Company lists · Data refreshed September 2026

Top 25 Telecommunications providers based in Greece

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

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 98 companies tracked

RevenueBase identified 98 telecommunications providers headquartered in Greece as of September 2026 and tracks 4,272 professional contacts across them, including 798 with verified work emails. Athens is the largest hub.

This list covers telecommunications 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 19, 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 19, 2026 86% judged on-target in blind review

98Companies

4,272Contacts tracked

798Verified emails

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The 25 largest telecommunications providers based in Greece

Ranked by team size

Top 25 of 98 telecommunications providers based in Greece, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to telecommunications 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	NOVA	Indirect evidence	Athens, GreeceHQ checked Sep 19, 2026	1,001-5,000	2,399 contacts →
	Indirect evidence “Nova Greece, is a major, fully integrated provider of mobile and fixed telephony services, broadband internet, pay TV, and information and communication technologies (ICT).” Source: RevenueBase Database · checked Sep 19, 2026
2	Mediatel SA	Strong evidence	Athens, GreeceHQ checked Sep 19, 2026	501-1,000	152 contacts →
	Strong evidence “Mediatel S.A, operating in the field of telecommunication services since 1995, delivers innovative & quality-driven solutions across all industry segments.” Source: RevenueBase Database · checked Sep 19, 2026
3	EETT	Indirect evidence	Athens, GreeceHQ checked Sep 19, 2026	51-200	104 contacts →
	Indirect evidence “Η Εθνική Επιτροπή Τηλεπικοινωνιών και Ταχυδρομείων (EETT) είναι Ανεξάρτητη Διοικητική Αρχή.” Source: RevenueBase Database · checked Sep 19, 2026
4	Newsphone Hellas	Indirect evidence	Kallithea, GreeceHQ checked Sep 19, 2026	1,001-5,000	103 contacts →
	Indirect evidence “Εξειδίκευση, αξιοπιστία, τεχνογνωσία, τεχνολογίες αιχμής αποτελούν έννοιες ταυτόσημες με το όνομα της NEWSPHONE HELLAS στον τομέα της παροχής καινοτόμων υπηρεσιών επικοινωνίας…” Source: RevenueBase Database · checked Sep 19, 2026
5	Hellas SAT	Indirect evidence	Koropi, GreeceHQ checked Sep 19, 2026	51-200	68 contacts →
	Indirect evidence “About Us Established in 2001, Hellas Sat is a leading satellite communications solutions provider, operating from the 39° East orbital position with three satellites and two…” Source: RevenueBase Database · checked Sep 19, 2026
6	Oteglobe	Indirect evidence	Athens, GreeceHQ checked Sep 19, 2026	51-200	49 contacts →
	Indirect evidence “OTEGLOBE, headquartered in Athens, is the Int'l Wholesale Business Unit of OTE, the Greek incumbent & the leading wholesale carrier in S.E.” Source: RevenueBase Database · checked Sep 19, 2026
7	Inalan	Strong evidence	Athens, GreeceHQ checked Sep 19, 2026	51-200	48 contacts →
	Strong evidence “Qualitative telecommunication has become an integral part of modern life as the communication between people is a precious commodity that unites all of us.” Source: RevenueBase Database · checked Sep 19, 2026
8	Combotech	Indirect evidence	Peristeri, GreeceHQ checked Sep 19, 2026	51-200	40 contacts →
	Indirect evidence “ComboTech offers specialized services - to business customers, as well as private end users - in the broader area of modern communication technologies and telecoms sites'…” Source: RevenueBase Database · checked Sep 19, 2026
9	Skytelecom	Indirect evidence	Πειραίας, GreeceHQ checked Sep 19, 2026	11-50	39 contacts →
	Indirect evidence “Από την πρώτη μέρα λειτουργίας μας, εξυπηρετούμε τους πελάτες μας με συνέπεια, χτίζοντας σχέση εμπιστοσύνης και άριστης εξυπηρέτησης.” Source: RevenueBase Database · checked Sep 19, 2026
10	Circet Hellas	Strong evidence	Gerakas, GreeceHQ checked Sep 19, 2026	51-200	33 contacts →
	Strong evidence “We are Circet, the number 1 Network Service Provider in Europe and a major player of the fast-growing global telecommunications industry.” Source: RevenueBase Database · checked Sep 19, 2026
11	Dataplex SA	Strong evidence	Athens, GreeceHQ checked Sep 19, 2026	11-50	21 contacts →
	Strong evidence “Partnering with leading international companies, DATAPLEX makes available in the Greek market the most up to date, advanced telecommunications technologies.” Source: RevenueBase Database · checked Sep 19, 2026
12	Ttsa S.A	Strong evidence	N. Psychiko, GreeceHQ checked Sep 19, 2026	11-50	18 contacts →
	Strong evidence “TTSA S.A is a telecommunications company that is incorporated since 2007.” Source: RevenueBase Database · checked Sep 19, 2026
13	Zefxis TEL	Strong evidence	Ακταίο, GreeceHQ checked Sep 19, 2026	201-500	18 contacts →
	Strong evidence “Zeuxis is an innovative company specializing in telecommunications networks and electrical-electronic installations.” Source: RevenueBase Database · checked Sep 19, 2026
14	Grid Telecom Greece	Indirect evidence	Athens, GreeceHQ checked Sep 19, 2026	1-10	13 contacts →
