Company lists · Data refreshed September 2026

Top 25 International tax consulting firms based in Greece

Name: International tax consulting firms based in Greece
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 169 companies tracked

RevenueBase identified 169 international tax consulting firms headquartered in Greece as of September 2026 and tracks 2,341 professional contacts across them, including 504 with verified work emails. Athens is the largest hub.

This list covers international tax 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 28, 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 28, 2026 86% judged on-target in blind review

169Companies

2,341Contacts tracked

504Verified emails

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The 25 largest international tax consulting firms based in Greece

Ranked by team size

Top 25 of 169 international tax consulting firms based in Greece, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to international tax 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Grant Thornton Greece	Partial evidence	Athens, GreeceHQ checked Sep 28, 2026	1,001-5,000	1,313 contacts →
	Partial evidence “Grant Thornton SA provides personalised assurance, tax and advisory services to listed entities, privately-held businesses and public sector businesses.” Source: RevenueBase Database · checked Sep 28, 2026
2	Fovera Prostasia S.A	Partial evidence	Athens, GreeceHQ checked Sep 28, 2026	51-200	116 contacts →
	Partial evidence “Accounting - Taxation - Business Consulting OUR COMPANY Following many years of activity, Fovera Prostasia S.A.” Source: RevenueBase Database · checked Sep 28, 2026
3	Orthologismos SA	Indirect evidence	Thessaloniki, GreeceHQ checked Sep 28, 2026	51-200	61 contacts →
	Indirect evidence “Orthologismos S.A.” Source: RevenueBase Database · checked Sep 28, 2026
4	Nepa Economic Consulting S.A	Strong evidence	Athens, GreeceHQ checked Sep 28, 2026	51-200	39 contacts →
	Strong evidence “NEPA Economic Consulting, led by CEO Konstantinos Patiris, is a premier financial advisory firm specializing in integrated Tax, Accounting and Business Consulting.” Source: RevenueBase Database · checked Sep 28, 2026
5	Atlas Consulting	Strong evidence	Pylaia, GreeceHQ checked Sep 28, 2026	11-50	30 contacts →
	Strong evidence “is a Tax, Accounting, and Consulting Company that has its origin in Greece and is expanded internationally.” Source: RevenueBase Database · checked Sep 28, 2026
6	TGS Hellas	Strong evidence	Maroussi, GreeceHQ checked Sep 28, 2026	11-50	29 contacts →
	Strong evidence “tgs (Hellas) is the brand under which experienced professionals collaborate to provide integrated business services, audit, consulting, financial advisory, tax, compliance, legal…” Source: RevenueBase Database · checked Sep 28, 2026
7	Interlog SA	Partial evidence	Athens, GreeceHQ checked Sep 28, 2026	11-50	21 contacts →
	Partial evidence “INTERLOG SA provides a range of high-quality services, including accounting, tax as well as advisory services to individuals, corporates and other organisations.” Source: RevenueBase Database · checked Sep 28, 2026
8	Dinamiki LTD	Partial evidence	Melissia, GreeceHQ checked Sep 28, 2026	11-50	19 contacts →
	Partial evidence “DINAMIKI Ltd is a specialized tax boutique established in May 1990 in Athens.” Source: RevenueBase Database · checked Sep 28, 2026
9	Prooptiki SA	Partial evidence	Athens, GreeceHQ checked Sep 28, 2026	11-50	18 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026
10	Ambe Accounting Management & Business Enhancement	Partial evidence	Athens, GreeceHQ checked Sep 28, 2026	11-50	17 contacts →
	Partial evidence “AMBE Accounting Management & Business Enhancement has, since founding, been active in the area of tax, accounting and consultancy services aiming at the holistic support of…” Source: RevenueBase Database · checked Sep 28, 2026
11	Taxstore Consulting	Strong evidence	Cholargos, GreeceHQ checked Sep 28, 2026	11-50	15 contacts →
	Strong evidence “Corporate Consulting Services/Accounting Outsourced Services/Payroll Outsourced Services/Tax Planning” Source: RevenueBase Database · checked Sep 28, 2026
12	Seretis Accounting	Partial evidence	Athens, GreeceHQ checked Sep 28, 2026	11-50	13 contacts →
	Partial evidence “Seretis Accounting has built a strong reputation as a trusted business and tax consultant over the past 20 years.” Source: RevenueBase Database · checked Sep 28, 2026
13	SBS Financial Consultants SA	Indirect evidence	Athens, GreeceHQ checked Sep 28, 2026	11-50	12 contacts →
	Indirect evidence “With over 38 years of experience and continuous involvement in the European Business World, we are capable of providing Integrated Financial Services to Businesses and Greeks…” Source: RevenueBase Database · checked Sep 28, 2026
14	KM Services Accounting & Consulting	Indirect evidence	Nea Smirni, GreeceHQ checked Sep 28, 2026	1-10	12 contacts →
	Indirect evidence “Η εταιρία μας στελεχωμένη με κατηρτισμένους συνεργάτες προσφέρει ολοκληρωμένες λογιστικές, φοροτεχνικές και συμβουλευτικές υπηρεσίες σε κάθε ενδιαφερόμενο φυσικό ή νομικό πρόσωπο.” Source: RevenueBase Database · checked Sep 28, 2026
