Company lists · Data refreshed September 2026

Top 25 B2B consultancy services based in Greece

Name: B2B consultancy services based in Greece
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 23, 2026 418 companies tracked

RevenueBase identified 418 B2B consultancy services headquartered in Greece as of September 2026 and tracks 3,835 professional contacts across them, including 1,241 with verified work emails and 100 with mobile numbers. Athens is the largest hub.

This list covers B2B consultancy services 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 23, 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 23, 2026 86% judged on-target in blind review

418Companies

3,835Contacts tracked

1,241Verified emails

100Mobile numbers

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The 25 largest B2B consultancy services based in Greece

Ranked by team size

Top 25 of 418 B2B consultancy services based in Greece, ranked by team size, largest first. Data refreshed Sep 23, 2026. RevenueBase Smart Search rates how each company's information relates to B2B consultancy services: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Accenture Greece	Indirect evidence	Kifisia, GreeceHQ checked Sep 23, 2026	1,001-5,000	1,171 contacts →
	Indirect evidence “Η Accenture είναι ηγέτιδα εταιρεία παροχής συμβουλευτικών υπηρεσιών σε παγκόσμιο επίπεδο, δημιουργώντας απτή αξία με ταχύτητα και σε μεγάλη κλίμακα.” Source: RevenueBase Database · checked Sep 23, 2026
2	Real Consulting	Indirect evidence	Chalandri, GreeceHQ checked Sep 23, 2026	501-1,000	285 contacts →
	Indirect evidence “Real Consulting, is one of the leading consulting and implementation of integrated IT projects companies in Greece.” Source: RevenueBase Database · checked Sep 23, 2026
3	Sportion	Indirect evidence	Athens, GreeceHQ checked Sep 23, 2026	51-200	119 contacts →
	Indirect evidence “Sportion is a promising and rapid developing company operating in multiple markets and regions.” Source: RevenueBase Database · checked Sep 23, 2026
4	Priority	Indirect evidence	Lykovrissi, GreeceHQ checked Sep 23, 2026	51-200	113 contacts →
	Indirect evidence “Founded in 1995, PRIORITY SA has become a leading consulting firm in Greece, specializing in Management, IT and Training.” Source: RevenueBase Database · checked Sep 23, 2026
5	Meccanica	Indirect evidence	Thessaloniki, GreeceHQ checked Sep 23, 2026	1,001-5,000	88 contacts →
	Indirect evidence “Η MECCANICA, ως post-tech εταιρεία-ηγέτης στην Ελλάδα, προσφέρει ολοκληρωμένες λύσεις για δημόσιους και ιδιωτικούς φορείς, μέσα από μία συνδυαστική προσέγγιση μελέτης, σχεδιασμού…” Source: RevenueBase Database · checked Sep 23, 2026
6	Innovation Technology And Management Consultants	Indirect evidence	Marousi, GreeceHQ checked Sep 23, 2026	n/a	81 contacts →
	Indirect evidence “ITMC S.A.” Source: RevenueBase Database · checked Sep 23, 2026
7	Syntax IT Group	Indirect evidence	Athens, GreeceHQ checked Sep 23, 2026	51-200	79 contacts →
	Indirect evidence “SYNTAX is a software, consulting, onsite & outsource IT services pioneer, operating from its Athens headquarters in Greece & EU, and in the Arabian Gulf from its affiliates SYNTAX…” Source: RevenueBase Database · checked Sep 23, 2026
8	Professional Services Solutions	Indirect evidence	Glyfada, GreeceHQ checked Sep 23, 2026	51-200	54 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 23, 2026
9	Data Noesis	Indirect evidence	Άγιοι Ανάργυροι, GreeceHQ checked Sep 23, 2026	11-50	35 contacts →
	Indirect evidence “Data Noesis follows a market-oriented approach in order to drive each customer in a digital transformation journey, with innovative solutions and professional services.” Source: RevenueBase Database · checked Sep 23, 2026
10	Epidosis	Indirect evidence	Thessaloniki, GreeceHQ checked Sep 23, 2026	11-50	34 contacts →
	Indirect evidence “Η εταιρεία EPIDOSIS Σύμβουλοι Ανάπτυξης Επιχειρήσεων, φέρνει την επανάσταση στην συμβουλευτική και φιλοδοξεί να στηρίξει την επιχειρηματικότητα, προσφέροντας πρακτικές και άμεσες…” Source: RevenueBase Database · checked Sep 23, 2026
11	PRC Group The Management House S.A	Indirect evidence	Metamorfosi, GreeceHQ checked Sep 23, 2026	51-200	28 contacts →
	Indirect evidence “Leading provider of integrated professional services to business, goverment and institutional clients.” Source: RevenueBase Database · checked Sep 23, 2026