	Indirect evidence “IPTO’s vehicle for providing telecom services to national and international Providers.” Source: RevenueBase Database · checked Sep 19, 2026
15	Nortonline	Strong evidence	Iráklion, GreeceHQ checked Sep 19, 2026	11-50	12 contacts →
	Strong evidence “Nortonline, was established in 2004 with headquarters in Iraklion, Crete and grew into a leading B2B provider in the Telecommunications, IT and Smart Home sectors.” Source: RevenueBase Database · checked Sep 19, 2026
16	Voiceland	Indirect evidence	Néa Ionía, GreeceHQ checked Sep 19, 2026	11-50	12 contacts →
	Indirect evidence “Η VOICELAND δραστηριοποιείται στο χώρο των τηλεπικοινωνιών.” Source: RevenueBase Database · checked Sep 19, 2026
17	Lexis SA	Indirect evidence	Gerakas, GreeceHQ checked Sep 19, 2026	11-50	10 contacts →
	Indirect evidence “LEXIS S.A.” Source: RevenueBase Database · checked Sep 19, 2026
18	IMTEL	Indirect evidence	Μεταμορφωση, GreeceHQ checked Sep 19, 2026	11-50	10 contacts →
	Indirect evidence “IMTEL provides a range of communication technologies that can help a business of any size to meet the challenges of our times.” Source: RevenueBase Database · checked Sep 19, 2026
19	LTCOM	Strong evidence	Thessaloniki, GreeceHQ checked Sep 19, 2026	11-50	10 contacts →
	Strong evidence “LTcom was established in 1994 and incorporates in the area of telecommunications, while it specializes in telecommunications systems for integrated digital voice and data…” Source: RevenueBase Database · checked Sep 19, 2026
20	Wavetel S.A	Strong evidence	Piraeus, GreeceHQ checked Sep 19, 2026	11-50	7 contacts →
	Strong evidence “Wavetel S.A is a Greek company specialized in the sector of Telecommunications.” Source: RevenueBase Database · checked Sep 19, 2026
21	BTS Business Telecom Solutions	Strong evidence	Athens, GreeceHQ checked Sep 19, 2026	11-50	6 contacts →
	Strong evidence “BTS is active in the provision of integrated telecommunications and technology solutions, providing a range of services that offer high added value to our customers.” Source: RevenueBase Database · checked Sep 19, 2026
22	Novelcomm	Indirect evidence	Athens, GreeceHQ checked Sep 19, 2026	1-10	6 contacts →
	Indirect evidence “Internet Service Provider” Source: RevenueBase Database · checked Sep 19, 2026
23	Intech Unique Solutions	Indirect evidence	Kalamariá, GreeceHQ checked Sep 19, 2026	1-10	6 contacts →
	Indirect evidence “Η InTech δραστηριοποιείται δυναμικά στο χώρο της πληροφορικής και των τηλεπικοινωνιών και παρέχει ολοκληρωμένες λύσεις υψηλής ποιότητας.” Source: RevenueBase Database · checked Sep 19, 2026
24	Connecticore	Indirect evidence	Marousi, GreeceHQ checked Sep 19, 2026	11-50	5 contacts →
	Indirect evidence “At its Core, it is all about connecting Technologies, Networks and Business Resources intelligently, one company at a time.” Source: RevenueBase Database · checked Sep 19, 2026
25	DTNS	Strong evidence	Nea Philadelpheia, GreeceHQ checked Sep 19, 2026	11-50	5 contacts →
	Strong evidence “DTNS provides nationwide integrated telecommunication solutions since its foundation in 1994.” Source: RevenueBase Database · checked Sep 19, 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: telecommunications 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 telecommunications providers.
Partial evidence: Its own public description names part of telecommunications providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name telecommunications 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 98 telecommunications providers based in Greece

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Telecommunications providers based in Greece at a glance

As of Sep 19, 2026

18.7%Verified-email coverage

43.6Average contacts per company

11-50Median size (employees)

23.5%Largest-city concentration · Athens

Sep 19, 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 98 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 telecommunications 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 “telecommunications 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 telecommunications 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 telecommunications 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, 798 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 19, 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 telecommunications 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 telecommunications providers are there based in Greece?

RevenueBase identified 98 telecommunications 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?

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

Which city has the most telecommunications providers?

Athens leads with 23 headquartered companies, followed by Thessaloniki (5) and Kalamaria (3).

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 798 verified decision-maker contacts tracked across these 98 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 19, 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.