Company lists · Data refreshed October 2026

Top 25 Accounting firms for international nonprofits based in Greece

RevenueBase identified 114 company matches for accounting firms for international nonprofits associated with Greece as of October 2026 and tracks 1,941 professional contacts across them, including 388 with verified work emails. Athens is the largest hub.

This list covers company matches for accounting firms for international nonprofits associated with Greece, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 1, 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 RevenueBase SmartSearch · Exact Recorded Oct 1, 2026 How this list was built
114Companies
1,941Contacts tracked
388Verified emails
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The 25 largest accounting firms for international nonprofits based in Greece

Ranked by team size
Top 25 of 114 company matches for accounting firms for international nonprofits based in Greece, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 1, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchAthens, GreeceHQ recorded Oct 1, 20261,001-5,0001,313 contacts →

Exact match

“Grant Thornton SA provides personalised assurance, tax and advisory services to listed entities, privately-held businesses and public sector businesses.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
2Exact matchAthens, GreeceHQ recorded Oct 1, 202651-20030 contacts →

Exact match

“Kreston Greece, formerly known as Hellenic Auditing S.A, is a network of certified auditors accountants, tax, financial and business advisors with significant specialized…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
3Exact matchPylaia, GreeceHQ recorded Oct 1, 202611-5030 contacts →

Exact match

“is a Tax, Accounting, and Consulting Company that has its origin in Greece and is expanded internationally.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
4Exact matchKallithea, GreeceHQ recorded Oct 1, 202611-5028 contacts →

Exact match

“Στην Computax, είμαστε αφοσιωμένοι στην παροχή εξαιρετικών λογιστικών υπηρεσιών που ενδυναμώνουν τις επιχειρήσεις να επιτύχουν τους οικονομικούς τους στόχους.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
5Exact matchAthens, GreeceHQ recorded Oct 1, 202611-5021 contacts →

Exact match

“Actnet Tax Solutions is a leading, independent firm of certified accountants.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
6Exact matchKallithea, GreeceHQ recorded Oct 1, 202611-5018 contacts →

Exact match

“C&A was established in Athens in 2015.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
7Exact matchAthens, GreeceHQ recorded Oct 1, 202611-5018 contacts →

Exact match

“Prooptiki was established as an accounting firm back in 1984; today, it is one of the most successful companies in the economic sector, providing consultation on accounting-tax…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
8Exact matchAthens, GreeceHQ recorded Oct 1, 202611-5016 contacts →

Exact match

“NEXIA EUROSTATUS CERTIFIED AUDITORS S.A, was established in by a team of experienced and qualified professionals, members of the Greek Institute of Certified Public Accountants of…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
9Exact matchIrakleio, GreeceHQ recorded Oct 1, 202611-5016 contacts →

Exact match

“Orion is a modern company of chartered accountants, with structures adapted to the requirements of today.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
10Exact matchGreeceHQ recorded Oct 1, 202611-5012 contacts →

Exact match

“ARGO AUDIT is an auditing, tax and accounting firm, member of S.O.E.L.(The Institute of Certified Public Accountants of Greece) with its structures to meet the high demands of a…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
11Exact matchChaidari, GreeceHQ recorded Oct 1, 202611-5011 contacts →

Exact match

“Λογιστής Λογιστική εταιρεία Σύμβουλος επιχειρήσεων Εφοριακός Αποτιμητής Φοροτεχνικός Chartered accountant Χρηματοποικονομικός σύμβουλος Γραφείο διεκπεραιώσης φορολογικών δηλώσεων…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
12Exact matchAthens, GreeceHQ recorded Oct 1, 202611-5010 contacts →

Exact match

“TMS Certified Public Accountants S.A is an independent firm established in Greece, providing a broad range of audit & assurance, tax, business advisory and accounting services.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
13Exact matchAthens, GreeceHQ recorded Oct 1, 202611-5010 contacts →

Exact match

“OLYMPIA AUDITORS S.A.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
14Exact matchKifisia, GreeceHQ recorded Oct 1, 202611-5010 contacts →

