Company lists · Data refreshed September 2026

Top 25 IT infrastructure companies based in Greece

Name: IT infrastructure companies based in Greece
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 83 companies tracked

RevenueBase identified 83 IT infrastructure companies headquartered in Greece as of September 2026 and tracks 927 professional contacts across them, including 349 with verified work emails. Athens is the largest hub.

This list covers IT infrastructure companies 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 20, 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 20, 2026 86% judged on-target in blind review

83Companies

927Contacts tracked

349Verified emails

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The 25 largest IT infrastructure companies based in Greece

Ranked by team size

Top 25 of 83 IT infrastructure companies based in Greece, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to IT infrastructure companies: 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	Cosmos Business Systems	Indirect evidence	Metamorfosi, GreeceHQ checked Sep 20, 2026	51-200	202 contacts →
	Indirect evidence “Cosmos Business Systems is a leading Greek company that specializies in Information Technology and Telecommunications.” Source: RevenueBase Database · checked Sep 20, 2026
2	Upcominds	Partial evidence	Dafni, GreeceHQ checked Sep 20, 2026	201-500	145 contacts →
	Partial evidence “UpcoMinds is a dynamic Information Technology company that provides Managed IT Services, Mobile Apps (IOS, Android), IT Consulting and Support, Software Architecture & Design…” Source: RevenueBase Database · checked Sep 20, 2026
3	Infinitum S.A	Partial evidence	Lykovrysi, GreeceHQ checked Sep 20, 2026	51-200	90 contacts →
	Partial 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 20, 2026
4	Wizz IT	Indirect evidence	Cholargos, GreeceHQ checked Sep 20, 2026	11-50	49 contacts →
	Indirect evidence “Technology Consulting” Source: RevenueBase Database · checked Sep 20, 2026
5	Smartns Technological S.A	Strong evidence	Athens, GreeceHQ checked Sep 20, 2026	51-200	43 contacts →
	Strong 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 20, 2026
6	Bluestream Solutions S.A	Partial evidence	Thessaloniki, GreeceHQ checked Sep 20, 2026	11-50	38 contacts →
	Partial evidence “BlueStream Solutions S.A, a Byte subsidiary, is an established, rapidly growing managed services provider, offering both on-premise and multi-cloud infrastructure as well as cloud…” Source: RevenueBase Database · checked Sep 20, 2026
7	Elmisystems SA	Partial evidence	Athens, GreeceHQ checked Sep 20, 2026	51-200	33 contacts →
	Partial evidence “ELMISYSTEMS is a large Greek IT company with a leading role in the IT Industry and the Retail Business in Greece.” Source: RevenueBase Database · checked Sep 20, 2026
8	Noris Mike	Partial evidence	Thessaloniki, GreeceHQ checked Sep 20, 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 20, 2026
9	Systecom S.A	Indirect evidence	Metamorfosi, GreeceHQ checked Sep 20, 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 20, 2026
10	Precicom S.A	Indirect evidence	Chalandri, GreeceHQ checked Sep 20, 2026	11-50	19 contacts →
	Indirect evidence “30 years of success and Clients TRUST we earn every single day!” Source: RevenueBase Database · checked Sep 20, 2026
11	Netsquare Corporation	Partial evidence	Athens, GreeceHQ checked Sep 20, 2026	11-50	16 contacts →
	Partial evidence “Netsquare is dealing with the design, installation and support of information systems and network infrastructures by proposing optimal customization taking into account the…” Source: RevenueBase Database · checked Sep 20, 2026
12	Nybble IT Management Services For Business	Indirect evidence	Athens, GreeceHQ checked Sep 20, 2026	11-50	16 contacts →
	Indirect evidence “Nybble was founded in November 2015 and is landed in Athens, Greece.” Source: RevenueBase Database · checked Sep 20, 2026
13	Gricgroup	Indirect evidence	Agía Paraskeví, GreeceHQ checked Sep 20, 2026	11-50	10 contacts →
	Indirect evidence “GRIC Group is an ambitious next-generation ΙΤ services company delivering Distribution, Advanced electronics repairs, Hardware / Software sales & support, Hosting and Web design…” Source: RevenueBase Database · checked Sep 20, 2026
14	Akéreon Business & IT Consulting	Partial evidence	Glyfada, GreeceHQ checked Sep 20, 2026	1-10	10 contacts →
	Partial evidence “akereon is a business services company specializing in Information Technology, focused on helping organizations leverage IT to achieve measurable business results.” Source: RevenueBase Database · checked Sep 20, 2026
15	Cloudon PC	Partial evidence	Agia Paraskevi, GreeceHQ checked Sep 20, 2026	11-50	10 contacts →
	Partial evidence “Η CloudOn παρέχει ολοκληρωμένες λύσεις Cloud, IT υποδομών και εταιρικής τηλεφωνίας (VoIP), βοηθώντας επιχειρήσεις να λειτουργούν με αξιοπιστία, ασφάλεια και υψηλή απόδοση.” Source: RevenueBase Database · checked Sep 20, 2026
