Company lists · Data refreshed September 2026
Top 25 Security consultancies based in Greece
RevenueBase identified 141 company matches for security consultancies associated with Greece as of September 2026 and tracks 1,289 professional contacts across them, including 392 with verified work emails. Athens is the largest hub.
This list covers company matches for security consultancies 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 21, 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 25 largest security consultancies based in Greece
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 194 contacts → | ||||
Exact match “CENSUS is a cybersecurity engineering powerhouse.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 2 | 185 contacts → | ||||
Exact match “ESA Security Solutions is a leading security company in Greece.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 3 | 159 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 21, 2026 · View company records in RevenueBase | |||||
| 4 | 35 contacts → | ||||
Exact match “The Company United Security is focused providing high security services tailored to the ever growing needs.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 5 | 30 contacts → | ||||
Exact match “A well-rounded team of specialists ready to undertake any security project regardless of size, complexity or location.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 6 | 27 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 7 | 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 21, 2026 · View company records in RevenueBase | |||||
| 8 | 22 contacts → | ||||
Exact match “Mega Sprint Guard is a leading provider of integrated security services in Greece.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 9 | 20 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 21, 2026 · View company records in RevenueBase | |||||
| 10 | 19 contacts → | ||||
Exact match “BRAINS Innovative Consulting Services is active in the provision of specialized Consulting and Development Services, with particular expertise in the broader Health & Security…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 11 | 18 contacts → | ||||
Exact match “KEEPER GROUP is a leading security systems distribution company.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 12 | 18 contacts → | ||||
Exact match “The company exists in the field of Systems and Security Services since 2003 with significant experience.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 13 | 17 contacts → | ||||
Exact match “100+ years of combined experience.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 14 | 17 contacts → | ||||
Exact match “Founded in 1988, INTERSTAR Security is offering a broad array of customized, high quality, integrated consulting and security services.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 15 | 17 contacts → | ||||
Exact match “Alphabit is an expert Cybersecurity services provider.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 16 | 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 21, 2026 · View company records in RevenueBase | |||||
| 17 | 11 contacts → | ||||
Exact match “Vexillum Security was established to provide consulting services in the field of security in companies, organizations and individuals.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 18 | 10 contacts → | ||||
Exact match “H GDPR Greece ιδρύθηκε από δύο ανθρώπους που έχουν ταυτιστεί στην Ελλάδα με την ασφάλεια πληροφοριακών συστημάτων και το ηλεκτρονικό έγκλημα.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 19 | 10 contacts → | ||||
Exact match “Sigma Business Network provides its customers with high-level, fully customized Consulting Services and Integrated Programs to assist them in the critical areas of- Risk &…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 20 | 9 contacts → | ||||
Exact match “We at NAUTILUS MSS pride ourselves on providing world class Maritime Security Services.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 21 | 8 contacts → | ||||
Exact match “Η εταιρεία Topsec Security Products προσφέρει λύσεις και προϊόντα συστημάτων ασφαλείας για το σπίτι, τις ιδιωτικές και δημόσιες επιχειρήσεις, οργανισμούς κάθε μεγέθους, τη…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 22 | 7 contacts → | ||||
Exact match “ICT PROTECT is an information security firm, specialising in Security Management and Security Training services.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 23 | 7 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 24 | 7 contacts → | ||||
Exact match “Our mission statement illustrates our company culture: Ovit personnel provide Superior Security Services tailored specifically to the requirements of each individual or client's…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 25 | 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 21, 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 “security consultancies”. 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 25 of 141 security consultancies based in Greece
See the full list, filter by size, metro and specialty, and access 392 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Security consultancies based in Greece at a glance
As of Sep 21, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for Greece, so it is reported there. Company counts and contact totals on this page are exact for Greece, over 141 companies.
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 “security consultancies” 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 392 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 21, 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.
Security consultancies 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 “security consultancies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many security consultancies are there based in Greece?
RevenueBase identified 141 company matches for security consultancies 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 security consultancies?
Athens leads with 37 company records, followed by Piraeus (3) 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 392 professional contacts with verified work emails tracked across these 141 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 21, 2026.
Ready to reach these companies? Verified emails and direct dials for all 141 security consultancies based in Greece. Start with a free account, no credit card.
