Company lists · Data refreshed September 2026

Top 25 Cybersecurity services and solutions based in Greece

Name: Cybersecurity services and solutions based in Greece
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 24, 2026 167 companies tracked

RevenueBase identified 167 cybersecurity services and solutions headquartered in Greece as of September 2026 and tracks 2,689 professional contacts across them, including 1,143 with verified work emails and 55 with mobile numbers. Athens is the largest hub.

This list covers cybersecurity services and solutions headquartered in Greece, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 24, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 24, 2026 86% judged on-target in blind review

167Companies

2,689Contacts tracked

1,143Verified emails

55Mobile numbers

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The 25 largest cybersecurity services and solutions based in Greece

Ranked by team size

Top 25 of 167 cybersecurity services and solutions based in Greece, ranked by team size, largest first. Data refreshed Sep 24, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity services and solutions: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Space Hellas S.A	Partial evidence	Ag. Paraskevi, GreeceHQ checked Sep 24, 2026	501-1,000	442 contacts →
	Partial evidence “Founded in 1985, Space Hellas is a leading system integrator that offers a comprehensive range of integrated ICT and security solutions and services complemented by after-sales…” Source: RevenueBase Database · checked Sep 24, 2026
2	Neurosoft	Indirect evidence	Irakleio, GreeceHQ checked Sep 24, 2026	201-500	270 contacts →
	Indirect evidence “Neurosoft is a leading Managed Services Provider (MSP) that specializes in offering end-to-end premium integrated services in the areas of Cyber Security, Technology and Field…” Source: RevenueBase Database · checked Sep 24, 2026
3	Performance Technologies S.A	Indirect evidence	Athens, GreeceHQ checked Sep 24, 2026	201-500	227 contacts →
	Indirect evidence “Performance Technologies is a trusted partner for organizations redefining themselves through digital transformation.” Source: RevenueBase Database · checked Sep 24, 2026
4	Census	Partial evidence	Athens, GreeceHQ checked Sep 24, 2026	51-200	194 contacts →
	Partial evidence “CENSUS is a cybersecurity engineering powerhouse.” Source: RevenueBase Database · checked Sep 24, 2026
5	Adacom	Indirect evidence	Athens, GreeceHQ checked Sep 24, 2026	51-200	159 contacts →
	Indirect evidence “ADACOM, a Byte subsidiary, enables security online for Financial Institutions, Telecom Operators, Governments and Large Organizations, in more than 30 countries in EMEA.” Source: RevenueBase Database · checked Sep 24, 2026
6	Algosystems S.A	Indirect evidence	Athens, GreeceHQ checked Sep 24, 2026	51-200	109 contacts →
	Indirect evidence “Algosystems is a reliable and dynamic Systems Integrator / Service Provider, active in ICT & Cyber Security, Automation and Metrology.” Source: RevenueBase Database · checked Sep 24, 2026
7	Bewise	Indirect evidence	Chalandri, GreeceHQ checked Sep 24, 2026	51-200	92 contacts →
	Indirect evidence “BEWISE is an established team of dedicated IT professionals combining years of technical and business experience.” Source: RevenueBase Database · checked Sep 24, 2026
8	Infinitum S.A	Indirect evidence	Lykovrysi, GreeceHQ checked Sep 24, 2026	51-200	90 contacts →
	Indirect evidence “Established in 1991, Infinitum, a healthy and growing organization, boasts more than 30 years of expertise in the area of IT services and strong, rewarding relationships with…” Source: RevenueBase Database · checked Sep 24, 2026
9	Adaptit S.A	Partial evidence	Agios Stefanos, GreeceHQ checked Sep 24, 2026	51-200	86 contacts →
	Partial evidence “ADAPTIT SA thrives on developing cutting-edge solutions that push the boundaries of what's possible in many industries (Telecommunications, Financial, Transportation, Utilities…” Source: RevenueBase Database · checked Sep 24, 2026
10	Office Line SA	Partial evidence	Ag. Dimitrios, GreeceHQ checked Sep 24, 2026	51-200	69 contacts →
	Partial evidence “Office Line S.A is an internationally recognized leading Cloud Solutions Provider and Digital Transformation company, empowering customers’ specific business requirements, while…” Source: RevenueBase Database · checked Sep 24, 2026
11	Smartns Technological S.A	Indirect evidence	Athens, GreeceHQ checked Sep 24, 2026	51-200	43 contacts →
	Indirect evidence “SmartNS Technological S.A, founded in 2004 and headquartered in Athens, Greece, is a trusted leader in IT infrastructure design and implementation, security, and automation…” Source: RevenueBase Database · checked Sep 24, 2026
12	Blend Technologies	Indirect evidence	Athens, GreeceHQ checked Sep 24, 2026	51-200	34 contacts →
	Indirect evidence “Complexity shouldn’t be a barrier to growth.” Source: RevenueBase Database · checked Sep 24, 2026
13	Noris Mike	Partial evidence	Thessaloniki, GreeceHQ checked Sep 24, 2026	11-50	31 contacts →
	Partial evidence “noris offers companies customized IT solutions in the areas of IT outsourcing, Cloud Services and Network & Security.” Source: RevenueBase Database · checked Sep 24, 2026
14	IQ Solutions SA	Strong evidence	Athens, GreeceHQ checked Sep 24, 2026	11-50	30 contacts →
	Strong evidence “Corporate ICT Solutions & Maritime ICT Solutions Certified for Cybersecurity by IACS members and Flag States.” Source: RevenueBase Database · checked Sep 24, 2026
15	Systecom S.A	Indirect evidence	Metamorfosi, GreeceHQ checked Sep 24, 2026	11-50	25 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 24, 2026
16	Microbase Greece	Partial evidence	Athens, GreeceHQ checked Sep 24, 2026	11-50	24 contacts →
	Partial evidence “Microbase is a Greek company that provides Integrated Communication Solutions, with dedication to the evolution of Technology.” Source: RevenueBase Database · checked Sep 24, 2026
17	Twelvesec	Indirect evidence	Chalandri, GreeceHQ checked Sep 24, 2026	11-50	20 contacts →
	Indirect evidence “With constant integration of technology in every aspect of an organisation, information security is something that everyone needs.” Source: RevenueBase Database · checked Sep 24, 2026
18	Threatscene	Partial evidence	Athens, GreeceHQ checked Sep 24, 2026	11-50	20 contacts →
	Partial evidence “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.” Source: RevenueBase Database · checked Sep 24, 2026
19	DTI Solutions	Indirect evidence	Athens, GreeceHQ checked Sep 24, 2026	11-50	17 contacts →
	Indirect evidence “100+ years of combined experience.” Source: RevenueBase Database · checked Sep 24, 2026
20	Alphabit Cybersecurity	Partial evidence	Khalándrion, GreeceHQ checked Sep 24, 2026	11-50	17 contacts →
	Partial evidence “Alphabit is an expert Cybersecurity services provider.” Source: RevenueBase Database · checked Sep 24, 2026
21	Accutech S.A	Partial evidence	Agios Dimitrios, GreeceHQ checked Sep 24, 2026	11-50	16 contacts →
	Partial evidence “Accutech is a state-of-the-art, customer-centric IT, digital transformation and advanced solutions company based in Athens, Greece, operating in Europe and Greece and…” Source: RevenueBase Database · checked Sep 24, 2026
22	Eset Greece, Cyprus & Malta	Partial evidence	Athens, GreeceHQ checked Sep 24, 2026	11-50	16 contacts →
	Partial evidence “Since its beginning, ESET cybersecurity software has empowered people to use IT to improve their lives and grow their businesses.” Source: RevenueBase Database · checked Sep 24, 2026
23	Cenobe Cybersecurity	Partial evidence	Athens, GreeceHQ checked Sep 24, 2026	11-50	15 contacts →
	Partial evidence “Reduce cybersecurity risk proactively by identifying security gaps and vulnerabilities before they can be exploited by malicious actors.” Source: RevenueBase Database · checked Sep 24, 2026
24	Besecure	Partial evidence	Athens, GreeceHQ checked Sep 24, 2026	11-50	15 contacts →
	Partial evidence “We are a leading provider of Governance, Risk & Compliance (GRC) services, Cyber Security solutions, Managed Security services, Certification Training and Awareness programs…” Source: RevenueBase Database · checked Sep 24, 2026
25	Alphaomegazed SA	Partial evidence	Athens, GreeceHQ checked Sep 24, 2026	1-10	15 contacts →
	Partial evidence “Alpha Omega Zed is a company with a portfolio of solutions including digital transformation and information systems development, e-learning and e-training and cyber security…” Source: RevenueBase Database · checked Sep 24, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: cybersecurity services and solutions. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names cybersecurity services and solutions.
Partial evidence: Its own public description names part of cybersecurity services and solutions, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cybersecurity services and solutions. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 167 cybersecurity services and solutions based in Greece

