Company lists · Data refreshed September 2026

Top 25 Tax services accounting firms based in Greece

Name: Tax services accounting firms based in Greece
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 6, 2026 418 companies tracked

RevenueBase identified 418 tax services accounting firms headquartered in Greece as of September 2026 and tracks 4,232 professional contacts across them, including 1,082 with verified work emails and 69 with mobile numbers. Athens is the largest hub.

This list covers tax services accounting 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 6, 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 6, 2026 86% judged on-target in blind review

418Companies

4,232Contacts tracked

1,082Verified emails

69Mobile numbers

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The 25 largest tax services accounting firms based in Greece

Ranked by team size

Top 25 of 418 tax services accounting firms based in Greece, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to tax services accounting 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 6, 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 6, 2026
2	Kpmg Greece	Strong evidence	Athens, GreeceHQ checked Sep 6, 2026	501-1,000	755 contacts →
	Strong evidence “Operating in Greece for more than 50 years KPMG offers through 4 entities, audit, tax, accounting & payroll, legal and advisory services to domestic and international businesses…” Source: RevenueBase Database · checked Sep 6, 2026
3	Fovera Prostasia S.A	Partial evidence	Athens, GreeceHQ checked Sep 6, 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 6, 2026
4	Orthologismos SA	Indirect evidence	Thessaloniki, GreeceHQ checked Sep 6, 2026	51-200	61 contacts →
	Indirect evidence “Orthologismos S.A.” Source: RevenueBase Database · checked Sep 6, 2026
5	Nepa Economic Consulting S.A	Strong evidence	Athens, GreeceHQ checked Sep 6, 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 6, 2026
6	Atlas Consulting	Strong evidence	Pylaia, GreeceHQ checked Sep 6, 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 6, 2026
7	TGS Hellas	Partial evidence	Maroussi, GreeceHQ checked Sep 6, 2026	11-50	29 contacts →
	Partial 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 6, 2026
8	Computax S.A	Indirect evidence	Kallithea, GreeceHQ checked Sep 6, 2026	11-50	28 contacts →
	Indirect evidence “Στην Computax, είμαστε αφοσιωμένοι στην παροχή εξαιρετικών λογιστικών υπηρεσιών που ενδυναμώνουν τις επιχειρήσεις να επιτύχουν τους οικονομικούς τους στόχους.” Source: RevenueBase Database · checked Sep 6, 2026
9	Kleopas Alliott Business Consultants SA	Partial evidence	Athens, GreeceHQ checked Sep 6, 2026	11-50	25 contacts →
	Partial evidence “Kleopas Alliott Business Consultants is an independent leading Accounting firm in Greece since 1990, with an innovative international orientation and a unique client focus service…” Source: RevenueBase Database · checked Sep 6, 2026
10	ATC Certified Public Accountants	Partial evidence	GreeceHQ checked Sep 6, 2026	11-50	25 contacts →
	Partial evidence “atc providing Audit, Tax and Advisory services.” Source: RevenueBase Database · checked Sep 6, 2026
11	Actnet TAX Solutions	Partial evidence	Athens, GreeceHQ checked Sep 6, 2026	11-50	21 contacts →
	Partial evidence “Actnet Tax Solutions is a leading, independent firm of certified accountants.” Source: RevenueBase Database · checked Sep 6, 2026
12	Interlog SA	Strong evidence	Athens, GreeceHQ checked Sep 6, 2026	11-50	21 contacts →
	Strong 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 6, 2026
13	Dinamiki LTD	Partial evidence	Melissia, GreeceHQ checked Sep 6, 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 6, 2026
14	C&a Certified Public Accountants	Indirect evidence	Kallithea, GreeceHQ checked Sep 6, 2026	11-50	18 contacts →
	Indirect evidence “C&A was established in Athens in 2015.” Source: RevenueBase Database · checked Sep 6, 2026
15	Prooptiki SA	Strong evidence	Athens, GreeceHQ checked Sep 6, 2026	11-50	18 contacts →
	Strong 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 6, 2026
16	Ambe Accounting Management & Business Enhancement	Strong evidence	Athens, GreeceHQ checked Sep 6, 2026	11-50	17 contacts →
	Strong 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 6, 2026
17	Orion Certified Auditors SA	Indirect evidence	Irakleio, GreeceHQ checked Sep 6, 2026	11-50	16 contacts →
