Company lists · Data refreshed September 2026

Top 25 Guerrilla marketing agencies based in Greece

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

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 69 companies tracked

RevenueBase identified 69 guerrilla marketing agencies headquartered in Greece as of September 2026 and tracks 922 professional contacts across them, including 169 with verified work emails and 31 with mobile numbers. Athens is the largest hub.

This list covers guerrilla marketing 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 30, 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 30, 2026 86% judged on-target in blind review

69Companies

922Contacts tracked

169Verified emails

31Mobile numbers

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The 25 largest guerrilla marketing agencies based in Greece

Ranked by team size

Top 25 of 69 guerrilla marketing agencies based in Greece, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to guerrilla marketing 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Ogilvy Greece	Indirect evidence	Gerakas, GreeceHQ checked Sep 30, 2026	201-500	276 contacts →
	Indirect evidence “Ogilvy Greece is a group of 400 professionals passionate about advertising, public relations, technology and social platforms.” Source: RevenueBase Database · checked Sep 30, 2026
2	MSPS	Partial evidence	Alimos, GreeceHQ checked Sep 30, 2026	201-500	180 contacts →
	Partial 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 30, 2026
3	Chapter Five S.A	Partial evidence	Athens, GreeceHQ checked Sep 30, 2026	51-200	81 contacts →
	Partial evidence “Chapter Five Experiential Marketing Agency We are in the Brand Experience territory since 2001 offering services such as field promotion, experiential sampling, merchandising…” Source: RevenueBase Database · checked Sep 30, 2026
4	Epaphy	Partial evidence	Athens, GreeceHQ checked Sep 30, 2026	11-50	35 contacts →
	Partial evidence “Unlock the potential of below the line marketing with the elements of our nature Promotion, Construction, Innovation, and Sustainability.” Source: RevenueBase Database · checked Sep 30, 2026
5	White Rhino	Indirect evidence	Gerakas, GreeceHQ checked Sep 30, 2026	11-50	30 contacts →
	Indirect evidence “Brands are living species.” Source: RevenueBase Database · checked Sep 30, 2026
6	BRAVE	Indirect evidence	Khalándrion, GreeceHQ checked Sep 30, 2026	11-50	29 contacts →
	Indirect evidence “We are Brave, an independent award winning Creative & Advertising agency based in Athens, Greece.” Source: RevenueBase Database · checked Sep 30, 2026
7	AMUSE	Partial evidence	Khalándrion, GreeceHQ checked Sep 30, 2026	11-50	26 contacts →
	Partial evidence “Amuse is a leading experiential marketing agency specializing in delivering projects that are as unique as our clients.” Source: RevenueBase Database · checked Sep 30, 2026
8	Blue Rocket	Partial evidence	Athens, GreeceHQ checked Sep 30, 2026	11-50	16 contacts →
	Partial evidence “At Blue Rocket, we understand that great content isn’t a luxury, it’s a strategic necessity that drives real results.🫰 Content marketing generates over three times as many leads…” Source: RevenueBase Database · checked Sep 30, 2026
9	Olive Creative Marketing House	Partial evidence	Thessaloniki, GreeceHQ checked Sep 30, 2026	1-10	14 contacts →
	Partial evidence “Growing Digital Experiences - Olive is a Creative Marketing House based in the center of Thessaloniki in Greece.” Source: RevenueBase Database · checked Sep 30, 2026
10	White AD & Purple Events	Indirect evidence	Athens, GreeceHQ checked Sep 30, 2026	1-10	13 contacts →
	Indirect evidence “WHITE Team We are a flexible and effective agency striving for creativity.” Source: RevenueBase Database · checked Sep 30, 2026
11	DAY ONE Growth Igniters	Partial evidence	Athens, GreeceHQ checked Sep 30, 2026	11-50	11 contacts →
	Partial evidence “DAY ONE Growth Igniters is a hybrid marketing and growth agency designed for brands ready to accelerate their impact from Day One.” Source: RevenueBase Database · checked Sep 30, 2026
12	Libero S&t Events Management & Sports Marketing	Partial evidence	Kallithea, GreeceHQ checked Sep 30, 2026	11-50	9 contacts →
	Partial evidence “Libero S&T: We Produce Emotions For over two decades, Libero S&T has been redefining sports marketing, event management, and brand activations in Greece.” Source: RevenueBase Database · checked Sep 30, 2026
13	Producta Direct	Indirect evidence	Marousi, GreeceHQ checked Sep 30, 2026	11-50	7 contacts →
	Indirect evidence “Από το 1971 ως Producta Advertising και από το 1992 έως σήμερα σαν Producta direct, συνεχίζουμε να δημιουργούμε νέους δρόμους στην επικοινωνία.” Source: RevenueBase Database · checked Sep 30, 2026
14	ART Nova	Indirect evidence	Athens, GreeceHQ checked Sep 30, 2026	11-50	7 contacts →
	Indirect evidence “We are a Brand Communication Agency.” Source: RevenueBase Database · checked Sep 30, 2026
