Company lists · Data refreshed September 2026

Top 25 Internal communications agencies based in Greece

RevenueBase identified 93 internal communications agencies headquartered in Greece as of September 2026 and tracks 1,115 professional contacts across them, including 304 with verified work emails. Athens is the largest hub.

This list covers internal communications agencies 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
93Companies
1,115Contacts tracked
304Verified emails
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The 25 largest internal communications agencies based in Greece

Ranked by team size
Top 25 of 93 internal communications agencies 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 internal communications agencies: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceAlimos, GreeceHQ checked Sep 20, 2026201-500180 contacts →

Indirect evidence

“MSPS is an award-winning Integrated Marketing and Sales Services Agency that consists of talented, fun and creative individuals.”

Source: RevenueBase Database · checked Sep 20, 2026
2Partial evidenceAthens, GreeceHQ checked Sep 20, 202651-20071 contacts →

Partial evidence

“We are a 360° communications agency.”

Source: RevenueBase Database · checked Sep 20, 2026
3Partial evidenceMarousi, GreeceHQ checked Sep 20, 202651-20059 contacts →

Partial evidence

“Solid Havas is an independent 360o communication agency offering its clients fully integrated effective solutions through Advertising, PR, Digital, BTL and CSR services.”

Source: RevenueBase Database · checked Sep 20, 2026
4Partial evidenceThessaloniki, GreeceHQ checked Sep 20, 202651-20055 contacts →

Partial evidence

“Admine is a leading communications agency with strong digital DNA, manned by a group of mad-men & mad-women all bridging consumers and brands using cutting edge communication…”

Source: RevenueBase Database · checked Sep 20, 2026
5Partial evidenceAgios Dimitrios, GreeceHQ checked Sep 20, 202611-5038 contacts →

Partial evidence

“Radical Communications SA is an award-winning 360 marketing and communications agency, headquartered in Athens.”

Source: RevenueBase Database · checked Sep 20, 2026
6Partial evidenceAthens, GreeceHQ checked Sep 20, 202611-5030 contacts →

Partial evidence

“Being a mere 19 years on the Communication /Advertising Universe, we find it normal to feel like teenagers (some don’t seem to consider it a virtue, but our clients do).”

Source: RevenueBase Database · checked Sep 20, 2026
7Indirect evidenceHalandri, GreeceHQ checked Sep 20, 202611-5024 contacts →

Indirect evidence

“We are Giraffes in the Kitchen, an award-winning agency that blurs the lines between disciplines and delivers measurable experiences by understanding needs, evaluating the…”

Source: RevenueBase Database · checked Sep 20, 2026
8Partial evidenceKhalándrion, GreeceHQ checked Sep 20, 202651-20022 contacts →

Partial evidence

“Publicis Groupe Greece is a Communications Group that operates under a highly modular Connecting Company model, a unique platform that gives clients plug & play access to our…”

Source: RevenueBase Database · checked Sep 20, 2026
9Partial evidenceAthens, GreeceHQ checked Sep 20, 202611-5022 contacts →

Partial evidence

“We are proud members of the communication family of V+O Greece.”

Source: RevenueBase Database · checked Sep 20, 2026
10Partial evidenceAlimos, GreeceHQ checked Sep 20, 202611-5021 contacts →

Partial evidence

“At FMN, we view communication as a journey.”

Source: RevenueBase Database · checked Sep 20, 2026
11Partial evidenceAthens, GreeceHQ checked Sep 20, 202611-5020 contacts →

Partial evidence

“Gravity The Newtons is a strategic communication and public relations agency.”

Source: RevenueBase Database · checked Sep 20, 2026
12Indirect evidenceGerakas, GreeceHQ checked Sep 20, 202611-5020 contacts →

Indirect evidence

“Η φιλοσοφία μας στηρίζεται στην παροχή υπηρεσιών 360 επικοινωνίας, με τη δημιουργία μιας επιτυχημένης στρατηγικής και ολοκληρώνοντας την άριστη υλοποίηση της ιδέας.”

Source: RevenueBase Database · checked Sep 20, 2026
13Partial evidenceAthens, GreeceHQ checked Sep 20, 202611-5019 contacts →

Partial evidence

“Pitch is a customer-oriented PR & Strategic Communications agency, created by a highly knowledgeable and creative team of experts, designed to provide holistic solutions for…”

Source: RevenueBase Database · checked Sep 20, 2026
14Indirect evidenceΠειραιάς, GreeceHQ checked Sep 20, 202611-5018 contacts →

Indirect evidence

“Ξεκινήσαμε το 1987, στην καρδιά της αγοράς στο λιμάνι του Πειραιά όπου εδρεύουμε και σήμερα.”

