Company lists · Data refreshed September 2026
Top 25 Professional services firms based in Greece
RevenueBase identified 488 professional services firms headquartered in Greece as of September 2026 and tracks 3,194 professional contacts across them, including 898 with verified work emails and 64 with mobile numbers. Athens is the largest hub.
This list covers professional services 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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.
The 25 largest professional services firms based in Greece
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 755 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 116 | ||||
“Accounting - Taxation - Business Consulting OUR COMPANY Following many years of activity, Fovera Prostasia S.A.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 54 | ||||
“Our tailored business solutions enable employers to leverage our professional expertise to gain sufficient time and resources to focus on their core business activities.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 39 | ||||
“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 Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 30 | ||||
“is a Tax, Accounting, and Consulting Company that has its origin in Greece and is expanded internationally.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | TGS HellasStrong evidence | 29 | |||
“tgs (Hellas) is the brand under which experienced professionals collaborate to provide integrated business services, audit, consulting, financial advisory, tax, compliance, legal…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | 28 | ||||
“Στην Computax, είμαστε αφοσιωμένοι στην παροχή εξαιρετικών λογιστικών υπηρεσιών που ενδυναμώνουν τις επιχειρήσεις να επιτύχουν τους οικονομικούς τους στόχους.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 27 | ||||
Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | Break Even ConsultingIndirect evidence | 27 | |||
“Η εταιρεία Break Even Consulting ειδικεύεται στην παροχή συμβουλευτικών και μελετητικών υπηρεσιών υψηλής ποιότητας σε επιχειρήσεις, οργανισμούς και σε φορείς του δημοσίου και…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | 23 | ||||
“Sarantitis is a leading, full service, law firm offering business law advice through its offices in Athens and Piraeus.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | Zephyros PartnersIndirect evidence | 22 | |||
“We provide assurance, advisory and consulting services in a broad range of business sectors.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | 22 | ||||
“Accounting, Counseling, IT & Educational Services for Public Sector entities (local governments, public entities)” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | 21 | ||||
“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 Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | 18 | ||||
“C&A was established in Athens in 2015.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | 18 | ||||
“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 Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 17 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | 17 | ||||
“OECON Group, a Greek-based consultancy company, has been providing exceptional business consulting services since 2003.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | 16 | ||||
“Orion is a modern company of chartered accountants, with structures adapted to the requirements of today.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 16 | ||||
“Η Grand Value, δραστηριοποιείται στην παροχή εξειδικευμένων συμβουλευτικών υπηρεσιών που απευθύνονται σε μικρομεσαίες και μεγάλες εταιρείες ολόκληρου του φάσματος της…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | 15 | ||||
“Corporate Consulting Services/Accounting Outsourced Services/Payroll Outsourced Services/Tax Planning” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | 15 | ||||
“SaaS Consulting & Analog SA in their present form operate since early 2006.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | 14 | ||||
“EUROACCOUNTING PC Accounting services- Business Consultants was established in by a team of qualified professionals, duly certified and legally competent in compliance with the…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | 13 | ||||
“Seretis Accounting has built a strong reputation as a trusted business and tax consultant over the past 20 years.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | 12 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 25 | 12 | ||||
“ARGO AUDIT is an auditing, tax and accounting firm, member of S.O.E.L.(The Institute of Certified Public Accountants of Greece) with its structures to meet the high demands of a…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 488 professional services firms based in Greece
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Professional services firms based in Greece at a glance
As of Sep 5, 2026Companies by employee count
Verified emails by last verification
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 professional services 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: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Greece whose own description of what they do matches “professional services 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 professional services 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 an evidence 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, 898 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 5, 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.
Professional services firms by metro
- Professional services firms in Athens110
- Professional services firms in Thessaloniki29
Frequently asked
How many professional services firms are there based in Greece?
RevenueBase identified 488 professional services 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?
Kpmg Greece, headquartered in Greece, tops this list with the largest team on record.
Which city has the most professional services firms?
Athens leads with 110 headquartered companies, followed by Thessaloniki (29) and Piraeus (7).
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 898 verified decision-maker contacts tracked across these 488 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 5, 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 SmartSearch, 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.
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