Exact match

“DFK PD AUDIT S.A.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
15Exact matchAthens, GreeceHQ recorded Oct 1, 202611-509 contacts →

Exact match

“CPA Kudos Greece is a Greek-owned audit firm offering a full range of services in the areas of auditing, accounting, taxation, and advisory.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
16Exact matchElliniko - Argyroupoli, GreeceHQ recorded Oct 1, 202611-509 contacts →

Exact match

“Ef Audit A.E.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
17Exact matchNéa Ionía, GreeceHQ recorded Oct 1, 20261-108 contacts →

Exact match

“Founded in 2019, with headquarters in Larissa and offices in Athens and Thessaloniki, FiveB is a growing firm of chartered accountants offering bespoke audit, tax, advisory, and…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
18Exact matchAthens, GreeceHQ recorded Oct 1, 202611-508 contacts →

Exact match

“Taxation, Audit & Accounting Business Consultants Firm PSARIANOS S.A.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
19Exact matchDafni, GreeceHQ recorded Oct 1, 202611-507 contacts →

Exact match

“Στο ευμετάβλητο επιχειρηματικό και οικονομικό περιβάλλον που ζούμε, η ΕΝΤΕΧΝΟΣ ΛΟΓΙΣΤΙΚΗ Α.Ε.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
20Exact matchΝέα Φιλαδέλφεια, GreeceHQ recorded Oct 1, 202611-506 contacts →

Exact match

“Από το 2009 το λογιστικό γραφείο «ΧΑΡΑΛΑΜΠΟΣ ΣΑΜΑΡΑΣ ΙΚΕ» μαζί με το κατάλληλο ανθρώπινο δυναμικό εξυπηρετεί πλήθος επιχειρήσεων με κύριο μέλημα την εκπλήρωση των λογιστικών και…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
21Exact matchMaroussi, GreeceHQ recorded Oct 1, 20261-106 contacts →

Exact match

“Lysis founded on 2006.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
22Exact matchMarousi, GreeceHQ recorded Oct 1, 202611-505 contacts →

Exact match

“KMC established by a group of Certified Public Accountants as a Societe Anonyme.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
23Exact matchNea Ionia, GreeceHQ recorded Oct 1, 20261-104 contacts →

Exact match

“Here at CBS - Consolidated Business Solutions our highly skilled and experienced staff and colleagues through the use of technology and applying the highest standards of service…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
24Exact matchAthens, GreeceHQ recorded Oct 1, 202611-504 contacts →

Exact match

“Delta Partners Certified Public Accountants S.A.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
25Exact matchAthens, GreeceHQ recorded Oct 1, 202611-504 contacts →

Exact match

“Η ACNT Accounting Services είναι ένα σύγχρονο λογιστικό και συμβουλευτικό γραφείο που βοηθά τις επιχειρήσεις να πάνε πέρα από τη συμμόρφωση.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase

Showing 25 of 114 accounting firms for international nonprofits based in Greece

See the full list, filter by size, metro and specialty, and access 388 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Accounting firms for international nonprofits based in Greece at a glance

As of Oct 1, 2026
20.0%Verified-email coverage
17.0Average contacts per company
1-10Median size (employees)
28.1%Largest-city concentration · Athens
Oct 1, 2026Page data refreshed

Companies by employee count

1-10
58
11-50
50
51-200
4
201-500
1
1,001-5,000
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 114 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with Greece whose business descriptions match “accounting firms for international nonprofits” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 388 professional contacts with verified work emails across the full matched dataset. 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 October 1, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “accounting firms for international nonprofits”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many accounting firms for international nonprofits are there based in Greece?

RevenueBase identified 114 company matches for accounting firms for international nonprofits associated with Greece as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Grant Thornton Greece tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most accounting firms for international nonprofits?

Athens leads with 32 company records, followed by Greece (2) and Kallithea (2).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 388 professional contacts with verified work emails tracked across these 114 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 1, 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.