	Indirect evidence “Orion is a modern company of chartered accountants, with structures adapted to the requirements of today.” Source: RevenueBase Database · checked Sep 6, 2026
18	Taxstore Consulting	Strong evidence	Cholargos, GreeceHQ checked Sep 6, 2026	11-50	15 contacts →
	Strong evidence “Corporate Consulting Services/Accounting Outsourced Services/Payroll Outsourced Services/Tax Planning” Source: RevenueBase Database · checked Sep 6, 2026
19	Seretis Accounting	Strong evidence	Athens, GreeceHQ checked Sep 6, 2026	11-50	13 contacts →
	Strong 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 6, 2026
20	Gnosi TAX & Accounting Experts	Strong evidence	Pylaia - Chortiatis, GreeceHQ checked Sep 6, 2026	11-50	12 contacts →
	Strong evidence “Gnosi Tax & Accounting Experts” is an accounting and tax services provider company for entities of any size and any field of the global economy.” Source: RevenueBase Database · checked Sep 6, 2026
21	JPA Audit Greece	Partial evidence	Ayia Paraskevi, GreeceHQ checked Sep 6, 2026	11-50	12 contacts →
	Partial evidence “JPA Audit Greece is a firm of Certified Public Accountants and Business Advisors, member of the Institute of Certified Public Accountants of Greece and the Accounting and Auditing…” Source: RevenueBase Database · checked Sep 6, 2026
22	KM Services Accounting & Consulting	Indirect evidence	Nea Smirni, GreeceHQ checked Sep 6, 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 6, 2026
23	Alpha Auditors	Partial evidence	Thessaloniki, GreeceHQ checked Sep 6, 2026	1-10	11 contacts →
	Partial evidence “Alpha Auditors" is a fast-growing company specializing in providing audit, consulting and tax services.” Source: RevenueBase Database · checked Sep 6, 2026
24	Spatiotis	Indirect evidence	Chaidari, GreeceHQ checked Sep 6, 2026	11-50	11 contacts →
	Indirect evidence “Λογιστής Λογιστική εταιρεία Σύμβουλος επιχειρήσεων Εφοριακός Αποτιμητής Φοροτεχνικός Chartered accountant Χρηματοποικονομικός σύμβουλος Γραφείο διεκπεραιώσης φορολογικών δηλώσεων…” Source: RevenueBase Database · checked Sep 6, 2026
25	ABC TAX Services	Partial evidence	Vrilissia, GreeceHQ checked Sep 6, 2026	1-10	11 contacts →
	Partial evidence “Η εταιρία ABC Tax Services ΙΚΕ συστάθηκε στις αρχές του 2015 με στόχο την παροχή σύγχρονων μηχανογραφημένων λογιστικών και φοροτεχνικών υπηρεσιών.” Source: RevenueBase Database · checked Sep 6, 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: tax services accounting 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 tax services accounting firms.
Partial evidence: Its own public description names part of tax services accounting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name tax services accounting 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 418 tax services accounting firms based in Greece

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Tax services accounting firms based in Greece at a glance

As of Sep 6, 2026

25.6%Verified-email coverage

1.6%Mobile-number coverage

10.1Average contacts per company

1-10Median size (employees)

22.5%Largest-city concentration · Athens

Sep 6, 2026Page data refreshed

Companies by employee count

1-10

262

11-50

140

51-200

201-500

501-1,000

1,001-5,000

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

1,0120–30

6631–60

061–90

090–180

4180+

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 tax services accounting 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 “tax services accounting 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 tax services accounting 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 tax services accounting 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, 1,082 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 6, 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.

Tax services accounting firms by metro

Tax services accounting firms in Athens94

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 tax services accounting 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 tax services accounting firms are there based in Greece?

RevenueBase identified 418 tax services accounting 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 tax services accounting firms?

Athens leads with 94 headquartered companies, followed by Thessaloniki (20) and Piraeus (6).

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 1,082 verified decision-maker contacts tracked across these 418 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 6, 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.