Company lists · Data refreshed September 2026

Top 21 Cybersecurity marketing agencies based in Greece

Name: Cybersecurity marketing agencies based in Greece
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 3, 2026 44 companies tracked

RevenueBase identified 44 cybersecurity marketing agencies headquartered in Greece as of September 2026 and tracks 1,008 professional contacts across them, including 515 with verified work emails and 20 with mobile numbers. Athens is the largest hub.

This list covers cybersecurity marketing agencies 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, how directly it supports the match, and when it was last checked. Data refreshed September 3, 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.

How to read this list Match evidence on every row Refreshed Sep 3, 2026 86% judged on-target in blind review

44Companies

1,008Contacts tracked

515Verified emails

20Mobile numbers

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The 21 largest cybersecurity marketing agencies based in Greece

Ranked by team size

Top 21 of 44 cybersecurity marketing agencies based in Greece, ranked by team size, largest first. Data refreshed Sep 3, 2026. Evidence rates how directly each company's own description names cybersecurity marketing agencies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Nviso SecurityIndirect evidence	Athens, Greece	201-500	311
	“NVISO is a cyber security services firm composed of outstanding security professionals - each has a specific field of expertise, ranging from security research and risk management…” Source: company website · checked Sep 3, 2026
2	ObrelaIndirect evidence	Athens, Greece	201-500	242
	“Obrela Security Industries is a global provider of cyber security services.” Source: company website · checked Sep 3, 2026
3	CensusPartial evidence	Thermi Thessaloniki, Greece	51-200	184
	“CENSUS is a cybersecurity engineering powerhouse.” Source: company website · checked Sep 3, 2026
4	CyberowlIndirect evidence	Athens, Greece	51-200	56
	“CyberOwl helps asset operators in the maritime and critical national infrastructure sectors gain visibility, cyber security and cyber compliance of systems on their distributed…” Source: company website · checked Sep 3, 2026
5	K3yPartial evidence	Greece	11-50	25
	“K3Y has two major pillars, Cybersecurity Services & Research and Development.” Source: company website · checked Sep 3, 2026
6	ThreatscenePartial evidence	Athens, Greece	11-50	20
	“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: company website · checked Sep 3, 2026
7	EnzymePartial evidence	Greece	11-50	18
	“Enzyme is a specialist in marketing and communication services, developing strategies for acquiring new customers and building, extending, and cultivating customer relationships.” Source: company website · checked Sep 3, 2026
8	Alphabit CybersecurityPartial evidence	Greece	11-50	17
	“Alphabit is an expert Cybersecurity services provider.” Source: company website · checked Sep 3, 2026
9	Cenobe CybersecurityPartial evidence	Greece	11-50	15
	“Reduce cybersecurity risk proactively by identifying security gaps and vulnerabilities before they can be exploited by malicious actors.” Source: company website · checked Sep 3, 2026
10	Cyber NoesisIndirect evidence	Greece	11-50	12
	“CyberNoesis was established in 2015 by cyber security specialists with extensive experience in enterprise, industrial and telecommunications sectors.” Source: company website · checked Sep 3, 2026
11	CyberflipPartial evidence	Athens, Greece	1-10	11
	“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…” Source: company website · checked Sep 3, 2026
12	MemorandumIndirect evidence	Greece	11-50	7
	“A cyber security company that offers bespoke, impact-centric services through envisioning, designing, crafting and providing critical Cyber Security Solutions and advanced A.I.” Source: company website · checked Sep 3, 2026
13	Netbull IT Services LTDIndirect evidence	Athens, Greece	51-200	7
	“Netbull is merged with absorption and now is part of ADACOM SA, delivering Cyber Security Solutions and cutting-edge Services, empowering organizations to better protect against…” Source: company website · checked Sep 3, 2026
14	Cygnus TechnologiesPartial evidence	Athens, Greece	11-50	7
	“Cygnus Technologies is a leading Greece-based provider of managed IT Cybersecurity services for the shipping industry.” Source: company website · checked Sep 3, 2026
15	Cysoft LTDIndirect evidence	Athens, Greece	1-10	7
	“Η Cysoft Σύμβουλοι Πληροφορικής ΕΠΕ ιδρύθηκε το 1998 για να διαθέσει στην Ελληνική Αγορά επιλεγμένα προϊόντα και λύσεις ασφάλειας πληροφορικής.” Source: company website · checked Sep 3, 2026
16	LogisekIndirect evidence	Greece	11-50	6
	“Logisek is a leading Cyber Security and IT services firm, founded in Greece in 2008 and expanded to Romania in 2019.” Source: company website · checked Sep 3, 2026
17	PES CybersecurityPartial evidence	Greece	1-10	6
	“PeS Cybersecurity, your trusted partner in safeguarding your digital domain, born from the dynamic collaboration between two industry leaders, Pylones Hellas, and eSafe, brings…” Source: company website · checked Sep 3, 2026
18	K2 InformaticsPartial evidence	Greece	1-10	4
	“Maritime Cybersecurity” Source: company website · checked Sep 3, 2026
19	Vital Digital ForensicsIndirect evidence	Athens, Greece	1-10	4
	“Privately held company providing cyber-security services, specializing in Digital Forensics / Incident Response (DFIR), malware analysis.” Source: company website · checked Sep 3, 2026
20	Raven CybersecurityPartial evidence	Heraklion, Greece	1-10	3
	“Raven Cyber Security is a startup specializing in cybersecurity services, including penetration testing, production of cyber security learning courses, and software development.” Source: company website · checked Sep 3, 2026
21	Cyberx CsisIndirect evidence	Greece	1-10	2
	“Η CyberX, ιδρύθηκε με στόχο να προσφέρει καινοτόμες υπηρεσίες Ασφάλειας Πληροφοριακών Συστημάτων (Information Security Services & Cyber Security Services), χτίζοντας μία ασπίδα…” Source: company website · checked Sep 3, 2026

Showing 21 of 44 cybersecurity marketing agencies based in Greece

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Cybersecurity marketing agencies based in Greece at a glance

As of Sep 3, 2026

1-10Median size (employees)

AthensLargest hub · 18 HQs

20Contacts with mobile numbers

Sep 3, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 marketing agencies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 marketing agencies”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among cybersecurity marketing agencies, 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 an evidence 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, 515 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 3, 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.

Frequently asked

How many cybersecurity marketing agencies are there based in Greece?

RevenueBase identified 44 cybersecurity marketing agencies 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?

Nviso Security, headquartered in Athens, tops this list with the largest team on record.

Which city has the most cybersecurity marketing agencies?

Athens leads with 18 headquartered companies, followed by Thessaloniki (3) and Piraeus (1).

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 515 verified decision-maker contacts tracked across these 44 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 3, 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 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.