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Security consultancies by geography
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- Security consultancies based in Perth, Australia
- Security consultancies based in Sydney, Australia
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- Security consultancies based in Belo Horizonte, Brazil
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- Security consultancies based in Curitiba, Brazil
Browse the directory
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
- All company lists
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- New lists
- Security consultancies based in Buenos Aires, Argentina
- Security consultancies based in Adelaide, Australia
- Security consultancies based in Brisbane, Australia
- Security consultancies based in Canberra, Australia
- Security consultancies based in Melbourne, Australia
- Security consultancies based in Perth, Australia
Company intelligence · public preview
Top 25 security consultancies 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 141 matching company records for security consultancies based in Greece, with 1,289 tracked contacts and 392 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 21, 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 25 security consultancies 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 | 194 contacts → |
“CENSUS is a cybersecurity engineering powerhouse.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  ESA Security Solutions S.Aesasecurity.grHQ: Chalandri, GreeceReported employees: 1,001-5,000 | Chalandri, Greece | 1,001-5,000 | Exact match | 185 contacts → |
“ESA Security Solutions is a leading security company in Greece.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Adacomadacom.comHQ: Athens, GreeceReported employees: 51-200 | Athens, Greece | 51-200 | Exact match | 159 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 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  United Securityunitedsecurity.grHQ: Piraeus, GreeceReported employees: 201-500 | Piraeus, Greece | 201-500 | Exact match | 35 contacts → |
“The Company United Security is focused providing high security services tailored to the ever growing needs.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Cubitech Systemscubitechsystems.comHQ: Tavros, GreeceReported employees: 11-50 | Tavros, Greece | 11-50 | Exact match | 30 contacts → |
“A well-rounded team of specialists ready to undertake any security project regardless of size, complexity or location.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Your Confidence S.Ayc.grHQ: Athens - Kifisia, GreeceReported employees: 51-200 | Athens - Kifisia, Greece | 51-200 | Exact match | 27 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 7 |  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 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Mega Sprint Guardmegaguard.grHQ: Athens, GreeceReported employees: 201-500 | Athens, Greece | 201-500 | Exact match | 22 contacts → |
“Mega Sprint Guard is a leading provider of integrated security services in Greece.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Twelvesectwelvesec.comHQ: Chalandri, GreeceReported employees: 11-50 | Chalandri, Greece | 11-50 | Exact match | 20 contacts → |
“With constant integration of technology in every aspect of an organisation, information security is something that everyone needs.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Brains ICSbrains-ics.comHQ: Athens, GreeceReported employees: 11-50 | Athens, Greece | 11-50 | Exact match | 19 contacts → |
“BRAINS Innovative Consulting Services is active in the provision of specialized Consulting and Development Services, with particular expertise in the broader Health & Security…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Keeper Groupkeeper.grHQ: Athens, GreeceReported employees: 11-50 | Athens, Greece | 11-50 | Exact match | 18 contacts → |
“KEEPER GROUP is a leading security systems distribution company.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Union Securityunion-security.comHQ: Agios Stefanos, GreeceReported employees: 11-50 | Agios Stefanos, Greece | 11-50 | Exact match | 18 contacts → |
“The company exists in the field of Systems and Security Services since 2003 with significant experience.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  DTI Solutionsdti-solutions.comHQ: Athens, GreeceReported employees: 11-50 | Athens, Greece | 11-50 | Exact match | 17 contacts → |
“100+ years of combined experience.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Interstar Securityinterstar.grHQ: Metamorfosi, GreeceReported employees: 51-200 | Metamorfosi, Greece | 51-200 | Exact match | 17 contacts → |
“Founded in 1988, INTERSTAR Security is offering a broad array of customized, high quality, integrated consulting and security services.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Alphabit Cybersecurityalphabit.grHQ: Khalándrion, GreeceReported employees: 11-50 | Khalándrion, Greece | 11-50 | Exact match | 17 contacts → |
“Alphabit is an expert Cybersecurity services provider.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Cyber Noesiscybernoesis.comHQ: Agios Dimitrios, GreeceReported employees: 11-50 | Agios Dimitrios, 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 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Vexillum Security Servicesvexillumsecurity.grHQ: Piraeus, GreeceReported employees: 11-50 | Piraeus, Greece | 11-50 | Exact match | 11 contacts → |
“Vexillum Security was established to provide consulting services in the field of security in companies, organizations and individuals.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Gdpr Greecegdprgreece.comHQ: Αγία Παρασκευή, GreeceReported employees: 11-50 | Αγία Παρασκευή, Greece | 11-50 | Exact match | 10 contacts → |
“H GDPR Greece ιδρύθηκε από δύο ανθρώπους που έχουν ταυτιστεί στην Ελλάδα με την ασφάλεια πληροφοριακών συστημάτων και το ηλεκτρονικό έγκλημα.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Sigma Business Networkthesigmanet.comHQ: Agios Stefanos, GreeceReported employees: 1-10 | Agios Stefanos, Greece | 1-10 | Exact match | 10 contacts → |
