Company lists · Data refreshed September 2026

Top 25 Online advertising agencies based in Greece

Name: Online advertising agencies based in Greece
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 490 companies tracked

RevenueBase identified 490 online advertising agencies headquartered in Greece as of September 2026 and tracks 2,297 professional contacts across them, including 536 with verified work emails and 79 with mobile numbers. Athens is the largest hub.

This list covers online advertising 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

490Companies

2,297Contacts tracked

536Verified emails

79Mobile numbers

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The 25 largest online advertising agencies based in Greece

Ranked by team size

Top 25 of 490 online advertising agencies based in Greece, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names online advertising agencies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Baas DigitalIndirect evidence	Athens, GreeceHQ checked Sep 5, 2026	11-50	73
	“Opening up in the center of Athens in 2011, BAAS DIGITAL has evolved into a 360° digital performance agency serving a global clientele.” Source: company website · checked Sep 5, 2026
2	SocialabPartial evidence	Athens, GreeceHQ checked Sep 5, 2026	51-200	66
	“Socialab is a digital-first advertising agency based in Athens, Greece.” Source: company website · checked Sep 5, 2026
3	NetstudioIndirect evidence	Athens, GreeceHQ checked Sep 5, 2026	51-200	48
	“Do we do corporate websites, e-shops & digital corporate identities?” Source: company website · checked Sep 5, 2026
4	Generation YIndirect evidence	Athens, GreeceHQ checked Sep 5, 2026	51-200	42
	“Founded in Generation Y is a market leader, innovative internet consulting, web design and development agency that helps clients to drive cost-effective sales and support their…” Source: company website · checked Sep 5, 2026
5	RascalIndirect evidence	Kifissia, GreeceHQ checked Sep 5, 2026	11-50	42
	“We are Rascal: The creative agency with the experience and ability to manage brands in the digital world.” Source: company website · checked Sep 5, 2026
6	Digital4uIndirect evidence	Athens, GreeceHQ checked Sep 5, 2026	11-50	40
	“Digital4u is a Digital Agency that was founded in 2013 and over the years, the company has excelled its services.” Source: company website · checked Sep 5, 2026
7	Globe ONE DigitalIndirect evidence	Athens, GreeceHQ checked Sep 5, 2026	11-50	40
	“At Globe One Digital, we are more than just a digital agency - we are passionate innovators who have been driving digital communication forward for over 25 years.” Source: company website · checked Sep 5, 2026
8	VALUEIndirect evidence	Néa Smírni, GreeceHQ checked Sep 5, 2026	11-50	40
	“We don't use AI.” Source: company website · checked Sep 5, 2026
9	CactusIndirect evidence	Thessaloniki, GreeceHQ checked Sep 5, 2026	11-50	38
	“Cactus provides web development/design and digital marketing/promotional services, along with graphic design and tech support assistance.” Source: company website · checked Sep 5, 2026
10	The VscopeIndirect evidence	Palaio Faliro, GreeceHQ checked Sep 5, 2026	11-50	34
	“Founded in 2019 by Vassilis Polyzos & Lefteris Kallergis, THE VSCOPE Marketing Agency provides today's businesses with top-notch Strategic and Digital Marketing Services that work…” Source: company website · checked Sep 5, 2026
11	Adweb Digital HUBIndirect evidence	Chalandri, GreeceHQ checked Sep 5, 2026	11-50	34
	“At ADWEB, we help brands, agencies, and publishers thrive in an ever-evolving digital ecosystem by combining strategy, creativity, and data.” Source: company website · checked Sep 5, 2026
12	FlyxmarketingIndirect evidence	Nea Erythraia, GreeceHQ checked Sep 5, 2026	51-200	32
	“FlyxMarketing emerges as a beacon for brands aiming for legend status.” Source: company website · checked Sep 5, 2026
13	MediacubeIndirect evidence	Agia Paraskevi, GreeceHQ checked Sep 5, 2026	11-50	32
	“MEDIACUBE is an native digital agency with 22 years’ worth of experience in the digital landscape and an Award-Winning Digital Marketing Agency & Social Media Agency of the Year.” Source: company website · checked Sep 5, 2026
14	OmnicliqIndirect evidence	Thessaloniki, GreeceHQ checked Sep 5, 2026	11-50	30
	“Digital Consultants” Source: company website · checked Sep 5, 2026
15	DigitalupIndirect evidence	Athens, GreeceHQ checked Sep 5, 2026	11-50	30
