Company lists · Data verified August 2026

Top 25 Data security consulting firms based in Ireland

Name: Data security consulting firms based in Ireland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 78 companies tracked

There are 78 data security consulting firms headquartered in Ireland (RevenueBase, August 2026). RevenueBase tracks 428 professional contacts across them, including 167 with verified work emails and 24 with mobile numbers. Dublin is the largest hub.

This list covers data security consulting 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.

78Companies

428Contacts tracked

167Verified emails

24Mobile numbers

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The 25 largest data security consulting firms based in Ireland

Ranked by team size

Top 25 of 78 data security consulting 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	BH Consulting	Blanchardstown	11-50	81	14
2	Cloudguard	Belfast	11-50	33	23
3	Paradyn	n/a	51-200	28	24
4	Commsec Cyber Security	n/a	11-50	22	8
5	Vmgroup	n/a	11-50	16	11
6	AVR	n/a	51-200	14	2
7	ATORO	n/a	11-50	13	1
8	Safe Harbour Security	Dublin	1-10	13	1
9	Ward Solutions	n/a	51-200	11	7
10	Enterprise Defence	Sligo	11-50	10	6
11	Onaware	n/a	11-50	10	5
12	Intercept Technologies	Dublin	1-10	8	4
13	Secora Consulting LTD	Stranorlar	1-10	7	7
14	Ambit Compliance	Navan	11-50	7	6
15	Cyberhealth	Dublin	1-10	7	4
16	Leacam Technology Consulting LTD	Dublin	1-10	7	3
17	Panoptic IT Solutions	Cork	11-50	6	5
18	Tusa IT	Ballycoolen	1-10	6	3
19	The Compliance Team	Ireland	1-10	6	2
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	Astris CSP	Dublin	11-50	4	2
25	Zirona IT & Cybersecurity	n/a	1-10	4	1

Showing 25 of 78 data security consulting firms based in Ireland

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 167 reachable decision-makers.

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Data security consulting firms based in Ireland at a glance

As of Aug 28, 2026

1-10Median size (employees)

DublinLargest hub · 27 HQs

24Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

Data security consulting firms by metro

Metro	Companies
Data security consulting firms in Dublin	27
Data security consulting firms in Sligo	2
Data security consulting firms in Belfast	2
Data security consulting firms in Cork	2
Data security consulting firms in Waterford	2
Data security consulting firms in Swords	2
Data security consulting firms in Tralee	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 “data security consulting 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 data security consulting firms are there based in Ireland?

There are 78 data security consulting firms headquartered in Ireland as of August 2026 (RevenueBase).

What is the largest company on this list?

BH Consulting, headquartered in Blanchardstown, tops this list with the largest team on record.

Which city has the most data security consulting firms?

Dublin leads with 27 headquartered companies, followed by Sligo (2) 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 167 verified decision-maker contacts tracked across these 78 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.