Source: RevenueBase Database · checked Sep 20, 2026
15Partial evidenceMarousi, GreeceHQ checked Sep 20, 202611-5016 contacts →

Partial evidence

“efrata, an affiliated company with Finn Partners, operates in the field of Communication & Public Relations efrata’s approach is client-centric, combining the importance in detail…”

Source: RevenueBase Database · checked Sep 20, 2026
16Partial evidenceAthens, GreeceHQ checked Sep 20, 202611-5012 contacts →

Partial evidence

“TENFOUR is a full communication services agency for the digital age, founded in October 2011.”

Source: RevenueBase Database · checked Sep 20, 2026
17Partial evidenceAthens, GreeceHQ checked Sep 20, 20261-1012 contacts →

Partial evidence

“Danezis Stories is a strategic communications agency based in Athens.”

Source: RevenueBase Database · checked Sep 20, 2026
18Indirect evidenceTriandria, GreeceHQ checked Sep 20, 202611-5011 contacts →

Indirect evidence

“It’s pronounced FotOnE.”

Source: RevenueBase Database · checked Sep 20, 2026
19Partial evidenceAthens, GreeceHQ checked Sep 20, 202611-509 contacts →

Partial evidence

Communication EFFECT, is an integrated communication services agency, founded in 1995, and has been a part of the global PR network Edelman since Our mission is to support our…”

Source: RevenueBase Database · checked Sep 20, 2026
20Indirect evidenceKifisiá, GreeceHQ checked Sep 20, 20261-109 contacts →

Indirect evidence

“At The Kompany, we are doers.”

Source: RevenueBase Database · checked Sep 20, 2026
21Partial evidenceAthens, GreeceHQ checked Sep 20, 202611-507 contacts →

Partial evidence

“Since its establishment in 2003, Spin Communications has come to be recognized as one of the most up-to-date, innovative and effective companies in the field of communications and…”

Source: RevenueBase Database · checked Sep 20, 2026
22Indirect evidenceThessaloniki, GreeceHQ checked Sep 20, 20261-107 contacts →

Indirect evidence

“Στην kitchen.was έχουμε ακόρεστη όρεξη για δημιουργία και ειδικευόμαστε στη… fusion προσέγγιση της επικοινωνίας!”

Source: RevenueBase Database · checked Sep 20, 2026
23Partial evidenceThessaloniki, GreeceHQ checked Sep 20, 202611-506 contacts →

Partial evidence

“THE COMPANY New communication is offering branding and advertising services to public and Private corporations in greece and foreign countries using new communication methods.”

Source: RevenueBase Database · checked Sep 20, 2026
24Partial evidenceGlyfada, GreeceHQ checked Sep 20, 20261-105 contacts →

Partial evidence

“Smart Ideas is a Communications, Public Relations and Advertising company that covers a full range of communications needs.”

Source: RevenueBase Database · checked Sep 20, 2026
25Indirect evidenceThessaloniki, GreeceHQ checked Sep 20, 20261-105 contacts →

Indirect evidence

“Είμαστε διαφορετικοί, είμαστε δίπλα σας, είμαστε λίγοι, αλλά και πολλοί ταυτόχρονα, σκεφτόμαστε δημιουργικά, σκεφτόμαστε για εσάς, ακούμε τις ανάγκες σας, είμαστε η Valis…”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 93 internal communications agencies based in Greece

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Internal communications agencies based in Greece at a glance

As of Sep 20, 2026
27.3%Verified-email coverage
12.0Average contacts per company
1-10Median size (employees)
44.1%Largest-city concentration · Athens
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
50
11-50
34
51-200
8
201-500
1

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 93 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 internal communications agencies, 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 “internal communications agencies”. 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 internal communications agencies), 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 internal communications agencies, 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, 304 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.

Internal communications agencies by metro

  • Internal communications agencies in Athens41

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 internal communications agencies, 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 internal communications agencies are there based in Greece?

RevenueBase identified 93 internal communications agencies 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?

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

Which city has the most internal communications agencies?

Athens leads with 41 headquartered companies, followed by Greece (2) and Marousi (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 304 verified decision-maker contacts tracked across these 93 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.