15	Opus Integrated Communication	Partial evidence	Athens, GreeceHQ checked Sep 30, 2026	1-10	6 contacts →
	Partial evidence “In OPUS Integrated Communication we plan, organize and implement the strategic communication and marketing for companies and institutions of premium products & services.” Source: RevenueBase Database · checked Sep 30, 2026
16	Newton Creative Agency	Indirect evidence	Chalandri, GreeceHQ checked Sep 30, 2026	1-10	4 contacts →
	Indirect evidence “In science, Newton is a unit of force.” Source: RevenueBase Database · checked Sep 30, 2026
17	Avanttales	Partial evidence	Neo Psychiko, GreeceHQ checked Sep 30, 2026	1-10	4 contacts →
	Partial evidence “In Avant Tales, we focus exclusively on corporate and marketing events, allowing us to excel in this niche.” Source: RevenueBase Database · checked Sep 30, 2026
18	REACH	Indirect evidence	Athens, GreeceHQ checked Sep 30, 2026	1-10	4 contacts →
	Indirect evidence “Reach is a creative agency which designs campaign solutions that authentically interest the audiences a brand needs to address.” Source: RevenueBase Database · checked Sep 30, 2026
19	Good Omen ADM	Indirect evidence	Thessaloniki, GreeceHQ checked Sep 30, 2026	1-10	3 contacts →
	Indirect evidence “Η good OMEN είναι ένα νέο δυνατό και ευέλικτο σχήμα στο χώρο της διαφήμισης, ένα δημιουργικό γραφείο, με νέες ιδέες, άμεσες προτάσεις επικοινωνίας και θετική προσέγγιση.” Source: RevenueBase Database · checked Sep 30, 2026
20	Three Dots	Indirect evidence	Khalándrion, GreeceHQ checked Sep 30, 2026	1-10	3 contacts →
	Indirect evidence “Three Dots \| Creative Agency At Three Dots, we believe that every brand has a story worth telling-and we're here to make sure it's told right.” Source: RevenueBase Database · checked Sep 30, 2026
21	Prideworks	Indirect evidence	Athens, GreeceHQ checked Sep 30, 2026	1-10	2 contacts →
	Indirect evidence “We believe that a sense of pride works wonders.” Source: RevenueBase Database · checked Sep 30, 2026
22	Fourletter Greece	Indirect evidence	Agios Dimitrios, GreeceHQ checked Sep 30, 2026	1-10	2 contacts →
	Indirect evidence “Fourletter is an independent 360° creative force, born as a brand experience agency and grown into a partner for bold, strategy-led communication.” Source: RevenueBase Database · checked Sep 30, 2026
23	Fun-Is Marketing	Indirect evidence	Rhodes Island, GreeceHQ checked Sep 30, 2026	1-10	1 contacts →
	Indirect evidence “A new and fresh advertising and promotion agency based in Rhodes Island Greece.” Source: RevenueBase Database · checked Sep 30, 2026
24	Pinpoint Brand Engagement Agency	Indirect evidence	Athens, GreeceHQ checked Sep 30, 2026	1-10	1 contacts →
	Indirect evidence “Pinpoint is a fresh, fast and innovative brand engagement agency.” Source: RevenueBase Database · checked Sep 30, 2026
25	BIG Horror Athens	Indirect evidence	Athens, GreeceHQ checked Sep 30, 2026	1-10	1 contacts →
	Indirect evidence “Thriving at the intersection of horror & delight.” Source: RevenueBase Database · checked Sep 30, 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: guerrilla marketing agencies. 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 guerrilla marketing agencies.
Partial evidence: Its own public description names part of guerrilla marketing agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name guerrilla marketing agencies. 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 guerrilla marketing agencies based in Greece

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Guerrilla marketing agencies based in Greece at a glance

As of Sep 30, 2026

18.3%Verified-email coverage

3.4%Mobile-number coverage

13.4Average contacts per company

1-10Median size (employees)

36.2%Largest-city concentration · Athens

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 33.0d

90–30

3231–60

161–90

090–180

0180+

Company record updated

Median 83.0d

00–30

3531–60

3361–90

3790–180

5180+

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 guerrilla marketing 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 “guerrilla marketing 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 guerrilla marketing 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 guerrilla marketing 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, 169 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 30, 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 guerrilla marketing 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 guerrilla marketing agencies are there based in Greece?

RevenueBase identified 69 guerrilla marketing 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?

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

Which city has the most guerrilla marketing agencies?

Athens leads with 25 headquartered companies, followed by Thessaloniki (4) and Attica (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 169 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 30, 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.