15	FK Consulting Services	Strong evidence	Athens, GreeceHQ checked Sep 28, 2026	11-50	9 contacts →
	Strong evidence “FK Consulting Services Ltd is a dynamic firm providing accounting, tax and consulting services by experienced and accomplished professionals.” Source: RevenueBase Database · checked Sep 28, 2026
16	TLS TAX Advisory	Strong evidence	Athens, GreeceHQ checked Sep 28, 2026	1-10	8 contacts →
	Strong evidence “TLS Tax Advisory (Tax & Law Solutions)-founded in 1996 as a sole proprietorship and transformed to a legal entity in 2020- aims to provide tax/accounting consulting and financial…” Source: RevenueBase Database · checked Sep 28, 2026
17	Serefidis And Partners	Strong evidence	Thessaloniki, GreeceHQ checked Sep 28, 2026	11-50	8 contacts →
	Strong evidence “SEREFIDIS & PARTNERS is a firm providing tax and financial consulting services.” Source: RevenueBase Database · checked Sep 28, 2026
18	Εντεχνοσ Λογιστικη	Indirect evidence	Dafni, GreeceHQ checked Sep 28, 2026	11-50	7 contacts →
	Indirect evidence “Στο ευμετάβλητο επιχειρηματικό και οικονομικό περιβάλλον που ζούμε, η ΕΝΤΕΧΝΟΣ ΛΟΓΙΣΤΙΚΗ Α.Ε.” Source: RevenueBase Database · checked Sep 28, 2026
19	Delidakis & Associates P.C	Indirect evidence	Athens, GreeceHQ checked Sep 28, 2026	11-50	7 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
20	Kraniotis Konstantinos	Partial evidence	Kalamata, GreeceHQ checked Sep 28, 2026	11-50	7 contacts →
	Partial evidence “P&K Kraniotis & Partners provides cosulting, tax and advisory services to all types of entities, privately-held businesses and public sector businesses.” Source: RevenueBase Database · checked Sep 28, 2026
21	Metron TAX S.A	Indirect evidence	Thessaloniki, GreeceHQ checked Sep 28, 2026	1-10	6 contacts →
	Indirect evidence “Το όραμά μας είναι η παροχή άριστης ποιότητας υπηρεσιών φοροτεχνικής και λογιστικής κάλυψης των επιχειρήσεων, που επιτυγχάνεται με την στενή συνεργασία και προσωπική επαφή με την…” Source: RevenueBase Database · checked Sep 28, 2026
22	MGI Sofakis Partners	Strong evidence	Haidari, GreeceHQ checked Sep 28, 2026	11-50	6 contacts →
	Strong evidence “MGI Sofakis Partners, based in Athens, provides professional tax, accounting, payroll, and consulting services to Greek and International companies.” Source: RevenueBase Database · checked Sep 28, 2026
23	Samaras	Indirect evidence	Νέα Φιλαδέλφεια, GreeceHQ checked Sep 28, 2026	11-50	6 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026
24	Γραφειο Καραμπελα Taxnet.Gr	Indirect evidence	Αθήνα, GreeceHQ checked Sep 28, 2026	11-50	6 contacts →
	Indirect evidence “Τα τελευταία 40 χρόνια, παρέχουμε φορολογικές, λογιστικές και συμβουλευτικές υπηρεσίες συνδυάζοντας την επαγγελματική προσέγγιση με την διαπροσωπική επαφή και αναγνωρίζοντας την…” Source: RevenueBase Database · checked Sep 28, 2026
25	G.G.S.	Indirect evidence	Thessaloniki, GreeceHQ checked Sep 28, 2026	11-50	6 contacts →
	Indirect evidence “Based in Thessaloniki, the accounting office Georgios N.” Source: RevenueBase Database · checked Sep 28, 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: international tax consulting firms. 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 international tax consulting firms.
Partial evidence: Its own public description names part of international tax consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name international tax consulting firms. 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 169 international tax consulting firms based in Greece

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International tax consulting firms based in Greece at a glance

As of Sep 28, 2026

21.5%Verified-email coverage

13.9Average contacts per company

1-10Median size (employees)

30.2%Largest-city concentration · Athens

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

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 169 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 international tax 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 “international tax 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 international tax 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 international tax 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, 504 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 28, 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.

International tax consulting firms by metro

International tax consulting firms in Athens51

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 international tax 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 international tax consulting firms are there based in Greece?

RevenueBase identified 169 international tax 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?

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

Which city has the most international tax consulting firms?

Athens leads with 51 headquartered companies, followed by Thessaloniki (8) 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 504 verified decision-maker contacts tracked across these 169 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 28, 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.