Company lists · Data verified August 2026

Top 25 Cybersecurity consulting for defense based in Ireland

Name: Cybersecurity consulting for defense based in Ireland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 58 companies tracked

There are 58 cybersecurity consulting for defense headquartered in Ireland (RevenueBase, August 2026). RevenueBase tracks 865 professional contacts across them, including 432 with verified work emails and 38 with mobile numbers. Dublin is the largest hub.

This list covers cybersecurity consulting for defense 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.

58Companies

865Contacts tracked

432Verified emails

38Mobile numbers

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The 25 largest cybersecurity consulting for defense based in Ireland

Ranked by team size

Top 25 of 58 cybersecurity consulting for defense 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	Nostra	Dublin	201-500	286	204
2	Conscia	Citywest Business Campus	1,001-5,000	94	28
3	BH Consulting	Blanchardstown	11-50	81	14
4	Secureism	Ireland	11-50	63	25
5	Threatscape	Sandyford	11-50	38	30
6	Cloudguard	Belfast	11-50	33	23
7	Paradyn	n/a	51-200	28	24
8	Commsec Cyber Security	n/a	11-50	22	8
9	Exclusive Networks Ireland	Ardcavan	11-50	16	12
10	Cyber Armed Security	Dublin	11-50	14	4
11	AVR	n/a	51-200	14	2
12	ATORO	n/a	11-50	13	1
13	Penteor	Rathcoole	11-50	12	1
14	Ward Solutions	n/a	51-200	11	7
15	Bunker Technical Solutions	n/a	11-50	11	6
16	Enterprise Defence	Sligo	11-50	10	6
17	Intercept Technologies	Dublin	1-10	8	4
18	Secora Consulting LTD	Stranorlar	1-10	7	7
19	Cyberhealth	Dublin	1-10	7	4
20	NOVI	Dublin	11-50	5	3
21	Cybertree Engineers	Dublin	1-10	5	3
22	Integrity360 Europe	n/a	201-500	4	3
23	Securicentrix	n/a	1-10	4	3
24	Zirona IT & Cybersecurity	n/a	1-10	4	1
25	Cybersecure365	Killybegs	1-10	3	3

Showing 25 of 58 cybersecurity consulting for defense based in Ireland

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 432 reachable decision-makers.

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Cybersecurity consulting for defense based in Ireland at a glance

As of Aug 28, 2026

1-10Median size (employees)

DublinLargest hub · 22 HQs

38Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Cybersecurity consulting for defense by metro

Metro	Companies
Cybersecurity consulting for defense in Dublin	22
Cybersecurity consulting for defense in Sligo	1
Cybersecurity consulting for defense in Sandyford	1
Cybersecurity consulting for defense in Naas	1
Cybersecurity consulting for defense in Stranorlar	1
Cybersecurity consulting for defense in Belfast	1
Cybersecurity consulting for defense in Cahir	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 consulting for defense”, 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 consulting for defense are there based in Ireland?

There are 58 cybersecurity consulting for defense headquartered in Ireland as of August 2026 (RevenueBase).

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 cybersecurity consulting for defense?

Dublin leads with 22 headquartered companies, followed by Sligo (1) and Sandyford (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 432 verified decision-maker contacts tracked across these 58 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.