Company lists · Data refreshed September 2026
Top 22 IT security consulting firms based in Ireland
RevenueBase identified 92 company matches for IT security consulting firms associated with Ireland as of September 2026 and tracks 838 professional contacts across them, including 417 with verified work emails and 46 with mobile numbers. Dublin is the largest hub.
This list covers company matches for IT security consulting firms 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 4, 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.
The 22 largest IT security consulting firms based in Ireland
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 286 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 4, 2026 · View company records in RevenueBase | |||||
| 2 | 81 contacts → | ||||
Exact match “BH Consulting is an independent consulting firm in operation since 2004.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 3 | 28 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 4, 2026 · View company records in RevenueBase | |||||
| 4 | 22 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 4, 2026 · View company records in RevenueBase | |||||
| 5 | 20 contacts → | ||||
Exact match “CREST-certified offensive security and continuous exposure management, delivered through a single SaaS platform.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 6 | 16 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 4, 2026 · View company records in RevenueBase | |||||
| 7 | 16 contacts → | ||||
Exact match “VMGroup is a global firm providing extensive knowledge and expertise in the areas of Cyber Security & Compliance, Digital forensics, Electronic Discovery, and IT Audits.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 8 | 13 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 4, 2026 · View company records in RevenueBase | |||||
| 9 | 13 contacts → | ||||
Exact match “Atoro is a global team of elite cybersecurity consultants, cloud architects, engineers and CISOs with a singular ambition: to help emerging businesses safeguard their data…” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 10 | 12 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 4, 2026 · View company records in RevenueBase | |||||
| 11 | 11 contacts → | ||||
Exact match “Ward Solutions is Ireland’s largest Information Security provider.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 12 | 10 contacts → | ||||
Exact match “Enterprise Defence are an award winning team of cyber security specialists.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 13 | 8 contacts → | ||||
Exact match “Intercept Technologies, the game-changer in advanced monitoring and state-of-the-art tooling, offering unparalleled identification and remediation of potential exposures and…” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 14 | 8 contacts → | ||||
Exact match “Ripplecom delivers telecoms and IT security that really work for business.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 15 | 7 contacts → | ||||
Exact match “Secora Consulting are experts in cybersecurity and risk mitigation.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 16 | 7 contacts → | ||||
Exact match “At Cyberhealth, we specialise in providing cost-effective cybersecurity services tailored specifically for small to medium-sized businesses (SMBs).” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 17 | 7 contacts → | ||||
Exact match “Leacam offers security-first IT support services that help protect your business, minimise the number and severity of security incidents, and reduces your overall IT costs.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 18 | 6 contacts → | ||||
Exact match “At Panoptic, we know you want to be the kind of business owner who sleeps easy at night.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 19 | 6 contacts → | ||||
Exact match “TUSA IT helps your business to leverage IT Solutions to keep you secure and drive your business goals.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 20 | 5 contacts → | ||||
Exact match “Netfocus IT Solutions provides a comprehensive range of managed IT and cybersecurity services, supporting businesses in maintaining system uptime, safeguarding data, and enhancing…” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 21 | 5 contacts → | ||||
Exact match “Novi delivers security-oriented IT services that reduce risk and enable growth.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 22 | 5 contacts → | ||||
Exact match “Cybertree Engineers are Information Security Specialists.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “IT security consulting firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 22 of 92 IT security consulting firms based in Ireland
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IT security consulting firms based in Ireland at a glance
As of Sep 4, 2026Companies by employee count
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
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 “IT security consulting firms” 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 417 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 4, 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 “IT security consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many IT security consulting firms are there based in Ireland?
RevenueBase identified 92 company matches for IT security consulting firms 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 IT security consulting firms?
Dublin leads with 37 company records, followed by Cork (3) and Sligo (2).
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 417 professional contacts with verified work emails tracked across these 92 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 4, 2026.
Ready to reach these companies? Verified emails and direct dials for all 92 IT security consulting firms based in Ireland. Start with a free account, no credit card.
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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.
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Company intelligence · public preview
Top 22 IT security consulting firms based in Ireland
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 92 matching company records for IT security consulting firms based in Ireland, with 838 tracked contacts and 417 verified work emails.
