Company lists · Data refreshed September 2026
Top 23 IT security companies based in Greece
RevenueBase identified 64 company matches for IT security companies associated with Greece as of September 2026 and tracks 1,362 professional contacts across them, including 658 with verified work emails and 31 with mobile numbers. Athens is the largest hub.
This list covers company matches for IT security companies associated with Greece, 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 23 largest IT security companies based in Greece
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 184 contacts → | ||||
Exact match “CENSUS is a cybersecurity engineering powerhouse.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 2 | 157 contacts → | ||||
Exact match “ADACOM, a Byte subsidiary, enables security online for Financial Institutions, Telecom Operators, Governments and Large Organizations, in more than 30 countries in EMEA.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 3 | 25 contacts → | ||||
Exact match “Our company's structure is based on a modern and flexible model ensuring adaptation in running developments but also in continuous requirements and needs of our clients.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 4 | 20 contacts → | ||||
Exact match “At ThreatScene, we are committed to setting new standards in cybersecurity by delivering exceptional, high-quality services designed to protect your most valuable digital assets.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 5 | 19 contacts → | ||||
Exact match “With constant integration of technology in every aspect of an organisation, information security is something that everyone needs.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 6 | 17 contacts → | ||||
Exact match “Alphabit is an expert Cybersecurity services provider.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 7 | 12 contacts → | ||||
Exact match “CyberNoesis was established in 2015 by cyber security specialists with extensive experience in enterprise, industrial and telecommunications sectors.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 8 | 12 contacts → | ||||
Exact match “GeniusNet SA is a High tech Cybersecurity and Smart security Company specialized on Supporting your business!” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 9 | 11 contacts → | ||||
Exact match “We are here to jointly understand and address in practice how Cybersecurity can be a business enabler- Providing Cybersecurity services, industry-specific, vendor neutral and…” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 10 | 9 contacts → | ||||
Exact match “Accessit is a dynamically developing company that provides integrated solutions in the field of Internet.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 11 | 7 contacts → | ||||
Exact match “A cyber security company that offers bespoke, impact-centric services through envisioning, designing, crafting and providing critical Cyber Security Solutions and advanced A.I.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 12 | 7 contacts → | ||||
Exact match “Established in 2024, TÜV AUSTRIA Trust IT stands as a subsidiary of TÜV AUSTRIA, specializing in comprehensive information security and IT-related services.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 13 | 7 contacts → | ||||
Exact match “Η Cysoft Σύμβουλοι Πληροφορικής ΕΠΕ ιδρύθηκε το 1998 για να διαθέσει στην Ελληνική Αγορά επιλεγμένα προϊόντα και λύσεις ασφάλειας πληροφορικής.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 14 | 7 contacts → | ||||
Exact match “InnoSec is a spin-off company, involved in state-of-the-art research in the field of information security.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 15 | 6 contacts → | ||||
Exact match “Logisek is a leading Cyber Security and IT services firm, founded in Greece in 2008 and expanded to Romania in 2019.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 16 | 6 contacts → | ||||
Exact match “PeS Cybersecurity, your trusted partner in safeguarding your digital domain, born from the dynamic collaboration between two industry leaders, Pylones Hellas, and eSafe, brings…” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 17 | 6 contacts → | ||||
Exact match “At HEADNET, we deliver advanced networking and cybersecurity solutions designed to meet your unique business needs.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 18 | 5 contacts → | ||||
Exact match “Started in is now one of the leading companies in managed security services.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 19 | 4 contacts → | ||||
Exact match “At CyberOne we select and integrate the most advanced IT security solutions to address the evolving needs of corporate customers who must protect their information repositories…” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 20 | 4 contacts → | ||||
Exact match “Privately held company providing cyber-security services, specializing in Digital Forensics / Incident Response (DFIR), malware analysis.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 21 | 3 contacts → | ||||
Exact match “Raven Cyber Security is a startup specializing in cybersecurity services, including penetration testing, production of cyber security learning courses, and software development.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 22 | 2 contacts → | ||||
Exact match “We are a cyber security firm based in Greece operating in the EMEA region.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 23 | 2 contacts → | ||||
Exact match “Η CyberX, ιδρύθηκε με στόχο να προσφέρει καινοτόμες υπηρεσίες Ασφάλειας Πληροφοριακών Συστημάτων (Information Security Services & Cyber Security Services), χτίζοντας μία ασπίδα…” 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 companies”. 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 23 of 64 IT security companies based in Greece
See the full list, filter by size, metro and specialty, and access 658 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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IT security companies based in Greece 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 Greece whose business descriptions match “IT security companies” 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 658 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.
