Company lists · Data refreshed September 2026
Top 25 Telecommunication consulting companies based in Greece
RevenueBase identified 69 telecommunication consulting companies headquartered in Greece as of September 2026 and tracks 834 professional contacts across them, including 214 with verified work emails. Athens is the largest hub.
This list covers telecommunication consulting 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 16, 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 25 largest telecommunication consulting companies based in Greece
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 202 contacts → | ||||
Partial evidence “Cosmos Business Systems is a leading Greek company that specializies in Information Technology and Telecommunications.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 2 | 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 16, 2026Thanks. The Data Team will review it. | |||||
| 3 | 34 contacts → | ||||
Indirect evidence “Professional Service Partners (PSP), with its people-centered communication message “People Supporting People”, is a key player in the Greek market providing integrated services…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 4 | 33 contacts → | ||||
Partial 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 16, 2026Thanks. The Data Team will review it. | |||||
| 5 | 29 contacts → | ||||
Indirect evidence “TELESTO Technologies, based in Athens-Greece, specializes in Broadband Wireless, Telematics and Telemetry.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 6 | 23 contacts → | ||||
Indirect evidence “We at ENOMIX are a group of passionate people delighted to work and contribute in the area of Next Generation Networks, Competition and Infrastructure Development.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 7 | 21 contacts → | ||||
Indirect evidence “TCS Toolbox provides premier consultancy services for the execution of large-scale Information Technology and Communications projects, serving both public and private sectors…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 8 | 18 contacts → | ||||
Partial evidence “Zeuxis is an innovative company specializing in telecommunications networks and electrical-electronic installations.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 9 | 17 contacts → | ||||
Indirect evidence “Established in 2005, FASMETRICS has grown into a trusted partner for mobile network operators and technology vendors worldwide.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 10 | 14 contacts → | ||||
Indirect evidence “OPENCOMM SA is a dynamic company specializing in communication technology and software development.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 11 | 12 contacts → | ||||
Indirect evidence “Η VOICELAND δραστηριοποιείται στο χώρο των τηλεπικοινωνιών.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 12 | 12 contacts → | ||||
Indirect evidence “Η Advanced Integrated Communication E.Π.Ε, διαρκώς εξελισσόμενη εταιρεία στον χώρο της υψηλής τεχνολογίας, αποτελείται από στελέχη τα όποια από το θέτουν ως προτεραιότητα την…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 13 | 10 contacts → | ||||
Indirect evidence “LEXIS S.A.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 14 | 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 16, 2026Thanks. The Data Team will review it. | |||||
| 15 | 10 contacts → | ||||
Partial 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 16, 2026Thanks. The Data Team will review it. | |||||
| 16 | 9 contacts → | ||||
Partial evidence “Dynacom Ltd: Your Trusted Partner in Integrated Telecommunication and Networking Solutions At Dynacom Ltd, we specialize in the counseling, design, and implementation of…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 17 | 7 contacts → | ||||
Partial evidence “Wavetel S.A is a Greek company specialized in the sector of Telecommunications.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 18 | 7 contacts → | ||||
Partial evidence “City Consulting Ltd.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 19 | 6 contacts → | ||||
Partial 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 16, 2026Thanks. The Data Team will review it. | |||||
| 20 | 5 contacts → | ||||
Partial evidence “DTNS provides nationwide integrated telecommunication solutions since its foundation in 1994.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 21 | 5 contacts → | ||||
Partial evidence “Pscom Unified Communication was founded in 2005 by executives with a strong background in telecommunications and networks dating back to 1980.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 22 | 5 contacts → | ||||
Indirect evidence “At Praxis Factor Telecoms we are privileged to have the full picture being part of the technological evolution.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 23 | 4 contacts → | ||||
Indirect evidence “Lumina Link Fiber Solutions is an innovative telecom infrastructure company providing design, project management, network deployment, maintenance, and operation services for fixed…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 24 | 2 contacts → | ||||
Partial evidence “Design, Consulting and Implementation for Next Generation Networks such as Fiber, Copper, MW, Satellite.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 25 | 1 contacts → | ||||
Partial evidence “Founded in 2010, Daring Star Ltd provides integration services for Telecommunication businesses.” Source: RevenueBase Database · checked Sep 16, 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: telecommunication consulting 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 telecommunication consulting companies.
- Partial evidence
- Its own public description names part of telecommunication consulting companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name telecommunication consulting 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 69 telecommunication consulting companies based in Greece
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 214 reachable decision-makers.
Free signup · no credit card
Telecommunication consulting companies based in Greece at a glance
As of Sep 16, 2026Companies by employee count
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 69 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 telecommunication consulting 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 “telecommunication consulting 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 telecommunication consulting 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 telecommunication consulting 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, 214 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 16, 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 telecommunication consulting 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 telecommunication consulting companies are there based in Greece?
RevenueBase identified 69 telecommunication consulting 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 telecommunication consulting companies?
Athens leads with 20 headquartered companies, followed by Attica (2) and Arcadia (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 214 verified decision-maker contacts tracked across these 69 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 16, 2026.
Ready to reach these companies? Verified emails and direct dials for all 69 telecommunication consulting companies based in Greece. Start with a free account, no credit card.
Download this list →Related lists
Telecommunication consulting companies by geography
- Telecommunication consulting companies based in Belo Horizonte, Brazil
- Telecommunication consulting companies based in Campinas, Brazil
- Telecommunication consulting companies based in Curitiba, Brazil
- Telecommunication consulting companies based in Rio De Janeiro, Brazil
- Telecommunication consulting companies based in Sao Paulo, Brazil
- Telecommunication consulting companies based in Calgary, Canada
- Telecommunication consulting companies based in Montreal, Canada
- Telecommunication consulting companies based in Toronto, Canada
- Telecommunication consulting companies based in Mumbai, India
- Telecommunication consulting companies based in New Delhi, India
- Telecommunication consulting companies based in Atlanta, United States
- Telecommunication consulting companies based in Austin, United States
Browse the directory
Browse: Companies home · All Greece lists · All Telecommunication consulting companies lists · New lists
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Telecommunication consulting companies based in Belo Horizonte, Brazil
- Telecommunication consulting companies based in Campinas, Brazil
- Telecommunication consulting companies based in Curitiba, Brazil
- Telecommunication consulting companies based in Rio De Janeiro, Brazil
- Telecommunication consulting companies based in Sao Paulo, Brazil
- Telecommunication consulting companies based in Calgary, Canada