“Sigma Business Network provides its customers with high-level, fully customized Consulting Services and Integrated Programs to assist them in the critical areas of- Risk &…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Nautilus MSS International Maritime Security Servicesnautilusmss.comHQ: Glyfada, GreeceReported employees: 11-50 | Glyfada, Greece | 11-50 | Exact match | 9 contacts → |
“We at NAUTILUS MSS pride ourselves on providing world class Maritime Security Services.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Topsec Security Productstopsec.grHQ: Αθηνα, GreeceReported employees: 1-10 | Αθηνα, Greece | 1-10 | Exact match | 8 contacts → |
“Η εταιρεία Topsec Security Products προσφέρει λύσεις και προϊόντα συστημάτων ασφαλείας για το σπίτι, τις ιδιωτικές και δημόσιες επιχειρήσεις, οργανισμούς κάθε μεγέθους, τη…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  ICT Protectictprotect.comHQ: Amaroúsion, GreeceReported employees: 1-10 | Amaroúsion, Greece | 1-10 | Exact match | 7 contacts → |
“ICT PROTECT is an information security firm, specialising in Security Management and Security Training services.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Europa Securityeuropa.grHQ: Marousi, GreeceReported employees: 51-200 | Marousi, Greece | 51-200 | Exact match | 7 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 24 |  Ovit P.Covitsec.comHQ: Athens, GreeceReported employees: 51-200 | Athens, Greece | 51-200 | Exact match | 7 contacts → |
“Our mission statement illustrates our company culture: Ovit personnel provide Superior Security Services tailored specifically to the requirements of each individual or client's…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  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 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 141 company matches
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Security consultancies: dataset insights
September 21, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
141 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.
Email recency for this list is measured worldwide rather than for Greece, so it is reported there. Company counts and contact totals on this page are exact for Greece, over 141 companies.
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.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
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 21, 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 ↗
Security consultancies by metro
Questions about this company list
What does Exact match mean for security consultancies?
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 security consultancies did RevenueBase find based in Greece?
The saved snapshot records 141 matching company records, 1,289 tracked contacts and 392 verified emails. The public preview displays 25 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 21, 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
Security consultancies by geography
- Security consultancies based in Buenos Aires, Argentina
- Security consultancies based in Adelaide, Australia
- Security consultancies based in Brisbane, Australia
- Security consultancies based in Canberra, Australia
- Security consultancies based in Melbourne, Australia
- Security consultancies based in Perth, Australia
- Security consultancies based in Sydney, Australia
- Security consultancies based in Vienna, Austria
- Security consultancies based in Barueri, Brazil
- Security consultancies based in Belo Horizonte, Brazil
- Security consultancies based in Brasilia, Brazil
- Security consultancies based in Curitiba, Brazil
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 security consultancies based in Greece. Snapshot: September 21, 2026. https://revenuebase.ai/companies/security-consultancies/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
- Security consultancies based in Buenos Aires, Argentina
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Company intelligence · public preview
Top 25 security consultancies based in Greece
RevenueBase records 141 matching company records for security consultancies based in Greece, with 1,289 tracked contacts and 392 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 21, 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 25 security consultancies 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 | 194 contacts → |
“CENSUS is a cybersecurity engineering powerhouse.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | ESA Security Solutions S.Aesasecurity.gr HQ: Chalandri, GreeceReported employees: 1,001-5,000 | Chalandri, Greece | 1,001-5,000 | Exact match | 185 contacts → |
“ESA Security Solutions is a leading security company in Greece.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Adacomadacom.com HQ: Athens, GreeceReported employees: 51-200 | Athens, Greece | 51-200 | Exact match | 159 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 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | United Securityunitedsecurity.gr HQ: Piraeus, GreeceReported employees: 201-500 | Piraeus, Greece | 201-500 | Exact match | 35 contacts → |
“The Company United Security is focused providing high security services tailored to the ever growing needs.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Cubitech Systemscubitechsystems.com HQ: Tavros, GreeceReported employees: 11-50 | Tavros, Greece | 11-50 | Exact match | 30 contacts → |
“A well-rounded team of specialists ready to undertake any security project regardless of size, complexity or location.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Your Confidence S.Ayc.gr HQ: Athens - Kifisia, GreeceReported employees: 51-200 | Athens - Kifisia, Greece | 51-200 | Exact match | 27 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 7 | 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 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Mega Sprint Guardmegaguard.gr HQ: Athens, GreeceReported employees: 201-500 | Athens, Greece | 201-500 | Exact match | 22 contacts → |
