Company lists · Data refreshed September 2026

Top 22 Tax accounting firms based in Athens, Greece

RevenueBase identified 88 tax accounting firms headquartered in Athens, Greece as of September 2026 and tracks 575 professional contacts across them, including 132 with verified work emails and 4 with mobile numbers. Athens is the largest hub.

This list covers tax accounting firms headquartered in Athens, 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 13, 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 13, 2026 86% judged on-target in blind review
88Companies
575Contacts tracked
132Verified emails
4Mobile numbers
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The 22 largest tax accounting firms based in Athens, Greece

Ranked by team size
Top 22 of 88 tax accounting firms based in Athens, Greece, ranked by team size, largest first. Data refreshed Sep 13, 2026. RevenueBase Smart Search rates how each company's information relates to tax 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidenceAthens, GreeceHQ checked Sep 13, 202651-20039 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 13, 2026
2Strong evidenceAthens, GreeceHQ checked Sep 13, 202611-5021 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 13, 2026
3Strong evidenceAthens, GreeceHQ checked Sep 13, 202611-5018 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 13, 2026
4Strong evidenceAthens, GreeceHQ checked Sep 13, 202611-5017 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 13, 2026
5Strong evidenceAthens, GreeceHQ checked Sep 13, 202611-5013 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 13, 2026
6Indirect evidenceAthens, GreeceHQ checked Sep 13, 202611-5010 contacts →

Indirect evidence

“OLYMPIA AUDITORS S.A.”

Source: RevenueBase Database · checked Sep 13, 2026
7Strong evidenceAthens, GreeceHQ checked Sep 13, 202651-2009 contacts →

Strong evidence

“Premier Consulting SA is an accounting, tax and business advisory firm established with the objective to provide high quality personalised services.”

Source: RevenueBase Database · checked Sep 13, 2026
8Strong evidenceAthens, GreeceHQ checked Sep 13, 202611-509 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 13, 2026
9Indirect evidenceAthens, GreeceHQ checked Sep 13, 202611-508 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 13, 2026
10Strong evidenceAthens, GreeceHQ checked Sep 13, 20261-108 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 13, 2026
11Partial evidenceAthens, GreeceHQ checked Sep 13, 202611-508 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 13, 2026
12Partial evidenceAthens, GreeceHQ checked Sep 13, 202611-508 contacts →

Partial evidence

“We solve all your consulting and accounting issues Having in its human resources experienced and specialized accountants Aegean Consulting Group provides high level accounting…”

Source: RevenueBase Database · checked Sep 13, 2026
13Indirect evidenceAthens, GreeceHQ checked Sep 13, 202611-507 contacts →

Indirect evidence

“From entrepreneurial start-ups to major multinational corporations, the businesses we work for have a strong belief that, whatever the market, supremely well managed structures…”

Source: RevenueBase Database · checked Sep 13, 2026
14Indirect evidenceAthens, GreeceHQ checked Sep 13, 202611-507 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 13, 2026
15Indirect evidenceAthens, GreeceHQ checked Sep 13, 202611-506 contacts →

Indirect evidence

“Η E Μέντωρ Solutions ιδρύθηκε το 2016 από στελέχη που συνεργάζονται με φορείς του δημοσίου πάνω από 10 έτη.”

Source: RevenueBase Database · checked Sep 13, 2026
16Strong evidenceAthens, GreeceHQ checked Sep 13, 20261-106 contacts →

Strong evidence

“CapaEpsilon OSP® was established in 2015 as an accounting and tax consultancy company.”

Source: RevenueBase Database · checked Sep 13, 2026
17Indirect evidenceAthens, GreeceHQ checked Sep 13, 20261-104 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 13, 2026
18Strong evidenceAthens, GreeceHQ checked Sep 13, 202651-2004 contacts →

Strong evidence

“TaxGate is a premier provider of cutting-edge accounting and tax solutions, dedicated to delivering exceptional service and innovative strategies.”

Source: RevenueBase Database · checked Sep 13, 2026
19Partial evidenceAthens, GreeceHQ checked Sep 13, 20261-103 contacts →

Partial evidence

“We, at Startfins, have been specializing in financial controlling, accounting and international taxation services since 2021.”

Source: RevenueBase Database · checked Sep 13, 2026
20Indirect evidenceAthens, GreeceHQ checked Sep 13, 20261-102 contacts →

Indirect evidence

“Παρέχουμε λογιστικές, φοροτεχνικές και χρηματοοικονομικές υπηρεσίες σε ατομικές και μικρομεσαίες επιχειρήσεις, καθώς και συμβουλευτική υποστήριξη σε εξειδικευμένα οικονομικά…”

Source: RevenueBase Database · checked Sep 13, 2026
21Partial evidenceAthens, GreeceHQ checked Sep 13, 20261-102 contacts →

Partial evidence

“At EPS, we are an accounting firm located in the Aigaleo, Athens, we take pride in ourselves on maintaining a policy of providing professional, efficient and high quality service…”

Source: RevenueBase Database · checked Sep 13, 2026
22Strong evidenceAthens, GreeceHQ checked Sep 13, 20261-102 contacts →

Strong evidence

“Emphasis is a firm specialized in accounting and tax consulting services, located in Athens.”

Source: RevenueBase Database · checked Sep 13, 2026

Showing 22 of 88 tax accounting firms based in Athens, Greece

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Tax accounting firms based in Athens, Greece at a glance

As of Sep 13, 2026
23.0%Verified-email coverage
0.7%Mobile-number coverage
6.5Average contacts per company
1-10Median size (employees)
100.0%Largest-city concentration · Athens
Sep 13, 2026Page data refreshed

Companies by employee count

1-10
54
11-50
28
51-200
5
201-500
1

Freshness & accuracy

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

Email last verified

Median 15.0d

Company record updated

Median 76.0d

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 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 Athens, Greece whose own description of what they do matches “tax 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 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 accounting firms, and records with no verified work email. Companies headquartered outside Athens 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, 132 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 13, 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 accounting firms by metro in Greece

  • Tax accounting firms in Athens88

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 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 accounting firms are there based in Athens, Greece?

RevenueBase identified 88 tax accounting firms headquartered in Athens, 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?

Nepa Economic Consulting S.A, headquartered in Athens, tops this list with the largest team on record.

Which city has the most tax accounting firms?

Athens leads with 88 headquartered companies, followed by Thessaloniki (19) and Piraeus (4).

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 132 verified decision-maker contacts tracked across these 88 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 13, 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.