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Cybersecurity services and solutions based in Greece at a glance

As of Sep 24, 2026

42.5%Verified-email coverage

2.0%Mobile-number coverage

16.1Average contacts per company

1-10Median size (employees)

39.5%Largest-city concentration · Athens

Sep 24, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 26.0d

8700–30

25931–60

1161–90

090–180

3180+

Company record updated

Median 69.0d

00–30

90031–60

1,04361–90

59890–180

148180+

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among cybersecurity services and solutions, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Greece whose own description of what they do matches “cybersecurity services and solutions”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names cybersecurity services and solutions), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among cybersecurity services and solutions, and records with no verified work email. Companies headquartered outside Greece are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 1,143 across the full list. 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 24, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Cybersecurity services and solutions by metro

Cybersecurity services and solutions in Athens66

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names cybersecurity services and solutions, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many cybersecurity services and solutions are there based in Greece?

RevenueBase identified 167 cybersecurity services and solutions headquartered in Greece as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Space Hellas S.A, headquartered in Greece, tops this list with the largest team on record.

Which city has the most cybersecurity services and solutions?

Athens leads with 66 headquartered companies, followed by Thessaloniki (7) and Attica (5).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 1,143 verified decision-maker contacts tracked across these 167 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 24, 2026.

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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 Smart Search, 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.