IT security companies by metro
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 companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many IT security companies are there based in Greece?
RevenueBase identified 64 company matches for IT security companies associated with Greece 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?
Census tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most IT security companies?
Athens leads with 31 company records, followed by Attica (2) and Kallithea (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 658 professional contacts with verified work emails tracked across these 64 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 64 IT security companies based in Greece. 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.
More company lists
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- IT security companies based in the United States
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Company intelligence · public preview
Top 23 IT security companies based in Greece
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 64 matching company records for IT security companies based in Greece, with 1,362 tracked contacts and 658 verified work emails.
This public preview shows 23 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 23 IT security companies based in Greece
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 |  Censuscensus-labs.comHQ: Athens, GreeceReported employees: 51-200 | Athens, Greece | 51-200 | Exact match | 184 contacts → |
“CENSUS is a cybersecurity engineering powerhouse.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Adacomadacom.comHQ: Athens, GreeceReported employees: 51-200 | Athens, Greece | 51-200 | Exact match | 157 contacts → |
“ADACOM, a Byte subsidiary, enables security online for Financial Institutions, Telecom Operators, Governments and Large Organizations, in more than 30 countries in EMEA.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Systecom S.Asystecom.grHQ: Metamorfosi, GreeceReported employees: 11-50 | Metamorfosi, Greece | 11-50 | Exact match | 25 contacts → |
“Our company's structure is based on a modern and flexible model ensuring adaptation in running developments but also in continuous requirements and needs of our clients.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Threatscenethreatscene.comHQ: Athens, GreeceReported employees: 11-50 | Athens, Greece | 11-50 | Exact match | 20 contacts → |
“At ThreatScene, we are committed to setting new standards in cybersecurity by delivering exceptional, high-quality services designed to protect your most valuable digital assets.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Twelvesectwelvesec.comHQ: GreeceReported employees: 11-50 | Greece | 11-50 | Exact match | 19 contacts → |
“With constant integration of technology in every aspect of an organisation, information security is something that everyone needs.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Alphabit Cybersecurityalphabit.grHQ: GreeceReported employees: 11-50 | Greece | 11-50 | Exact match | 17 contacts → |
“Alphabit is an expert Cybersecurity services provider.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Cyber Noesiscybernoesis.comHQ: GreeceReported employees: 11-50 | Greece | 11-50 | Exact match | 12 contacts → |
“CyberNoesis was established in 2015 by cyber security specialists with extensive experience in enterprise, industrial and telecommunications sectors.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Geniusnet SAgeniusnet.grHQ: Athens, GreeceReported employees: 11-50 | Athens, Greece | 11-50 | Exact match | 12 contacts → |
“GeniusNet SA is a High tech Cybersecurity and Smart security Company specialized on Supporting your business!” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Cyberflipcyberflip.euHQ: Athens, GreeceReported employees: 1-10 | Athens, Greece | 1-10 | Exact match | 11 contacts → |
“We are here to jointly understand and address in practice how Cybersecurity can be a business enabler- Providing Cybersecurity services, industry-specific, vendor neutral and…” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Accessit LTDaccessit.grHQ: Athens, GreeceReported employees: 11-50 | Athens, Greece | 11-50 | Exact match | 9 contacts → |
“Accessit is a dynamically developing company that provides integrated solutions in the field of Internet.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Memorandummemorandum.grHQ: GreeceReported employees: 11-50 | Greece | 11-50 | Exact match | 7 contacts → |
