Company lists · Data refreshed August 2026

Top 25 Accounting consulting firms based in Athens, Greece

There are 99 accounting consulting firms headquartered in Athens, Greece (RevenueBase, August 2026). RevenueBase tracks 2,045 professional contacts across them, including 380 with verified work emails and 16 with mobile numbers. Athens is the largest hub.

This list covers accounting consulting 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, how directly it supports the match, and when it was last checked. Data refreshed August 30, 2026.

99Companies
2,045Contacts tracked
380Verified emails
16Mobile numbers
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The 25 largest accounting consulting firms based in Athens, Greece

Ranked by team size
Top 25 of 99 accounting consulting firms based in Athens, Greece, ranked by team size, largest first. Data refreshed Aug 30, 2026. Evidence rates how directly each company's own description names accounting consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContactsVerified emails
1
Grant Thornton GreeceIndirect evidence

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

Source: company website · checked Aug 30, 2026
Athens, Greece1,001-5,0001,298231
2
PKF HellasStrong evidence

“PKF Hellas operates in Greece through "PKF Euroauditing SA" providing audit services and "PKF Hellas Consulting S.M.P.C" providing accounting, tax and advisory services.”

Source: company website · checked Aug 30, 2026
Athens, Greece51-200607
3
Baker Tilly GreecePartial evidence

“Baker Tilly South East Europe is a leading provider of accounting, audit, tax, and advisory services in the region, and a proud member of Baker Tilly International – a global top…”

Source: company website · checked Aug 30, 2026
Athens, Greece501-1,0005927
4

“NEPA Economic Consulting, led by CEO Konstantinos Patiris, is a premier financial advisory firm specializing in integrated Tax, Accounting and Business Consulting.”

Source: company website · checked Aug 30, 2026
Athens, Greece51-2003817
5
Interlog SAPartial 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: company website · checked Aug 30, 2026
Athens, Greece11-502111
6
Prooptiki SAPartial 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: company website · checked Aug 30, 2026
Athens, Greece11-501810
7
Nexia Eurostatus SAIndirect evidence

“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…”

Source: company website · checked Aug 30, 2026
Athens, Greece11-50167
8
Quantum BitsStrong evidence

“Quantum Business & IT Solutions was founded in 2013 with the purpose of providing consulting and training services in the areas of information technology and accounting.”

Source: company website · checked Aug 30, 2026
Athens, Greece11-50143
9
Seretis AccountingPartial evidence

“Seretis Accounting has built a strong reputation as a trusted business and tax consultant over the past 20 years.”

Source: company website · checked Aug 30, 2026
Athens, Greece11-50139
10

“Η εταιρία μας στελεχωμένη με κατηρτισμένους συνεργάτες προσφέρει ολοκληρωμένες λογιστικές, φοροτεχνικές και συμβουλευτικές υπηρεσίες σε κάθε ενδιαφερόμενο φυσικό ή νομικό πρόσωπο.”

Source: company website · checked Aug 30, 2026
Athens, Greece1-10122
11
FK Consulting ServicesStrong evidence

“FK Consulting Services Ltd is a dynamic firm providing accounting, tax and consulting services by experienced and accomplished professionals.”

Source: company website · checked Aug 30, 2026
Athens, Greece11-50105
12
Premier Consulting SAStrong evidence

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

Source: company website · checked Aug 30, 2026
Athens, Greece51-20095
13

“OLYMPIA AUDITORS S.A.”

Source: company website · checked Aug 30, 2026
Athens, Greece11-5095
14
TLS TAX AdvisoryStrong 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: company website · checked Aug 30, 2026
Athens, Greece1-1085
15

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

Source: company website · checked Aug 30, 2026
Athens, Greece11-5082
16
Privel PartnersIndirect 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: company website · checked Aug 30, 2026
Athens, Greece11-5075
17
Certus AccountingIndirect evidence
Source: company website · checked Aug 30, 2026
Athens, Greece11-5074
18
Delidakis & Associates P.CIndirect evidence
Source: company website · checked Aug 30, 2026
Athens, Greece11-5072
19
E Mentor Solutions P.CIndirect evidence

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

Source: company website · checked Aug 30, 2026
Athens, Greece11-5063
20
Adamopoulos ConsultingPartial evidence

“Adamopoulos Consulting is a full-service consulting firm that offers a wide range of top-quality financial services available for start-ups, SME and large corporations.”

Source: company website · checked Aug 30, 2026
Athens, Greece1-1061
21
Capa Epsilon OSPPartial evidence

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

Source: company website · checked Aug 30, 2026
Athens, Greece1-1061
22
TaxgatePartial evidence

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

Source: company website · checked Aug 30, 2026
Athens, Greece51-20041
23

“Η International Advisory Services Α.Ε.(IAS) είναι μία συμβουλευτική εταιρία που σχεδιάζει και παρέχει υπεύθυνα υπηρεσίες υψηλής ποιότητας, προσαρμοσμένες στις ιδιαίτερες ανάγκες…”

Source: company website · checked Aug 30, 2026
Athens, Greece11-5041
24
Delta Partners SAIndirect evidence

“Delta Partners Certified Public Accountants S.A.”

Source: company website · checked Aug 30, 2026
Athens, Greece11-5041
25

“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: company website · checked Aug 30, 2026
Athens, Greece1-1041

Showing 25 of 99 accounting consulting firms based in Athens, Greece

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Accounting consulting firms based in Athens, Greece at a glance

As of Aug 30, 2026
1-10Median size (employees)
AthensLargest hub · 99 HQs
16Contacts with mobile numbers
Aug 30, 2026Data refreshed

Companies by employee count

1-10
55
11-50
33
51-200
8
201-500
1
501-1,000
1
1,001-5,000
1

Accounting consulting firms by metro in Greece

MetroCompanies
Accounting consulting firms in Athens99
Accounting consulting firms in Thessaloniki17
Accounting consulting firms in Piraeus6
Accounting consulting firms in Salonica3
Accounting consulting firms in Amarousion3
Accounting consulting firms in Attica3
Accounting consulting firms in Nea Smyrni3

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 consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
What qualifies
Companies headquartered in Athens, Greece whose own description of what they do matches “accounting consulting firms”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among accounting consulting 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 an evidence rating so you can judge each match yourself.
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, 380 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 August 30, 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

How many accounting consulting firms are there based in Athens, Greece?

There are 99 accounting consulting firms headquartered in Athens, Greece as of August 2026 (RevenueBase).

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 accounting consulting firms?

Athens leads with 99 headquartered companies, followed by Thessaloniki (17) 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 380 verified decision-maker contacts tracked across these 99 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 30, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.