Company lists · Data refreshed September 2026

Top 23 Security strategy consultants based in Greece

RevenueBase identified 58 security strategy consultants headquartered in Greece as of September 2026 and tracks 722 professional contacts across them, including 270 with verified work emails and 22 with mobile numbers. Athens is the largest hub.

This list covers security strategy consultants 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 6, 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 6, 2026 86% judged on-target in blind review
58Companies
722Contacts tracked
270Verified emails
22Mobile numbers
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The 23 largest security strategy consultants based in Greece

Ranked by team size
Top 23 of 58 security strategy consultants based in Greece, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to security strategy consultants: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceAthens, GreeceHQ checked Sep 6, 202651-200194 contacts →

“CENSUS is a cybersecurity engineering powerhouse.”

Source: company website · checked Sep 6, 2026
2Partial evidenceAthens, GreeceHQ checked Sep 6, 202651-200159 contacts →

“ADACOM, a Byte subsidiary, enables security online for Financial Institutions, Telecom Operators, Governments and Large Organizations, in more than 30 countries in EMEA.”

Source: company website · checked Sep 6, 2026
3Indirect evidenceMetamorfosi, GreeceHQ checked Sep 6, 202611-5025 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.”

Source: company website · checked Sep 6, 2026
4Partial evidenceAthens, GreeceHQ checked Sep 6, 202611-5019 contacts →

“BRAINS Innovative Consulting Services is active in the provision of specialized Consulting and Development Services, with particular expertise in the broader Health & Security…”

Source: company website · checked Sep 6, 2026
5Indirect evidenceAthens, GreeceHQ checked Sep 6, 202611-5019 contacts →

“At Define Solutions, we put your business needs and goals first, in order to deliver tailored solutions that drive growth and streamline operations.”

Source: company website · checked Sep 6, 2026
6Indirect evidenceAthens, GreeceHQ checked Sep 6, 202611-5017 contacts →

“100+ years of combined experience.”

Source: company website · checked Sep 6, 2026
7Partial evidenceMetamorfosi, GreeceHQ checked Sep 6, 202651-20017 contacts →

“Founded in 1988, INTERSTAR Security is offering a broad array of customized, high quality, integrated consulting and security services.”

Source: company website · checked Sep 6, 2026
8Partial evidenceAgios Dimitrios, GreeceHQ checked Sep 6, 202611-5012 contacts →

“CyberNoesis was established in 2015 by cyber security specialists with extensive experience in enterprise, industrial and telecommunications sectors.”

Source: company website · checked Sep 6, 2026
9Partial evidencePiraeus, GreeceHQ checked Sep 6, 202611-5011 contacts →

“Vexillum Security was established to provide consulting services in the field of security in companies, organizations and individuals.”

Source: company website · checked Sep 6, 2026
10Indirect evidenceAgios Stefanos, GreeceHQ checked Sep 6, 20261-1010 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 &…”

Source: company website · checked Sep 6, 2026
11Partial evidenceAthens, GreeceHQ checked Sep 6, 202651-2007 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…”

Source: company website · checked Sep 6, 2026
12Partial evidenceAthens, GreeceHQ checked Sep 6, 202611-507 contacts →

“Established in 2024, TÜV AUSTRIA Trust IT stands as a subsidiary of TÜV AUSTRIA, specializing in comprehensive information security and IT-related services.”

Source: company website · checked Sep 6, 2026
13Partial evidenceCholargos - Athens, GreeceHQ checked Sep 6, 202611-507 contacts →

“Trust-IT (Trust Information Technologies) is an Enterprise Security Provider & IT Solutions Company, which leverages the sector of IT Security Intelligence in conjunction with…”

Source: company website · checked Sep 6, 2026
14Indirect evidenceNea Smyrni, GreeceHQ checked Sep 6, 20261-107 contacts →

“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 6, 2026
15Partial evidenceKoropi, GreeceHQ checked Sep 6, 202611-506 contacts →

“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 6, 2026
16Partial evidenceAthens, GreeceHQ checked Sep 6, 202611-505 contacts →

“Started in is now one of the leading companies in managed security services.”

Source: company website · checked Sep 6, 2026
17Partial evidenceChalandri, GreeceHQ checked Sep 6, 20261-104 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…”

Source: company website · checked Sep 6, 2026
18Indirect evidenceChalandri, GreeceHQ checked Sep 6, 202611-504 contacts →
Source: company website · checked Sep 6, 2026
19Indirect evidencePireas, GreeceHQ checked Sep 6, 20261-104 contacts →

“f society was founded in 2017 in Greece during the economic crisis, breaking the brain drain rule.”

Source: company website · checked Sep 6, 2026
20Partial evidenceAthens, GreeceHQ checked Sep 6, 20261-102 contacts →

“We are a cyber security firm based in Greece operating in the EMEA region.”

Source: company website · checked Sep 6, 2026
21Partial evidenceAmaroúsion, GreeceHQ checked Sep 6, 202611-502 contacts →

“Nisos Advisors was established in 2017 by a team of partners with extensive field experience each with over twenty years of line management and consultancy practice.”

Source: company website · checked Sep 6, 2026
22Partial evidenceKifisia, GreeceHQ checked Sep 6, 20261-102 contacts →

Security Consulting”

Source: company website · checked Sep 6, 2026
23Strong evidenceThessaloniki, GreeceHQ checked Sep 6, 20261-101 contacts →

“At ST Consultant our mission is to empower our clients with the knowledge, strategies, and technologies needed to protect their assets, people, and information.”

Source: company website · checked Sep 6, 2026

Showing 23 of 58 security strategy consultants based in Greece

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Security strategy consultants based in Greece at a glance

As of Sep 6, 2026
37.4%Verified-email coverage
3.0%Mobile-number coverage
12.4Average contacts per company
1-10Median size (employees)
36.2%Largest-city concentration · Athens
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
35
11-50
16
51-200
6
501-1,000
1

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 security strategy consultants, 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 “security strategy consultants”. 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 security strategy consultants), 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 security strategy consultants, 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, 270 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 6, 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

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 security strategy consultants, 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 security strategy consultants are there based in Greece?

RevenueBase identified 58 security strategy consultants 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?

Census, headquartered in Greece, tops this list with the largest team on record.

Which city has the most security strategy consultants?

Athens leads with 21 headquartered companies, followed by Peristeri (2) and Piraeus (2).

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 270 verified decision-maker contacts tracked across these 58 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 6, 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.