16	IBS Informatics Business Services	Partial evidence	Piraeus, GreeceHQ checked Sep 20, 2026	1-10	9 contacts →
	Partial evidence “From 1995 iBS was founded in 1995 and has rightfully been established as a steadily growing IT company, with dynamic presence in the sector of integrated IT and Web solutions.” Source: RevenueBase Database · checked Sep 20, 2026
17	IT Synergy S.A	Indirect evidence	Athens, GreeceHQ checked Sep 20, 2026	11-50	8 contacts →
	Indirect evidence “Who are we?” Source: RevenueBase Database · checked Sep 20, 2026
18	Consultit	Indirect evidence	Agios Dimitrios, GreeceHQ checked Sep 20, 2026	1-10	7 contacts →
	Indirect evidence “Welcome to our page!” Source: RevenueBase Database · checked Sep 20, 2026
19	Professional IT Services LTD	Indirect evidence	Marousi, GreeceHQ checked Sep 20, 2026	1-10	7 contacts →
	Indirect evidence “We are an one-stop shop for all your business’s tech needs.” Source: RevenueBase Database · checked Sep 20, 2026
20	LET IT BEE	Strong evidence	Marousi, GreeceHQ checked Sep 20, 2026	1-10	7 contacts →
	Strong evidence “Let IT Bee is a Technology Oriented Company intended to provide customers with Edge Technology Solutions in every part of their Computer Based Infrastructure.” Source: RevenueBase Database · checked Sep 20, 2026
21	Arebas	Partial evidence	Pallini, GreeceHQ checked Sep 20, 2026	1-10	5 contacts →
	Partial evidence “The AREBAS founded in 2013 and began its activities in the IT sector the purpose of the company is to promote high end technology and the aim to provide modern and innovative…” Source: RevenueBase Database · checked Sep 20, 2026
22	Systematics S.A	Indirect evidence	Agia Paraskevi, GreeceHQ checked Sep 20, 2026	11-50	4 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
23	Fairynetwork	Indirect evidence	Athens, GreeceHQ checked Sep 20, 2026	1-10	3 contacts →
	Indirect evidence “Fairynetwork is an Information Technology company, providing advanced technology services in the areas of hardware, network, operating software and ERP/CRM Software.” Source: RevenueBase Database · checked Sep 20, 2026
24	ITNS	Partial evidence	Thessaloniki, GreeceHQ checked Sep 20, 2026	1-10	3 contacts →
	Partial evidence “The stress of IT distractions is growing nowadays and as a business owner in order you and your staff to focus on your business you need someone to help you.” Source: RevenueBase Database · checked Sep 20, 2026
25	Ginfinity Solutions LTD	Indirect evidence	Athens, GreeceHQ checked Sep 20, 2026	1-10	2 contacts →
	Indirect evidence “We provide project implementation services based on our extensive experience, track record and expertise in Virtualization, Cloud building, Enterprise Backup and Recovery, High…” Source: RevenueBase Database · checked Sep 20, 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: IT infrastructure companies. 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 IT infrastructure companies.
Partial evidence: Its own public description names part of IT infrastructure companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name IT infrastructure companies. 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 83 IT infrastructure companies based in Greece

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IT infrastructure companies based in Greece at a glance

As of Sep 20, 2026

37.6%Verified-email coverage

11.2Average contacts per company

1-10Median size (employees)

20.5%Largest-city concentration · Athens

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 83 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 IT infrastructure companies, 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 “IT infrastructure companies”. 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 IT infrastructure companies), 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 IT infrastructure companies, 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, 349 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 20, 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 IT infrastructure companies, 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 IT infrastructure companies are there based in Greece?

RevenueBase identified 83 IT infrastructure companies 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?

Cosmos Business Systems, headquartered in Metamorfosi, tops this list with the largest team on record.

Which city has the most IT infrastructure companies?

Athens leads with 17 headquartered companies, followed by Marousi (2) and Metamorfosi (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 349 verified decision-maker contacts tracked across these 83 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 20, 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.