“A cyber security company that offers bespoke, impact-centric services through envisioning, designing, crafting and providing critical Cyber Security Solutions and advanced A.I.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  TÜV Austria Trust IT GRgr.trustit.tuvaustria.comHQ: Athens, GreeceReported employees: 11-50 | Athens, Greece | 11-50 | Exact match | 7 contacts → |
“Established in 2024, TÜV AUSTRIA Trust IT stands as a subsidiary of TÜV AUSTRIA, specializing in comprehensive information security and IT-related services.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Cysoft LTDcysoft.grHQ: Athens, GreeceReported employees: 1-10 | Athens, Greece | 1-10 | Exact match | 7 contacts → |
“Η Cysoft Σύμβουλοι Πληροφορικής ΕΠΕ ιδρύθηκε το 1998 για να διαθέσει στην Ελληνική Αγορά επιλεγμένα προϊόντα και λύσεις ασφάλειας πληροφορικής.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Innosecinnosec.grHQ: GreeceReported employees: 1-10 | Greece | 1-10 | Exact match | 7 contacts → |
“InnoSec is a spin-off company, involved in state-of-the-art research in the field of information security.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Logiseklogisek.comHQ: Koropi, GreeceReported employees: 11-50 | Koropi, Greece | 11-50 | Exact match | 6 contacts → |
“Logisek is a leading Cyber Security and IT services firm, founded in Greece in 2008 and expanded to Romania in 2019.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | PES Cybersecuritypes-cybersecurity.gr HQ: GreeceReported employees: 1-10 | Greece | 1-10 | Exact match | 6 contacts → |
“PeS Cybersecurity, your trusted partner in safeguarding your digital domain, born from the dynamic collaboration between two industry leaders, Pylones Hellas, and eSafe, brings…” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Headnetheadnet.netHQ: Athens, GreeceReported employees: 1-10 | Athens, Greece | 1-10 | Exact match | 6 contacts → |
“At HEADNET, we deliver advanced networking and cybersecurity solutions designed to meet your unique business needs.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  I-Metrixmetrixnet.comHQ: Athens, GreeceReported employees: 11-50 | Athens, Greece | 11-50 | Exact match | 5 contacts → |
“Started in is now one of the leading companies in managed security services.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Cyberone S.Acyberone.grHQ: Athens, GreeceReported employees: 1-10 | Athens, Greece | 1-10 | Exact match | 4 contacts → |
“At CyberOne we select and integrate the most advanced IT security solutions to address the evolving needs of corporate customers who must protect their information repositories…” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Vital Digital Forensicsv4ensics.grHQ: Athens, GreeceReported employees: 1-10 | Athens, Greece | 1-10 | Exact match | 4 contacts → |
“Privately held company providing cyber-security services, specializing in Digital Forensics / Incident Response (DFIR), malware analysis.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Raven Cybersecurityravensec.euHQ: Heraklion, GreeceReported employees: 1-10 | Heraklion, Greece | 1-10 | Exact match | 3 contacts → |
“Raven Cyber Security is a startup specializing in cybersecurity services, including penetration testing, production of cyber security learning courses, and software development.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Fractisfractis.euHQ: Athens, GreeceReported employees: 1-10 | Athens, Greece | 1-10 | Exact match | 2 contacts → |
“We are a cyber security firm based in Greece operating in the EMEA region.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Cyberx Csiscyberx.grHQ: GreeceReported employees: 1-10 | Greece | 1-10 | Exact match | 2 contacts → |
“Η CyberX, ιδρύθηκε με στόχο να προσφέρει καινοτόμες υπηρεσίες Ασφάλειας Πληροφοριακών Συστημάτων (Information Security Services & Cyber Security Services), χτίζοντας μία ασπίδα…” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 23 of 64 company matches
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IT security companies: 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
64 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 ↗
IT security companies by metro
Questions about this company list
What does Exact match mean for IT security companies?
