Company lists · Data refreshed September 2026

Top 24 Accounting outsourcing service providers based in Greece

RevenueBase identified 96 accounting outsourcing service providers headquartered in Greece as of September 2026 and tracks 500 professional contacts across them, including 164 with verified work emails. Athens is the largest hub.

This list covers accounting outsourcing service providers 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 21, 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 21, 2026 86% judged on-target in blind review
96Companies
500Contacts tracked
164Verified emails
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The 24 largest accounting outsourcing service providers based in Greece

Ranked by team size
Top 24 of 96 accounting outsourcing service providers based in Greece, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to accounting outsourcing service providers: 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
1Partial evidenceAthens, GreeceHQ checked Sep 21, 202651-200116 contacts →

Partial evidence

Accounting - Taxation - Business Consulting OUR COMPANY Following many years of activity, Fovera Prostasia S.A.”

Source: RevenueBase Database · checked Sep 21, 2026
2Indirect evidenceKallithea, GreeceHQ checked Sep 21, 202611-5028 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 21, 2026
3Indirect evidenceKallithea, GreeceHQ checked Sep 21, 202611-5018 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
4Partial evidenceAthens, GreeceHQ checked Sep 21, 202611-5018 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 21, 2026
5Partial evidenceCholargos, GreeceHQ checked Sep 21, 202611-5015 contacts →

Partial evidence

“Corporate Consulting Services/Accounting Outsourced Services/Payroll Outsourced Services/Tax Planning”

Source: RevenueBase Database · checked Sep 21, 2026
6Partial evidenceAthens, GreeceHQ checked Sep 21, 202611-5013 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 21, 2026
7Partial evidencePylaia - Chortiatis, GreeceHQ checked Sep 21, 202611-5012 contacts →

Partial 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 21, 2026
8Indirect evidenceThessaloniki, GreeceHQ checked Sep 21, 202611-5011 contacts →

Indirect evidence

“Η Β.Κ.”

Source: RevenueBase Database · checked Sep 21, 2026
9Partial evidenceHeraklion, GreeceHQ checked Sep 21, 202611-508 contacts →

Partial evidence

“At Tsoukakis Accounting, our dedicated team’s mission is to provide high quality accounting, tax, and payroll services tailored to the unique needs of individuals and businesses.”

Source: RevenueBase Database · checked Sep 21, 2026
10Indirect evidenceAthens, GreeceHQ checked Sep 21, 202611-508 contacts →

Indirect evidence

“Ο όμιλος ΚΚΡ (Koumarianos-Kontaridis Partners), είναι ένας δυναμικός όμιλος εταιρειών Οικονομικής Επιχειρησιακής Διαχείρισης.”

Source: RevenueBase Database · checked Sep 21, 2026
11Partial evidenceAthens, GreeceHQ checked Sep 21, 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 21, 2026
12Indirect evidenceAthens, GreeceHQ checked Sep 21, 202611-507 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 21, 2026
13Indirect evidenceΠαλαιό Φάληρο, GreeceHQ checked Sep 21, 202611-506 contacts →

Indirect evidence

“Established in FMC S.A.”

Source: RevenueBase Database · checked Sep 21, 2026
14Partial evidenceAthens, GreeceHQ checked Sep 21, 20261-106 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
15Indirect evidenceGreeceHQ checked Sep 21, 202611-505 contacts →

Indirect evidence

“We provide the solutions to ensure you have access to this information when needed.”

Source: RevenueBase Database · checked Sep 21, 2026
16Partial evidencePatra, GreeceHQ checked Sep 21, 20261-104 contacts →

Partial evidence

“With over 30 years of industry expertise, our financial and accounting company is dedicated to unlocking financial excellence for businesses of all sizes.”

Source: RevenueBase Database · checked Sep 21, 2026
17Indirect evidenceΑθηνα, GreeceHQ checked Sep 21, 20261-104 contacts →

Indirect evidence

“Είμαστε η AFS Αδαμόπουλος,Λογιστική Εταιρεία με 25 έτη παρουσίας στον χώρο, πιστοποιημένη με τάξη Α' έχοντας αναπτύξει ένα ευρύ φάσμα Λογιστικών, Φορολογικών και Εργατικών…”

Source: RevenueBase Database · checked Sep 21, 2026
18Partial evidencePiraeus, GreeceHQ checked Sep 21, 202611-503 contacts →

Partial evidence

“For more than 30 years we have managed to meet the needs of enterprises, who increasingly assign their accounting related needs in Outsourced Tax Consultants - Accountants.”

Source: RevenueBase Database · checked Sep 21, 2026
19Partial evidenceΑγιος Δημήτριος, GreeceHQ checked Sep 21, 20261-103 contacts →

Partial evidence

Accounting Office”

Source: RevenueBase Database · checked Sep 21, 2026
20Indirect evidenceSalonica, GreeceHQ checked Sep 21, 202611-503 contacts →

Indirect evidence

“Grekos Consulting is specialized in providing comprehensive consulting services.”

Source: RevenueBase Database · checked Sep 21, 2026
21Indirect evidenceKifisiá, GreeceHQ checked Sep 21, 20261-103 contacts →

Indirect evidence

“Your finance business partner for growth.”

Source: RevenueBase Database · checked Sep 21, 2026
22Indirect evidenceAthens, GreeceHQ checked Sep 21, 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 21, 2026
23Partial evidenceNéa Smýrni, GreeceHQ checked Sep 21, 202651-2002 contacts →

Partial evidence

“Since our startup on 1995 in France, we provide accounting, tax, auditing and financial services to the business world.”

Source: RevenueBase Database · checked Sep 21, 2026
24Partial evidenceKavala, GreeceHQ checked Sep 21, 20261-101 contacts →

Partial evidence

“Our company provides high quality accounting services to our clients who are located in the prefectures of Thessaloniki, Kavala, Xanthi and Drama.”

Source: RevenueBase Database · checked Sep 21, 2026

Showing 24 of 96 accounting outsourcing service providers based in Greece

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Accounting outsourcing service providers based in Greece at a glance

As of Sep 21, 2026
32.8%Verified-email coverage
5.2Average contacts per company
1-10Median size (employees)
14.6%Largest-city concentration · Athens
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
58
11-50
34
51-200
4

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 96 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 accounting outsourcing service providers, 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 “accounting outsourcing service providers”. 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 accounting outsourcing service providers), 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 accounting outsourcing service providers, 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, 164 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 21, 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 accounting outsourcing service providers, 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 accounting outsourcing service providers are there based in Greece?

RevenueBase identified 96 accounting outsourcing service providers 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?

Fovera Prostasia S.A, headquartered in Greece, tops this list with the largest team on record.

Which city has the most accounting outsourcing service providers?

Athens leads with 14 headquartered companies, followed by Thessaloniki (6) and Kallithea (3).

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 164 verified decision-maker contacts tracked across these 96 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 21, 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.