	Vmgroup	n/a	11-50	16	11
9	Cyber Armed Security	Dublin	11-50	14	4
10	ATORO	n/a	11-50	13	1
11	Penteor	Rathcoole	11-50	12	1
12	Enterprise Defence	Sligo	11-50	10	6
13	Secora Consulting LTD	Stranorlar	1-10	7	7
14	Itus Secure Technologies	Letterkenny	1-10	5	3
15	Integrity360 Europe	n/a	201-500	4	3
16	Securicentrix	n/a	1-10	4	3
17	IT Security People	Skehanagh Clarecastle	1-10	4	3
18	Cybersecure365	Killybegs	1-10	3	3
19	Advice Bytes	Dublin	1-10	3	1
20	Eonta Cybersecurity Compliance	n/a	1-10	2	1
21	Agoa-Ltd	Swords	1-10	2	1
22	Verus Risk Management	n/a	1-10	1	1

Showing 22 of 34 cybersecurity incident response firms based in Ireland

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 282 reachable decision-makers.

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Cybersecurity incident response firms based in Ireland at a glance

As of Aug 28, 2026

1-10Median size (employees)

DublinLargest hub · 8 HQs

21Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

5,001-10,000

Cybersecurity incident response firms by metro

Metro	Companies
Cybersecurity incident response firms in Dublin	8
Cybersecurity incident response firms in Belfast	2
Cybersecurity incident response firms in Sligo	1
Cybersecurity incident response firms in Sandyford	1
Cybersecurity incident response firms in Stranorlar	1
Cybersecurity incident response firms in Dun Laoghaire	1
Cybersecurity incident response firms in Letterkenny	1

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “cybersecurity incident response firms”, with match quality audited by blind human judging, and headquartered in Ireland.
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: Contact records re-verify on a rolling cadence; 0 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many cybersecurity incident response firms are there based in Ireland?

There are 34 cybersecurity incident response firms headquartered in Ireland as of August 2026 (RevenueBase).

What is the largest company on this list?

Smarttech247, headquartered in Belfast, tops this list with the largest team on record.

Which city has the most cybersecurity incident response firms?

Dublin leads with 8 headquartered companies, followed by Belfast (2) and Sligo (1).

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 282 verified decision-maker contacts tracked across these 34 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.