This public preview shows 22 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 4, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 22 IT security consulting firms based in Ireland
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Nostranostra.ieHQ: Dublin 12, IrelandReported employees: 201-500 | Dublin 12, Ireland | 201-500 | Exact match | 286 contacts → |
“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 description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  BH Consultingbhconsulting.ieHQ: Blanchardstown, IrelandReported employees: 11-50 | Blanchardstown, Ireland | 11-50 | Exact match | 81 contacts → |
“BH Consulting is an independent consulting firm in operation since 2004.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Paradynparadyn.ieHQ: Sandyford, IrelandReported employees: 51-200 | Sandyford, Ireland | 51-200 | Exact match | 28 contacts → |
“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 description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Commsec Cyber Securitycommsec.ieHQ: IrelandReported employees: 11-50 | Ireland | 11-50 | Exact match | 22 contacts → |
“CommSec is an Irish cyber security company helping organisations protect their systems, data, and operations against modern cyber threats.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Whatsexposedwhats.exposedHQ: Castlebar, IrelandReported employees: 11-50 | Castlebar, Ireland | 11-50 | Exact match | 20 contacts → |
“CREST-certified offensive security and continuous exposure management, delivered through a single SaaS platform.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Exclusive Networks Irelandexclusive-networks.comHQ: Citywest, IrelandReported employees: 11-50 | Citywest, Ireland | 11-50 | Exact match | 16 contacts → |
“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 description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Vmgroupvmgroup.ieHQ: Ballycoolin, IrelandReported employees: 11-50 | Ballycoolin, Ireland | 11-50 | Exact match | 16 contacts → |
“VMGroup is a global firm providing extensive knowledge and expertise in the areas of Cyber Security & Compliance, Digital forensics, Electronic Discovery, and IT Audits.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Radium Technologiesradium.ieHQ: IrelandReported employees: 1-10 | Ireland | 1-10 | Exact match | 13 contacts → |
“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 description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  ATOROatoro.ioHQ: IrelandReported employees: 11-50 | Ireland | 11-50 | Exact match | 13 contacts → |
“Atoro is a global team of elite cybersecurity consultants, cloud architects, engineers and CISOs with a singular ambition: to help emerging businesses safeguard their data…” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Penteorpenteor.comHQ: Rathcoole, IrelandReported employees: 11-50 | Rathcoole, Ireland | 11-50 | Exact match | 12 contacts → |
“Our aim is to help organizations defend against cyber-attacks by finding their vulnerabilities in a proactive manner.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Ward Solutionsward.ie HQ: IrelandReported employees: 51-200 | Ireland | 51-200 | Exact match | 11 contacts → |
“Ward Solutions is Ireland’s largest Information Security provider.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Enterprise Defenceenterprisedefence.com HQ: Sligo, IrelandReported employees: 11-50 | Sligo, Ireland | 11-50 | Exact match | 10 contacts → |
“Enterprise Defence are an award winning team of cyber security specialists.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Intercept Technologiesintercept.ieHQ: Dublin, IrelandReported employees: 1-10 | Dublin, Ireland | 1-10 | Exact match | 8 contacts → |
“Intercept Technologies, the game-changer in advanced monitoring and state-of-the-art tooling, offering unparalleled identification and remediation of potential exposures and…” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Ripplecom L A Viatel Group Companyripplecom.netHQ: Limerick Lk, IrelandReported employees: 11-50 | Limerick Lk, Ireland | 11-50 | Exact match | 8 contacts → |
“Ripplecom delivers telecoms and IT security that really work for business.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Secora Consulting LTDsecoraconsulting.comHQ: Stranorlar, IrelandReported employees: 1-10 | Stranorlar, Ireland | 1-10 | Exact match | 7 contacts → |
“Secora Consulting are experts in cybersecurity and risk mitigation.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Cyberhealthcyberhealth.ieHQ: Dublin, IrelandReported employees: 1-10 | Dublin, Ireland | 1-10 | Exact match | 7 contacts → |
“At Cyberhealth, we specialise in providing cost-effective cybersecurity services tailored specifically for small to medium-sized businesses (SMBs).” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Leacam Technology Consulting LTDleacam.ieHQ: Dublin, IrelandReported employees: 1-10 | Dublin, Ireland | 1-10 | Exact match | 7 contacts → |
“Leacam offers security-first IT support services that help protect your business, minimise the number and severity of security incidents, and reduces your overall IT costs.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Panoptic IT Solutionspanoptic.ieHQ: Kilkenny, IrelandReported employees: 11-50 | Kilkenny, Ireland | 11-50 | Exact match | 6 contacts → |