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 companies did RevenueBase find based in Greece?
The saved snapshot records 64 matching company records, 1,362 tracked contacts and 658 verified emails. The public preview displays 23 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 companies by geography
- IT security companies based in the United States
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- IT security companies based in Brazil
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- IT security companies based in France
- IT security companies based in Australia
- IT security companies based in Germany
- IT security companies based in the Netherlands
- IT security companies based in Spain
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Browse the directory
Cite this list
RevenueBase Data Team. Top 23 IT security companies based in Greece. Snapshot: September 4, 2026. https://revenuebase.ai/companies/it-security-companies/greece.
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 companies based in the United States
- IT security companies based in the United Kingdom
- IT security companies based in Brazil
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Company intelligence · public preview
Top 23 IT security companies based in Greece
RevenueBase records 64 matching company records for IT security companies based in Greece, with 1,362 tracked contacts and 658 verified work emails.
This public preview shows 23 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 23 IT security companies based in Greece
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 | Censuscensus-labs.com HQ: Athens, GreeceReported employees: 51-200 | Athens, Greece | 51-200 | Exact match | 184 contacts → |
“CENSUS is a cybersecurity engineering powerhouse.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Adacomadacom.com HQ: Athens, GreeceReported employees: 51-200 | Athens, Greece | 51-200 | Exact match | 157 contacts → |
“ADACOM, a Byte subsidiary, enables security online for Financial Institutions, Telecom Operators, Governments and Large Organizations, in more than 30 countries in EMEA.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Systecom S.Asystecom.gr HQ: Metamorfosi, GreeceReported employees: 11-50 | Metamorfosi, Greece | 11-50 | Exact match | 25 contacts → |
“Our company's structure is based on a modern and flexible model ensuring adaptation in running developments but also in continuous requirements and needs of our clients.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Threatscenethreatscene.com HQ: Athens, GreeceReported employees: 11-50 | Athens, Greece | 11-50 | Exact match | 20 contacts → |
“At ThreatScene, we are committed to setting new standards in cybersecurity by delivering exceptional, high-quality services designed to protect your most valuable digital assets.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Twelvesectwelvesec.com HQ: GreeceReported employees: 11-50 | Greece | 11-50 | Exact match | 19 contacts → |
“With constant integration of technology in every aspect of an organisation, information security is something that everyone needs.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Alphabit Cybersecurityalphabit.gr HQ: GreeceReported employees: 11-50 | Greece | 11-50 | Exact match | 17 contacts → |
“Alphabit is an expert Cybersecurity services provider.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Cyber Noesiscybernoesis.com HQ: GreeceReported employees: 11-50 | Greece | 11-50 | Exact match | 12 contacts → |
“CyberNoesis was established in 2015 by cyber security specialists with extensive experience in enterprise, industrial and telecommunications sectors.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Geniusnet SAgeniusnet.gr HQ: Athens, GreeceReported employees: 11-50 | Athens, Greece | 11-50 | Exact match | 12 contacts → |
“GeniusNet SA is a High tech Cybersecurity and Smart security Company specialized on Supporting your business!” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Cyberflipcyberflip.eu HQ: Athens, GreeceReported employees: 1-10 | Athens, Greece | 1-10 | Exact match | 11 contacts → |
“We are here to jointly understand and address in practice how Cybersecurity can be a business enabler- Providing Cybersecurity services, industry-specific, vendor neutral and…” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Accessit LTDaccessit.gr HQ: Athens, GreeceReported employees: 11-50 | Athens, Greece | 11-50 | Exact match | 9 contacts → |
“Accessit is a dynamically developing company that provides integrated solutions in the field of Internet.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Memorandummemorandum.gr HQ: GreeceReported employees: 11-50 | Greece | 11-50 | Exact match | 7 contacts → |
