Company lists · Data refreshed September 2026

Top 25 Advocacy organizations consulting firms based in Greece

RevenueBase identified 85 advocacy organizations consulting firms headquartered in Greece as of September 2026 and tracks 797 professional contacts across them, including 249 with verified work emails. Athens is the largest hub.

This list covers advocacy organizations consulting firms 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 27, 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 27, 2026 86% judged on-target in blind review
85Companies
797Contacts tracked
249Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest advocacy organizations consulting firms based in Greece

Ranked by team size
Top 25 of 85 advocacy organizations consulting firms based in Greece, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to advocacy organizations consulting firms: 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 evidenceAthens, GreeceHQ checked Sep 27, 202651-200161 contacts →

Indirect evidence

“We are V+O Group.”

Source: RevenueBase Database · checked Sep 27, 2026
2Indirect evidenceAthens, GreeceHQ checked Sep 27, 202651-20065 contacts →

Indirect evidence

“NOISIS S.A.”

Source: RevenueBase Database · checked Sep 27, 2026
3Indirect evidenceAthens, GreeceHQ checked Sep 27, 202611-5047 contacts →

Indirect evidence

“S.G.”

Source: RevenueBase Database · checked Sep 27, 2026
4Partial evidenceAthens, GreeceHQ checked Sep 27, 202611-5029 contacts →

Partial evidence

“Our team is aiming to find the most suitable funding project for your company and to provide consulting services.”

Source: RevenueBase Database · checked Sep 27, 2026
5Indirect evidenceAthens - Kifisia, GreeceHQ checked Sep 27, 202651-20027 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 27, 2026
6Partial evidenceGreeceHQ checked Sep 27, 202611-5027 contacts →

Partial evidence

“Η εταιρεία Break Even Consulting ειδικεύεται στην παροχή συμβουλευτικών και μελετητικών υπηρεσιών υψηλής ποιότητας σε επιχειρήσεις, οργανισμούς και σε φορείς του δημοσίου και…”

Source: RevenueBase Database · checked Sep 27, 2026
7Indirect evidenceΑθήνα, GreeceHQ checked Sep 27, 202611-5023 contacts →

Indirect evidence

“Socialdoo is a team of professionals with extensive experience in the private and public sectors in Greece, specializing in developing successful public affairs, corporate, and…”

Source: RevenueBase Database · checked Sep 27, 2026
8Partial evidenceAthens, GreeceHQ checked Sep 27, 202611-5017 contacts →

Partial evidence

“CMT Prooptiki Ltd is a management consulting firm with offices in Athens, which specializes in Health and Social Policy, Local and Regional Development, Social Entrepreneurship…”

Source: RevenueBase Database · checked Sep 27, 2026
9Indirect evidenceThessaloniki, GreeceHQ checked Sep 27, 202611-5016 contacts →

Indirect evidence

“Η BLUE VALUE είναι μία σύγχρονη εταιρεία παροχής συμβουλευτικών υπηρεσιών, υπηρεσιών υποστήριξης και λειτουργίας φορέων και υπηρεσιών εκπαίδευσης.”

Source: RevenueBase Database · checked Sep 27, 2026
10Partial evidenceAthens, GreeceHQ checked Sep 27, 20261-1010 contacts →

Partial evidence

“The Sympraxis Team of experts provides strategic consulting, fundraising, and project management services.”

Source: RevenueBase Database · checked Sep 27, 2026
11Indirect evidenceChalandri, GreeceHQ checked Sep 27, 202611-509 contacts →

Indirect evidence

“We are a team of talented professionals of diverse backgrounds, sharing a common purpose, to create and deliver unique stories about brands, individuals and organizations.”

Source: RevenueBase Database · checked Sep 27, 2026
12Indirect evidenceΜαρούσι, GreeceHQ checked Sep 27, 20261-109 contacts →

Indirect evidence

“H HBI ως εταιρεία παροχής υπηρεσιών αποτελεί υπόδειγμα στο χώρο της συμβουλευτικής συνδυάζοντας απόλυτα τα οφέλη μιας μικρομεσαίας επιχείρησης με την πολυετή εμπειρία που…”

Source: RevenueBase Database · checked Sep 27, 2026
13Indirect evidenceChalandri, GreeceHQ checked Sep 27, 2026201-5007 contacts →

Indirect evidence

“Our company was founded in 1995, in order to provide companies and organizations of both the private and public sector with specialised services of a high standard.”

Source: RevenueBase Database · checked Sep 27, 2026
14Indirect evidenceChalandri, GreeceHQ checked Sep 27, 20261-106 contacts →

Indirect evidence

“We believe that time is the most valuable commodity one possesses.”