“At Panoptic, we know you want to be the kind of business owner who sleeps easy at night.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Tusa ITtusa.ieHQ: Ballycoolen, IrelandReported employees: 1-10 | Ballycoolen, Ireland | 1-10 | Exact match | 6 contacts → |
“TUSA IT helps your business to leverage IT Solutions to keep you secure and drive your business goals.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Netfocus IT Solutionsnetfocus.ieHQ: Naas, IrelandReported employees: 1-10 | Naas, Ireland | 1-10 | Exact match | 5 contacts → |
“Netfocus IT Solutions provides a comprehensive range of managed IT and cybersecurity services, supporting businesses in maintaining system uptime, safeguarding data, and enhancing…” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  NOVInovi.ieHQ: Naas, IrelandReported employees: 11-50 | Naas, Ireland | 11-50 | Exact match | 5 contacts → |
“Novi delivers security-oriented IT services that reduce risk and enable growth.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Cybertree Engineerscybertree.ieHQ: Dublin, IrelandReported employees: 1-10 | Dublin, Ireland | 1-10 | Exact match | 5 contacts → |
“Cybertree Engineers are Information Security Specialists.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 22 of 92 company matches
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IT security consulting firms: dataset insights
September 4, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
92 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 4, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for IT security consulting firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many IT security consulting firms did RevenueBase find based in Ireland?
The saved snapshot records 92 matching company records, 838 tracked contacts and 417 verified emails. The public preview displays 22 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 4, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
IT security consulting firms by geography
- IT security consulting firms based in the United States
- IT security consulting firms based in the United Kingdom
- IT security consulting firms based in Brazil
- IT security consulting firms based in France
- IT security consulting firms based in Canada
- IT security consulting firms based in Germany
- IT security consulting firms based in Australia
- IT security consulting firms based in the Netherlands
- IT security consulting firms based in Italy
- IT security consulting firms based in Spain
- IT security consulting firms based in Mexico
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Browse the directory
Cite this list
RevenueBase Data Team. Top 22 IT security consulting firms based in Ireland. Snapshot: September 4, 2026. https://revenuebase.ai/companies/it-security-consulting-firms/ireland.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- IT security consulting firms based in the United States
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- IT security consulting firms based in Brazil
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Company intelligence · public preview
Top 22 IT security consulting firms based in Ireland
RevenueBase records 92 matching company records for IT security consulting firms based in Ireland, with 838 tracked contacts and 417 verified work emails.
This public preview shows 22 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 4, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 22 IT security consulting firms based in Ireland
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Nostranostra.ie HQ: Dublin 12, IrelandReported employees: 201-500 | Dublin 12, Ireland | 201-500 | Exact match | 286 contacts → |
“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 description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | BH Consultingbhconsulting.ie HQ: Blanchardstown, IrelandReported employees: 11-50 | Blanchardstown, Ireland | 11-50 | Exact match | 81 contacts → |
“BH Consulting is an independent consulting firm in operation since 2004.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Paradynparadyn.ie HQ: Sandyford, IrelandReported employees: 51-200 | Sandyford, Ireland | 51-200 | Exact match | 28 contacts → |
“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 description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Commsec Cyber Securitycommsec.ie HQ: IrelandReported employees: 11-50 | Ireland | 11-50 | Exact match | 22 contacts → |
“CommSec is an Irish cyber security company helping organisations protect their systems, data, and operations against modern cyber threats.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Whatsexposedwhats.exposed HQ: Castlebar, IrelandReported employees: 11-50 | Castlebar, Ireland | 11-50 | Exact match | 20 contacts → |
“CREST-certified offensive security and continuous exposure management, delivered through a single SaaS platform.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Exclusive Networks Irelandexclusive-networks.com HQ: Citywest, IrelandReported employees: 11-50 | Citywest, Ireland | 11-50 | Exact match | 16 contacts → |
“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 description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Vmgroupvmgroup.ie HQ: Ballycoolin, IrelandReported employees: 11-50 | Ballycoolin, Ireland | 11-50 | Exact match | 16 contacts → |