	“DigitalUp is a dynamic company, founded in 2014 and located in Athens, in the field of Digital Marketing.” Source: company website · checked Sep 5, 2026
16	Vitamin Media 360 Advertising AgencyPartial evidence	Thessaloniki, GreeceHQ checked Sep 5, 2026	11-50	28
	“In short, we give integrated 360 Advertising Services.” Source: company website · checked Sep 5, 2026
17	PanadvertPartial evidence	Kifisia, GreeceHQ checked Sep 5, 2026	11-50	27
	“With a results and data driven culture, we provide integrated marketing, consulting and digital marketing strategy that increases brand awareness and drive online revenue.” Source: company website · checked Sep 5, 2026
18	Team CandiIndirect evidence	Kallithéa, GreeceHQ checked Sep 5, 2026	11-50	25
	“TEAM CANDI 100% subsidiary of InfoQuest, is us, people, who with respect and will, offer our services in Greece and other countries globally with professional associates all over…” Source: company website · checked Sep 5, 2026
19	GIM AgencyIndirect evidence	Agios Dimitrios, GreeceHQ checked Sep 5, 2026	11-50	24
	“GIM Agency is the No1 choice of Businesses looking for a reliable partner to Level Up their Marketing.” Source: company website · checked Sep 5, 2026
20	WizardIndirect evidence	Amaroúsion, GreeceHQ checked Sep 5, 2026	11-50	22
	“Wizard is an award winning agency offering ''Results-based Marketing Solutions'' combining data, media and creative to grow businesses in the digital age.” Source: company website · checked Sep 5, 2026
21	KoolmetrixIndirect evidence	Chalandri, GreeceHQ checked Sep 5, 2026	11-50	21
	“Koolmetrix focuses on Performance Marketing, providing high quality services for top branded firms.” Source: company website · checked Sep 5, 2026
22	DarkponyIndirect evidence	GreeceHQ checked Sep 5, 2026	11-50	20
	“From web design and development to Internet marketing (SEO - SEM), Darkpony crafts delightful and disruptive digital experiences that suites your company's needs and reflects it's…” Source: company website · checked Sep 5, 2026
23	Viral PassionIndirect evidence	Kifisia, GreeceHQ checked Sep 5, 2026	11-50	19
	“We live and breathe conversions, ROAS and CPCs.” Source: company website · checked Sep 5, 2026
24	Sheepfish Creating NEW SpeciesStrong evidence	Chalandri, GreeceHQ checked Sep 5, 2026	1-10	18
	“Sheepfish - Creating New Species We are a unique advertising company, emphasizing on online media and mobile apps.” Source: company website · checked Sep 5, 2026
25	AdrightStrong evidence	Glifádha, GreeceHQ checked Sep 5, 2026	11-50	17
	“AdRight was founded in september 2012 by a small group of experienced affiliates and online advertising professionals.” Source: company website · checked Sep 5, 2026

Showing 25 of 490 online advertising agencies based in Greece

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Online advertising agencies based in Greece at a glance

As of Sep 5, 2026

1-10Median size (employees)

AthensLargest hub · 130 HQs

79Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

392

11-50

51-200

201-500

501-1,000

1,001-5,000

Verified emails by last verification

0–30

497

31–60

61–90

90–180

180+

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 online advertising agencies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Greece whose own description of what they do matches “online advertising agencies”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among online advertising 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 an evidence 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, 536 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 5, 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.

Online advertising agencies by metro

Online advertising agencies in Athens130
Online advertising agencies in Thessaloniki28

Frequently asked

How many online advertising agencies are there based in Greece?

RevenueBase identified 490 online advertising 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?

Baas Digital, headquartered in Greece, tops this list with the largest team on record.

Which city has the most online advertising agencies?

Athens leads with 130 headquartered companies, followed by Thessaloniki (28) and Attica (5).

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 536 verified decision-maker contacts tracked across these 490 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 5, 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 SmartSearch, 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.