Company lists · Data refreshed August 2026

Top 25 Consulting firms based in Greece

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

Compiled by the RevenueBase Data Team Data refreshed Aug 31, 2026 886 companies tracked

RevenueBase identified 886 company matches for consulting firms associated with Greece as of August 2026 and tracks 8,185 professional contacts across them, including 2,827 with verified work emails and 221 with mobile numbers. Athens is the largest hub.

This list covers company matches for consulting firms associated with Greece, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed August 31, 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Aug 31, 2026 How this list was built

886Companies

8,185Contacts tracked

2,827Verified emails

221Mobile numbers

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The 25 largest consulting firms based in Greece

Ranked by team size

Top 25 of 886 company matches for consulting firms based in Greece, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Aug 31, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Adastra	Exact match	Thessaloniki, Greece	1,001-5,000	1,572 contacts →
	Exact match “For over two decades, Adastra Corporation has transformed businesses into digital leaders, helping global organizations innovate, achieve operational excellence, and create…” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase
2	Accenture Greece	Exact match	Athens, Greece	1,001-5,000	1,177 contacts →
	Exact match “Η Accenture είναι ηγέτιδα εταιρεία παροχής συμβουλευτικών υπηρεσιών σε παγκόσμιο επίπεδο, δημιουργώντας απτή αξία με ταχύτητα και σε μεγάλη κλίμακα.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase
3	Salfo & Associates SA	Exact match	Athens, Greece	201-500	361 contacts →
	Exact match “About SALFO & Associates SALFO & Associates SA is a premier Greek Engineering & Management Consulting firm, delivering excellence through innovation, integrity, and human-centric…” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase
4	Real Consulting	Exact match	Chalandri, Greece	501-1,000	279 contacts →
	Exact match “Real Consulting, is one of the leading consulting and implementation of integrated IT projects companies in Greece.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase
5	Samaras & Associates Sa-Consulting Engineers	Exact match	Athens, Greece	201-500	150 contacts →
	Exact match “Η «Σαμαράς & Συνεργάτες Α.Ε- Σύμβουλοι Μηχανικοί» αποτελεί, σήμερα, τη μεγαλύτερη και αρτιότερα στελεχωμένη μελετητική και συμβουλευτική εταιρεία στην Ελλάδα.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase
6	D ONE Data Driven Value Creation	Exact match	Athens, Greece	51-200	118 contacts →
	Exact match “D ONE is the leading Swiss consultancy for data driven value creation.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase
7	Priority	Exact match	Athens, Greece	51-200	113 contacts →
	Exact match “Founded in 1995, PRIORITY SA has become a leading consulting firm in Greece, specializing in Management, IT and Training.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase
8	Ballian Techniki SA	Exact match	Athens, Greece	51-200	94 contacts →
	Exact match “Ballian Techniki provides design, construction and technical consulting services for clients in the private sector, for over 4 decades.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase
9	VCE Vienna Consulting Engineers ZT Gmbh	Exact match	Greece	201-500	68 contacts →
	Exact match “VCE Vienna Consulting Engineers ZT GmbH is an independent, high tech oriented consulting firm with its head office in Austria.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase
10	Noisis Development Consultant S.A	Exact match	Greece	51-200	65 contacts →
	Exact match “NOISIS S.A.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase
11	Professional Services Solutions	Exact match	Glyfada, Greece	51-200	54 contacts →
	Exact match “Our tailored business solutions enable employers to leverage our professional expertise to gain sufficient time and resources to focus on their core business activities.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase
12	Gaia SA	Exact match	Greece	51-200	43 contacts →
	Exact match “GAIA S.A.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase
13	Braincube SA	Exact match	Athens, Greece	11-50	40 contacts →
	Exact match “BrainCube is a provider of consulting services and integrated software solutions.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase
14	Q-Plan International	Exact match	Greece	11-50	38 contacts →
	Exact match “Q-PLAN INTERNATIONAL is an independent innovation and management consulting company based in Thessaloniki, Greece.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase
15	Revitup.Direct	Exact match	Greece	11-50	36 contacts →
	Exact match “RevitUp: a holistic approach that will “rev up” your hotel and enhance its profitability.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase
16	Samaras & Partners Group Of Companies	Exact match	Athens, Greece	201-500	31 contacts →
	Exact match “Ο Όμιλος «Σαμαράς & Συνεργάτες» κατέχει ηγετική θέση στην ελληνική αγορά ως ένας από τους πλέον ολοκληρωμένους μελετητικούς και συμβουλευτικούς οργανισμούς, παρέχοντας…” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase
17	Atlas Consulting	Exact match	Greece	11-50	30 contacts →
	Exact match “is a Tax, Accounting, and Consulting Company that has its origin in Greece and is expanded internationally.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase
18	Exergia S.A., Climate Change Consultants	Exact match	Greece	11-50	28 contacts →
	Exact match “EXERGIA is an independent firm of consultants operating internationally and providing specialized advice, expertise and technical consultancy on the sectors of Energy, Environment…” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase
19	PRC Group The Management House S.A	Exact match	Greece	51-200	28 contacts →
	Exact match “Leading provider of integrated professional services to business, goverment and institutional clients.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase
20	Your Confidence S.A	Exact match	Greece	51-200	27 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase
21	DNG Consulting SA	Exact match	Athens, Greece	11-50	27 contacts →
	Exact match “Our team is aiming to find the most suitable funding project for your company and to provide consulting services.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase
22	Kleopas Alliott Business Consultants SA	Exact match	Greece	11-50	25 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase
23	Aethon Engineering	Exact match	Greece	11-50	24 contacts →
	Exact match “We are a company of engineers, programmers, analysts and consultants who engage in designing, planning and generating innovative and smart solutions for the civil engineering…” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase
24	Rocketx	Exact match	Athene, Greece	51-200	20 contacts →
	Exact match “Not your typical agency.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase
25	Pentasoft Consulting M.A.E	Exact match	Greece	11-50	20 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “consulting firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 886 consulting firms based in Greece

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Consulting firms based in Greece at a glance

As of Aug 31, 2026

34.5%Verified-email coverage

2.7%Mobile-number coverage

9.2Average contacts per company

1-10Median size (employees)

34.4%Largest-city concentration · Athens

Aug 31, 2026Page data refreshed

Companies by employee count

1-10

606

11-50

246

51-200

201-500

501-1,000

1,001-5,000

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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: Company records associated with Greece whose business descriptions match “consulting firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 2,827 professional contacts with verified work emails across the full matched dataset. 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 31, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Consulting firms by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many consulting firms are there based in Greece?

RevenueBase identified 886 company matches for consulting firms associated with Greece as of August 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Adastra tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most consulting firms?

Athens leads with 305 company records, followed by Thessaloniki (38) and Marousi (15).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 2,827 professional contacts with verified work emails tracked across these 886 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 31, 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.