Source: RevenueBase Database · checked Sep 27, 2026
15Partial evidencePeristéri, GreeceHQ checked Sep 27, 202611-506 contacts →

Partial evidence

“Η εταιρία ΠΡΟΟΨΙΣ ΣΥΜΒΟΥΛΟΙ ΕΠΙΧΕΙΡΗΣΕΩΝ ΑΕ (δτ Proopsis Consulting SA), ιδρύθηκε στην Αθήνα το 2009 από έμπειρα στελέχη με μεγάλη επαγγελματική εξειδίκευση και σταδιοδρομία με…”

Source: RevenueBase Database · checked Sep 27, 2026
16Indirect evidenceThessaloniki, GreeceHQ checked Sep 27, 20261-106 contacts →

Indirect evidence

“Σύμβουλοι Επιχειρήσεων”

Source: RevenueBase Database · checked Sep 27, 2026
17Indirect evidenceAthens, GreeceHQ checked Sep 27, 20261-105 contacts →

Indirect evidence

“Effectus is a partner-owned, government relations & strategic communications firm, established in 2013 as Rollerdeck Associates.”

Source: RevenueBase Database · checked Sep 27, 2026
18Indirect evidenceAthens, GreeceHQ checked Sep 27, 20261-105 contacts →

Indirect evidence

“Ethos Lab PC is a consultancy startup dedicated to providing research-based policy solutions for public and private sectors globally.”

Source: RevenueBase Database · checked Sep 27, 2026
19Indirect evidenceKallithea - Athens, GreeceHQ checked Sep 27, 202611-505 contacts →

Indirect evidence

“MENTORING S.A.”

Source: RevenueBase Database · checked Sep 27, 2026
20Partial evidenceGlyfada, GreeceHQ checked Sep 27, 20261-104 contacts →

Partial evidence

“G&D is a boutique consulting company providing public and private sector clients with solutions for “Policy and Regulation”, “Strategy and Business”, “Monitoring and Evaluation”…”

Source: RevenueBase Database · checked Sep 27, 2026
21Partial evidenceGreeceHQ checked Sep 27, 202611-503 contacts →

Partial evidence

“IDEA is a boutique consulting firm based in Athens, specializing in business growth & funding.”

Source: RevenueBase Database · checked Sep 27, 2026
22Partial evidenceAthens, GreeceHQ checked Sep 27, 20261-103 contacts →

Partial evidence

“Τα τμήματα της ILF consulting διαχωρίζονται σε 3 κατηγορίες : Ιδιώτες, « Ανθρωποκεντρικές υπηρεσίες » Επιχειρηματίες, « Επιχειρησιακές υπηρεσίες » Δημόσιοι Οργανισμοί και Φορείς «…”

Source: RevenueBase Database · checked Sep 27, 2026
23Indirect evidenceAthens, GreeceHQ checked Sep 27, 20261-103 contacts →

Indirect evidence

“We are an agile team of professionals, with more than 20 years of experience in strategic communication and shaping policy outcomes for companies, associations, non-profit…”

Source: RevenueBase Database · checked Sep 27, 2026
24Indirect evidenceZákynthos, GreeceHQ checked Sep 27, 202611-502 contacts →

Indirect evidence

“Paraschis & Partners office was established in 2010 in order to provide comprehensive financial services as well as development advice to both businesses and individuals.”

Source: RevenueBase Database · checked Sep 27, 2026
25Indirect evidenceChania, GreeceHQ checked Sep 27, 20261-102 contacts →

Indirect evidence

“The Company was founded in 2013 with the aim of providing specialized services to businesses and organizations in the Private and Public Sector.”

Source: RevenueBase Database · checked Sep 27, 2026

Showing 25 of 85 advocacy organizations consulting firms based in Greece

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 249 reachable decision-makers.

Free signup · no credit card

View the full list →

Advocacy organizations consulting firms based in Greece at a glance

As of Sep 27, 2026
31.2%Verified-email coverage
9.4Average contacts per company
1-10Median size (employees)
29.4%Largest-city concentration · Athens
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
55
11-50
26
51-200
3
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 85 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 advocacy organizations consulting firms, 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 “advocacy organizations consulting firms”. 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 advocacy organizations consulting firms), 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 advocacy organizations consulting firms, 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, 249 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 27, 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 advocacy organizations consulting firms, 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 advocacy organizations consulting firms are there based in Greece?

RevenueBase identified 85 advocacy organizations consulting firms 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?

V O Group, headquartered in Greece, tops this list with the largest team on record.

Which city has the most advocacy organizations consulting firms?

Athens leads with 25 headquartered companies, followed by Marousi (3) and Chalandri (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 249 verified decision-maker contacts tracked across these 85 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 27, 2026.

Ready to reach these companies? Verified emails and direct dials for all 85 advocacy organizations consulting firms based in Greece. Start with a free account, no credit card.

Download this list →

Related 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.