Company lists · Data refreshed September 2026
Top 10 Prison security system providers based in Greece
RevenueBase identified 37 prison security system providers headquartered in Greece as of September 2026 and tracks 147 professional contacts across them, including 16 with verified work emails and 5 with mobile numbers. Athens is the largest hub.
This list covers prison 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 5, 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.
The 10 largest prison security system providers based in Greece
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 9 contacts → | ||||
Partial evidence “For more than 30 years the BGI team have been providing high security barrier solutions to public and private clients and facilities worldwide.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 7 contacts → | ||||
Indirect evidence “Ch.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 6 contacts → | ||||
Partial evidence “Ιn2solution is an advanced security solutions company based in Athens.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 4 contacts → | ||||
Indirect evidence “G.I.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | 2 contacts → | ||||
Indirect evidence “Ειδικότητα της εταιρίας μας είναι τα ειδικά έργα όπως: • Μελέτη και κατασκευή συστημάτων ασφαλείας σύμφωνα με τις ανάγκες της επιχείρησής σας • Θύρες Αποτροπής Ληστειών •…” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 1 contacts → | ||||
Strong evidence “Digitfort Security Systems is a Greek company of installing and providing security systems.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 1 contacts → | ||||
Indirect evidence “Μέγιστη ασφάλεια με συναγερμούς PARADOX & VESTA Μέγιστη ασφάλεια με CCTV & Access Dahua-Hikvision-Tiandy Πιστοποιημένος συνεργάτης GRANDSTREAM σε ολοκληρωμένες λύσεις…” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | 1 contacts → | ||||
Partial evidence “Η BML Security είναι μια σύγχρονη εταιρεία που δραστηριοποιείται στο χώρο των συστημάτων ασφαλείας, επενδύοντας στην έρευνα και την εξέλιξη, έτσι ώστε να παρέχει υπηρεσίες υψηλού…” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
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: prison 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 prison security system providers.
- Partial evidence
- Its own public description names part of prison 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 prison 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 10 of 37 prison security system providers based in Greece
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Prison security system providers based in Greece at a glance
As of Sep 5, 2026Companies by employee count
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 prison 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 “prison 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 prison 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 prison 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, 16 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 5, 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 prison 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 prison security system providers are there based in Greece?
RevenueBase identified 37 prison 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?
Union Security, headquartered in Agios Stefanos, tops this list with the largest team on record.
Which city has the most prison security system providers?
Athens leads with 8 headquartered companies, followed by Agios Stefanos (1) and Attica (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 16 verified decision-maker contacts tracked across these 37 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 5, 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.
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