Company lists · Data refreshed September 2026

Top 25 Enterprise security system providers based in Greece

Name: Enterprise security system providers based in Greece
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 97 companies tracked

RevenueBase identified 97 enterprise security system providers headquartered in Greece as of September 2026 and tracks 1,607 professional contacts across them, including 534 with verified work emails. Athens is the largest hub.

This list covers enterprise security system providers 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 28, 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 28, 2026 86% judged on-target in blind review

97Companies

1,607Contacts tracked

534Verified emails

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The 25 largest enterprise security system providers based in Greece

Ranked by team size

Top 25 of 97 enterprise security system providers based in Greece, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to enterprise security system providers: 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	Strong evidence	Ag. Paraskevi, GreeceHQ checked Sep 28, 2026	501-1,000	442 contacts →
	Strong 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 28, 2026
2	ESA Security Solutions S.A	Partial evidence	Chalandri, GreeceHQ checked Sep 28, 2026	1,001-5,000	185 contacts →
	Partial evidence “ESA Security Solutions is a leading security company in Greece.” Source: RevenueBase Database · checked Sep 28, 2026
3	Adacom	Partial evidence	Athens, GreeceHQ checked Sep 28, 2026	51-200	159 contacts →
	Partial 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 28, 2026
4	Zarifopoulos S.A	Indirect evidence	Nea Ionia, GreeceHQ checked Sep 28, 2026	201-500	100 contacts →
	Indirect evidence “The Greek Company ZARIFOPOULOS S.A.” Source: RevenueBase Database · checked Sep 28, 2026
5	Olympia Electronics	Indirect evidence	Eginio, GreeceHQ checked Sep 28, 2026	201-500	95 contacts →
	Indirect evidence “Founded in 1979, Olympia Electronics S.A.” Source: RevenueBase Database · checked Sep 28, 2026
6	Ifsas Group	Strong evidence	Kifissia, GreeceHQ checked Sep 28, 2026	51-200	68 contacts →
	Strong evidence “IFSAS Group is a leading integrator of advanced Safety, Security & Homeland Security solutions, delivering end-to-end systems that protect people, assets, and critical operations.” Source: RevenueBase Database · checked Sep 28, 2026
7	Sigma Security	Strong evidence	Agios Dimitrios, GreeceHQ checked Sep 28, 2026	11-50	57 contacts →
	Strong evidence “Sigma Security was established in 1977 and today is one of the largest security systems companies in Greece specialized in the research, development and production of integral…” Source: RevenueBase Database · checked Sep 28, 2026
8	Cubitech Systems	Partial evidence	Tavros, GreeceHQ checked Sep 28, 2026	11-50	30 contacts →
	Partial evidence “A well-rounded team of specialists ready to undertake any security project regardless of size, complexity or location.” Source: RevenueBase Database · checked Sep 28, 2026
9	Scan Saic Information Systems	Partial evidence	Athens, GreeceHQ checked Sep 28, 2026	11-50	22 contacts →
	Partial evidence “SCAN Information Systems: Your business partner in Greece An established market leader in Greece, SCAN Information Systems, offers a multitude of tested and field proven solutions…” Source: RevenueBase Database · checked Sep 28, 2026
10	Keeper Group	Strong evidence	Athens, GreeceHQ checked Sep 28, 2026	11-50	18 contacts →
	Strong evidence “KEEPER GROUP is a leading security systems distribution company.” Source: RevenueBase Database · checked Sep 28, 2026
11	Union Security	Strong evidence	Agios Stefanos, GreeceHQ checked Sep 28, 2026	11-50	18 contacts →
	Strong evidence “The company exists in the field of Systems and Security Services since 2003 with significant experience.” Source: RevenueBase Database · checked Sep 28, 2026
12	Mega Sprint Guard	Strong evidence	Thessaloniki, GreeceHQ checked Sep 28, 2026	1,001-5,000	17 contacts →
	Strong evidence “We offer service as: Crisis Management Risk Assessment Guardin Services Manned Security Services Electronic Security Systems Incident Management Station Armored luxury cars…” Source: RevenueBase Database · checked Sep 28, 2026
13	Ilka S.A	Strong evidence	Agia Paraskevi, GreeceHQ checked Sep 28, 2026	11-50	16 contacts →
	Strong evidence “ILKA S.A is one of the leading security system companies in Greece.” Source: RevenueBase Database · checked Sep 28, 2026
14	Novatron Security Distribution SA	Strong evidence	Kifissia, GreeceHQ checked Sep 28, 2026	51-200	15 contacts →
	Strong evidence “Novatron Security Distribution SA is the largest distributor of Physical Security Systems in Greece and Cyprus, generating 15.5M euros (17.5M USD) in sales turnover in 2024.” Source: RevenueBase Database · checked Sep 28, 2026