“Mega Sprint Guard is a leading provider of integrated security services in Greece.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Twelvesectwelvesec.com HQ: Chalandri, GreeceReported employees: 11-50 | Chalandri, Greece | 11-50 | Exact match | 20 contacts → |
“With constant integration of technology in every aspect of an organisation, information security is something that everyone needs.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Brains ICSbrains-ics.com HQ: Athens, GreeceReported employees: 11-50 | Athens, Greece | 11-50 | Exact match | 19 contacts → |
“BRAINS Innovative Consulting Services is active in the provision of specialized Consulting and Development Services, with particular expertise in the broader Health & Security…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Keeper Groupkeeper.gr HQ: Athens, GreeceReported employees: 11-50 | Athens, Greece | 11-50 | Exact match | 18 contacts → |
“KEEPER GROUP is a leading security systems distribution company.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Union Securityunion-security.com HQ: Agios Stefanos, GreeceReported employees: 11-50 | Agios Stefanos, Greece | 11-50 | Exact match | 18 contacts → |
“The company exists in the field of Systems and Security Services since 2003 with significant experience.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | DTI Solutionsdti-solutions.com HQ: Athens, GreeceReported employees: 11-50 | Athens, Greece | 11-50 | Exact match | 17 contacts → |
“100+ years of combined experience.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Interstar Securityinterstar.gr HQ: Metamorfosi, GreeceReported employees: 51-200 | Metamorfosi, Greece | 51-200 | Exact match | 17 contacts → |
“Founded in 1988, INTERSTAR Security is offering a broad array of customized, high quality, integrated consulting and security services.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Alphabit Cybersecurityalphabit.gr HQ: Khalándrion, GreeceReported employees: 11-50 | Khalándrion, Greece | 11-50 | Exact match | 17 contacts → |
“Alphabit is an expert Cybersecurity services provider.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Cyber Noesiscybernoesis.com HQ: Agios Dimitrios, GreeceReported employees: 11-50 | Agios Dimitrios, 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 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Vexillum Security Servicesvexillumsecurity.gr HQ: Piraeus, GreeceReported employees: 11-50 | Piraeus, Greece | 11-50 | Exact match | 11 contacts → |
“Vexillum Security was established to provide consulting services in the field of security in companies, organizations and individuals.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Gdpr Greecegdprgreece.com HQ: Αγία Παρασκευή, GreeceReported employees: 11-50 | Αγία Παρασκευή, Greece | 11-50 | Exact match | 10 contacts → |
“H GDPR Greece ιδρύθηκε από δύο ανθρώπους που έχουν ταυτιστεί στην Ελλάδα με την ασφάλεια πληροφοριακών συστημάτων και το ηλεκτρονικό έγκλημα.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Sigma Business Networkthesigmanet.com HQ: Agios Stefanos, GreeceReported employees: 1-10 | Agios Stefanos, Greece | 1-10 | Exact match | 10 contacts → |
“Sigma Business Network provides its customers with high-level, fully customized Consulting Services and Integrated Programs to assist them in the critical areas of- Risk &…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Nautilus MSS International Maritime Security Servicesnautilusmss.com HQ: Glyfada, GreeceReported employees: 11-50 | Glyfada, Greece | 11-50 | Exact match | 9 contacts → |
“We at NAUTILUS MSS pride ourselves on providing world class Maritime Security Services.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Topsec Security Productstopsec.gr HQ: Αθηνα, GreeceReported employees: 1-10 | Αθηνα, Greece | 1-10 | Exact match | 8 contacts → |
“Η εταιρεία Topsec Security Products προσφέρει λύσεις και προϊόντα συστημάτων ασφαλείας για το σπίτι, τις ιδιωτικές και δημόσιες επιχειρήσεις, οργανισμούς κάθε μεγέθους, τη…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | ICT Protectictprotect.com HQ: Amaroúsion, GreeceReported employees: 1-10 | Amaroúsion, Greece | 1-10 | Exact match | 7 contacts → |
“ICT PROTECT is an information security firm, specialising in Security Management and Security Training services.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Europa Securityeuropa.gr HQ: Marousi, GreeceReported employees: 51-200 | Marousi, Greece | 51-200 | Exact match | 7 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 24 | Ovit P.Covitsec.com HQ: Athens, GreeceReported employees: 51-200 | Athens, Greece | 51-200 | Exact match | 7 contacts → |
“Our mission statement illustrates our company culture: Ovit personnel provide Superior Security Services tailored specifically to the requirements of each individual or client's…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | 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 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Security consultancies: dataset insights
September 21, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
141 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.
Email recency for this list is measured worldwide rather than for Greece, so it is reported there. Company counts and contact totals on this page are exact for Greece, over 141 companies.
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.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
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 21, 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 ↗
Security consultancies by metro
Questions about this company list
What does Exact match mean for security consultancies?
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 security consultancies did RevenueBase find based in Greece?
The saved snapshot records 141 matching company records, 1,289 tracked contacts and 392 verified emails. The public preview displays 25 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 21, 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 25 security consultancies based in Greece. Snapshot: September 21, 2026. https://revenuebase.ai/companies/security-consultancies/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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