“VMGroup is a global firm providing extensive knowledge and expertise in the areas of Cyber Security & Compliance, Digital forensics, Electronic Discovery, and IT Audits.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Radium Technologiesradium.ie HQ: IrelandReported employees: 1-10 | Ireland | 1-10 | Exact match | 13 contacts → |
“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 description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | ATOROatoro.io HQ: IrelandReported employees: 11-50 | Ireland | 11-50 | Exact match | 13 contacts → |
“Atoro is a global team of elite cybersecurity consultants, cloud architects, engineers and CISOs with a singular ambition: to help emerging businesses safeguard their data…” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Penteorpenteor.com HQ: Rathcoole, IrelandReported employees: 11-50 | Rathcoole, Ireland | 11-50 | Exact match | 12 contacts → |
“Our aim is to help organizations defend against cyber-attacks by finding their vulnerabilities in a proactive manner.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Ward Solutionsward.ie HQ: IrelandReported employees: 51-200 | Ireland | 51-200 | Exact match | 11 contacts → |
“Ward Solutions is Ireland’s largest Information Security provider.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Enterprise Defenceenterprisedefence.com HQ: Sligo, IrelandReported employees: 11-50 | Sligo, Ireland | 11-50 | Exact match | 10 contacts → |
“Enterprise Defence are an award winning team of cyber security specialists.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Intercept Technologiesintercept.ie HQ: Dublin, IrelandReported employees: 1-10 | Dublin, Ireland | 1-10 | Exact match | 8 contacts → |
“Intercept Technologies, the game-changer in advanced monitoring and state-of-the-art tooling, offering unparalleled identification and remediation of potential exposures and…” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Ripplecom L A Viatel Group Companyripplecom.net HQ: Limerick Lk, IrelandReported employees: 11-50 | Limerick Lk, Ireland | 11-50 | Exact match | 8 contacts → |
“Ripplecom delivers telecoms and IT security that really work for business.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Secora Consulting LTDsecoraconsulting.com HQ: Stranorlar, IrelandReported employees: 1-10 | Stranorlar, Ireland | 1-10 | Exact match | 7 contacts → |
“Secora Consulting are experts in cybersecurity and risk mitigation.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Cyberhealthcyberhealth.ie HQ: Dublin, IrelandReported employees: 1-10 | Dublin, Ireland | 1-10 | Exact match | 7 contacts → |
“At Cyberhealth, we specialise in providing cost-effective cybersecurity services tailored specifically for small to medium-sized businesses (SMBs).” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Leacam Technology Consulting LTDleacam.ie HQ: Dublin, IrelandReported employees: 1-10 | Dublin, Ireland | 1-10 | Exact match | 7 contacts → |
“Leacam offers security-first IT support services that help protect your business, minimise the number and severity of security incidents, and reduces your overall IT costs.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Panoptic IT Solutionspanoptic.ie HQ: Kilkenny, IrelandReported employees: 11-50 | Kilkenny, Ireland | 11-50 | Exact match | 6 contacts → |
“At Panoptic, we know you want to be the kind of business owner who sleeps easy at night.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Tusa ITtusa.ie HQ: Ballycoolen, IrelandReported employees: 1-10 | Ballycoolen, Ireland | 1-10 | Exact match | 6 contacts → |
“TUSA IT helps your business to leverage IT Solutions to keep you secure and drive your business goals.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Netfocus IT Solutionsnetfocus.ie HQ: Naas, IrelandReported employees: 1-10 | Naas, Ireland | 1-10 | Exact match | 5 contacts → |
“Netfocus IT Solutions provides a comprehensive range of managed IT and cybersecurity services, supporting businesses in maintaining system uptime, safeguarding data, and enhancing…” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | NOVInovi.ie HQ: Naas, IrelandReported employees: 11-50 | Naas, Ireland | 11-50 | Exact match | 5 contacts → |
“Novi delivers security-oriented IT services that reduce risk and enable growth.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Cybertree Engineerscybertree.ie HQ: Dublin, IrelandReported employees: 1-10 | Dublin, Ireland | 1-10 | Exact match | 5 contacts → |
“Cybertree Engineers are Information Security Specialists.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 22 of 92 company matches
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IT security consulting firms: dataset insights
September 4, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
92 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 4, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for IT security consulting firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many IT security consulting firms did RevenueBase find based in Ireland?
The saved snapshot records 92 matching company records, 838 tracked contacts and 417 verified emails. The public preview displays 22 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 4, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 22 IT security consulting firms based in Ireland. Snapshot: September 4, 2026. https://revenuebase.ai/companies/it-security-consulting-firms/ireland.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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