15	Geniusnet SA	Partial evidence	Chalandri Athens, GreeceHQ checked Sep 28, 2026	11-50	12 contacts →
	Partial evidence “GeniusNet SA is a High tech Cybersecurity and Smart security Company specialized on Supporting your business!” Source: RevenueBase Database · checked Sep 28, 2026
16	AA Alarm	Indirect evidence	Iraklio, GreeceHQ checked Sep 28, 2026	1-10	10 contacts →
	Indirect evidence “AA ALARM LTD, located in Greece, delivers absolute reliability even in the most challenging conditions, carefully handpicked solutions, expert support, evolving vision and…” Source: RevenueBase Database · checked Sep 28, 2026
17	Topsec Security Products	Partial evidence	Αθηνα, GreeceHQ checked Sep 28, 2026	1-10	8 contacts →
	Partial evidence “Η εταιρεία Topsec Security Products προσφέρει λύσεις και προϊόντα συστημάτων ασφαλείας για το σπίτι, τις ιδιωτικές και δημόσιες επιχειρήσεις, οργανισμούς κάθε μεγέθους, τη…” Source: RevenueBase Database · checked Sep 28, 2026
18	Tecservices	Indirect evidence	Koropi Industrial, GreeceHQ checked Sep 28, 2026	11-50	7 contacts →
	Indirect evidence “Η TEC αποτελεί μία δυναμική και ταχέως αναπτυσσόμενη εταιρεία που εξειδικεύεται στη μελέτη, το σχεδιασμό, την παραμετροποίηση, την εγκατάσταση και την τεχνική υποστήριξη…” Source: RevenueBase Database · checked Sep 28, 2026
19	Ch.Theodossis S.A	Indirect evidence	Athens, GreeceHQ checked Sep 28, 2026	51-200	7 contacts →
	Indirect evidence “Ch.” Source: RevenueBase Database · checked Sep 28, 2026
20	Trust-It Security Intelligence	Strong evidence	Cholargos - Athens, GreeceHQ checked Sep 28, 2026	11-50	7 contacts →
	Strong evidence “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: RevenueBase Database · checked Sep 28, 2026
21	In2solution P.C	Partial evidence	Athens, GreeceHQ checked Sep 28, 2026	11-50	6 contacts →
	Partial evidence “Ιn2solution is an advanced security solutions company based in Athens.” Source: RevenueBase Database · checked Sep 28, 2026
22	Infopower PC	Strong evidence	Athens, GreeceHQ checked Sep 28, 2026	11-50	6 contacts →
	Strong evidence “InfoPower is an Information Technology company, delivering turnkey solutions in the areas of Physical Security Systems (Access Control, CCTV, Intrusion Detection, Fire Detection).” Source: RevenueBase Database · checked Sep 28, 2026
23	I-Metrix	Partial evidence	Athens, GreeceHQ checked Sep 28, 2026	11-50	5 contacts →
	Partial evidence “Started in is now one of the leading companies in managed security services.” Source: RevenueBase Database · checked Sep 28, 2026
24	G.I. Security S.A	Indirect evidence	Peania, GreeceHQ checked Sep 28, 2026	11-50	4 contacts →
	Indirect evidence “G.I.” Source: RevenueBase Database · checked Sep 28, 2026
25	NK Security S.A	Partial evidence	Artemis, GreeceHQ checked Sep 28, 2026	11-50	4 contacts →
	Partial evidence “NK SECURITY Α.Ε.” Source: RevenueBase Database · checked Sep 28, 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: enterprise security system providers. 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 enterprise security system providers.
Partial evidence: Its own public description names part of enterprise security system providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name enterprise security system providers. 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 97 enterprise security system providers based in Greece

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Enterprise security system providers based in Greece at a glance

As of Sep 28, 2026

33.2%Verified-email coverage

16.6Average contacts per company

11-50Median size (employees)

24.7%Largest-city concentration · Athens

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 97 companies.

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 enterprise security system providers, 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 “enterprise security system providers”. 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 enterprise security system providers), 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 enterprise security system providers, 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, 534 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 28, 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 enterprise security system providers, 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 enterprise security system providers are there based in Greece?

RevenueBase identified 97 enterprise security system providers 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 enterprise security system providers?

Athens leads with 24 headquartered companies, followed by Attica (3) and Agia Paraskevi (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 534 verified decision-maker contacts tracked across these 97 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 28, 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.