Company lists · Data verified August 2026

Top 25 Advertising agencies based in Athens, Greece

Name: Advertising agencies based in Athens, Greece
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 145 companies tracked

There are 145 advertising agencies headquartered in Athens, Greece (RevenueBase, August 2026). RevenueBase tracks 1,408 professional contacts across them, including 216 with verified work emails and 49 with mobile numbers. Athens is the largest hub.

This list covers advertising agencies headquartered in Athens, Greece, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

145Companies

1,408Contacts tracked

216Verified emails

49Mobile numbers

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The 25 largest advertising agencies based in Athens, Greece

Ranked by team size

Top 25 of 145 advertising agencies based in Athens, Greece, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Ogilvy Greece	Athens	201-500	277	2
2	Tempo OMD Hellas	Athens	51-200	100	35
3	SPC	Athens	51-200	90	15
4	UM Greece	Athens	51-200	44	34
5	Radical Communications	Athens	11-50	38	1
6	Attp Advertising	Athens	11-50	31	16
7	Savvy Partners	Athens	11-50	29	17
8	Vitamin Media 360 Advertising Agency	Athens	11-50	29	9
9	Unlimited Creativity	Athens	11-50	22	1
10	Asterias Graphic Design Group	Athens	11-50	18	1
11	Cicero Advertising	Athens	11-50	14	13
12	2yolk	Athens	11-50	14	2
13	Tenfour Communication Agency	Athens	11-50	12	6
14	Addictad Advertising	Athens	11-50	11	5
15	HÄST	Athens	1-10	11	5
16	Let's GO Bananas	Athens	11-50	8	2
17	Newness Agency	Athens	11-50	7	2
18	Exad Creative Agency	Athens	11-50	5	5
19	Yonas Design LTD	Athens	1-10	5	1
20	Molivi Design Studio	Athens	1-10	5	1
21	Adaptly	Athens	1-10	4	3
22	ODDD	Athens	1-10	4	2
23	LOS Adgeles	Athens	11-50	3	1
24	SDM	Athens	1-10	3	1
25	W Corporate Communication Services	Athens	11-50	2	2

Showing 25 of 145 advertising agencies based in Athens, Greece

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Advertising agencies based in Athens, Greece at a glance

As of Aug 28, 2026

1-10Median size (employees)

AthensLargest hub · 145 HQs

49Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

Advertising agencies by metro in Greece

Metro	Companies
Advertising agencies in Athens	145
Advertising agencies in Thessaloniki	21
Advertising agencies in Chalandri	8
Advertising agencies in Salonica	6
Advertising agencies in Attica	5
Advertising agencies in Patras	3
Advertising agencies in Piraeus	3

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “advertising agencies”, with match quality audited by blind human judging, and headquartered in Athens, Greece.
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: Contact records re-verify on a rolling cadence; 0 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many advertising agencies are there based in Athens, Greece?

There are 145 advertising agencies headquartered in Athens, Greece as of August 2026 (RevenueBase).

What is the largest company on this list?

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

Which city has the most advertising agencies?

Athens leads with 145 headquartered companies, followed by Thessaloniki (21) and Chalandri (8).

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 216 verified decision-maker contacts tracked across these 145 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.