“A cyber security company that offers bespoke, impact-centric services through envisioning, designing, crafting and providing critical Cyber Security Solutions and advanced A.I.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | TÜV Austria Trust IT GRgr.trustit.tuvaustria.com HQ: Athens, GreeceReported employees: 11-50 | Athens, Greece | 11-50 | Exact match | 7 contacts → |
“Established in 2024, TÜV AUSTRIA Trust IT stands as a subsidiary of TÜV AUSTRIA, specializing in comprehensive information security and IT-related services.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Cysoft LTDcysoft.gr HQ: Athens, GreeceReported employees: 1-10 | Athens, Greece | 1-10 | Exact match | 7 contacts → |
“Η Cysoft Σύμβουλοι Πληροφορικής ΕΠΕ ιδρύθηκε το 1998 για να διαθέσει στην Ελληνική Αγορά επιλεγμένα προϊόντα και λύσεις ασφάλειας πληροφορικής.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Innosecinnosec.gr HQ: GreeceReported employees: 1-10 | Greece | 1-10 | Exact match | 7 contacts → |
“InnoSec is a spin-off company, involved in state-of-the-art research in the field of information security.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Logiseklogisek.com HQ: Koropi, GreeceReported employees: 11-50 | Koropi, Greece | 11-50 | Exact match | 6 contacts → |
“Logisek is a leading Cyber Security and IT services firm, founded in Greece in 2008 and expanded to Romania in 2019.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | PES Cybersecuritypes-cybersecurity.gr HQ: GreeceReported employees: 1-10 | Greece | 1-10 | Exact match | 6 contacts → |
“PeS Cybersecurity, your trusted partner in safeguarding your digital domain, born from the dynamic collaboration between two industry leaders, Pylones Hellas, and eSafe, brings…” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Headnetheadnet.net HQ: Athens, GreeceReported employees: 1-10 | Athens, Greece | 1-10 | Exact match | 6 contacts → |
“At HEADNET, we deliver advanced networking and cybersecurity solutions designed to meet your unique business needs.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | I-Metrixmetrixnet.com HQ: Athens, GreeceReported employees: 11-50 | Athens, Greece | 11-50 | Exact match | 5 contacts → |
“Started in is now one of the leading companies in managed security services.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Cyberone S.Acyberone.gr HQ: Athens, GreeceReported employees: 1-10 | Athens, Greece | 1-10 | Exact match | 4 contacts → |
“At CyberOne we select and integrate the most advanced IT security solutions to address the evolving needs of corporate customers who must protect their information repositories…” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Vital Digital Forensicsv4ensics.gr HQ: Athens, GreeceReported employees: 1-10 | Athens, Greece | 1-10 | Exact match | 4 contacts → |
“Privately held company providing cyber-security services, specializing in Digital Forensics / Incident Response (DFIR), malware analysis.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Raven Cybersecurityravensec.eu HQ: Heraklion, GreeceReported employees: 1-10 | Heraklion, Greece | 1-10 | Exact match | 3 contacts → |
“Raven Cyber Security is a startup specializing in cybersecurity services, including penetration testing, production of cyber security learning courses, and software development.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Fractisfractis.eu HQ: Athens, GreeceReported employees: 1-10 | Athens, Greece | 1-10 | Exact match | 2 contacts → |
“We are a cyber security firm based in Greece operating in the EMEA region.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Cyberx Csiscyberx.gr HQ: GreeceReported employees: 1-10 | Greece | 1-10 | Exact match | 2 contacts → |
“Η CyberX, ιδρύθηκε με στόχο να προσφέρει καινοτόμες υπηρεσίες Ασφάλειας Πληροφοριακών Συστημάτων (Information Security Services & Cyber Security Services), χτίζοντας μία ασπίδα…” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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IT security companies: 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
64 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 ↗
IT security companies by metro
Questions about this company list
What does Exact match mean for IT security companies?
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 companies did RevenueBase find based in Greece?
The saved snapshot records 64 matching company records, 1,362 tracked contacts and 658 verified emails. The public preview displays 23 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 23 IT security companies based in Greece. Snapshot: September 4, 2026. https://revenuebase.ai/companies/it-security-companies/greece.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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