12	Your Confidence S.A	Indirect evidence	Athens - Kifisia, GreeceHQ checked Sep 23, 2026	51-200	27 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 23, 2026
13	Break Even Consulting	Indirect evidence	GreeceHQ checked Sep 23, 2026	11-50	27 contacts →
	Indirect evidence “Η εταιρεία Break Even Consulting ειδικεύεται στην παροχή συμβουλευτικών και μελετητικών υπηρεσιών υψηλής ποιότητας σε επιχειρήσεις, οργανισμούς και σε φορείς του δημοσίου και…” Source: RevenueBase Database · checked Sep 23, 2026
14	Evolutionprojects	Indirect evidence	Ilioúpolis, GreeceHQ checked Sep 23, 2026	11-50	21 contacts →
	Indirect evidence “Technology - Consulting - Communication” Source: RevenueBase Database · checked Sep 23, 2026
15	Pentasoft Consulting M.A.E	Indirect evidence	Thermi, GreeceHQ checked Sep 23, 2026	11-50	21 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 23, 2026
16	Define Solutions S.A	Indirect evidence	Athens, GreeceHQ checked Sep 23, 2026	11-50	19 contacts →
	Indirect evidence “At Define Solutions, we put your business needs and goals first, in order to deliver tailored solutions that drive growth and streamline operations.” Source: RevenueBase Database · checked Sep 23, 2026
17	Oecon Group Of Companies	Partial evidence	Thessaloniki, GreeceHQ checked Sep 23, 2026	11-50	17 contacts →
	Partial evidence “OECON Group, a Greek-based consultancy company, has been providing exceptional business consulting services since 2003.” Source: RevenueBase Database · checked Sep 23, 2026
18	Remaco S.A	Indirect evidence	Marousi, GreeceHQ checked Sep 23, 2026	11-50	16 contacts →
	Indirect evidence “REMACO S.A, a founding member of the Hellenic Association of Management Consulting Firms (SESMA), is offering governance and innovation services, responsibly and consistently…” Source: RevenueBase Database · checked Sep 23, 2026
19	Blue Value	Indirect evidence	Thessaloniki, GreeceHQ checked Sep 23, 2026	11-50	16 contacts →
	Indirect evidence “Η BLUE VALUE είναι μία σύγχρονη εταιρεία παροχής συμβουλευτικών υπηρεσιών, υπηρεσιών υποστήριξης και λειτουργίας φορέων και υπηρεσιών εκπαίδευσης.” Source: RevenueBase Database · checked Sep 23, 2026
20	Grand Value	Indirect evidence	Μαρούσι, GreeceHQ checked Sep 23, 2026	11-50	16 contacts →
	Indirect evidence “Η Grand Value, δραστηριοποιείται στην παροχή εξειδικευμένων συμβουλευτικών υπηρεσιών που απευθύνονται σε μικρομεσαίες και μεγάλες εταιρείες ολόκληρου του φάσματος της…” Source: RevenueBase Database · checked Sep 23, 2026
21	Analytix Consulting	Indirect evidence	Athens, GreeceHQ checked Sep 23, 2026	1-10	15 contacts →
	Indirect evidence “Analytix, based in Athens - Greece, was established in 1997 as an IT consulting company, focusing in the broader financial services industry.” Source: RevenueBase Database · checked Sep 23, 2026
22	Codable	Indirect evidence	Thessaloniki, GreeceHQ checked Sep 23, 2026	11-50	15 contacts →
	Indirect evidence “At Codable, we partner with organizations undergoing digital and operational change.” Source: RevenueBase Database · checked Sep 23, 2026
23	Mpdo Consulting S.A	Indirect evidence	Patras, GreeceHQ checked Sep 23, 2026	1-10	14 contacts →
	Indirect evidence “We are a modern management consulting hub focused on SMEs, with experienced and highly educated professionals, bringing corporate services to small and medium-sized companies.” Source: RevenueBase Database · checked Sep 23, 2026
24	Quantum Bits	Indirect evidence	Athens, GreeceHQ checked Sep 23, 2026	11-50	14 contacts →
	Indirect 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: RevenueBase Database · checked Sep 23, 2026
25	Alphacons Intelligent Technology Solutions S.A	Indirect evidence	Iraklio, GreeceHQ checked Sep 23, 2026	11-50	14 contacts →
	Indirect evidence “AlphaCons is a consulting firm focusing on Technology.” Source: RevenueBase Database · checked Sep 23, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: B2B consultancy services. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names B2B consultancy services.
Partial evidence: Its own public description names part of B2B consultancy services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name B2B consultancy services. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 418 B2B consultancy services based in Greece

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B2B consultancy services based in Greece at a glance

As of Sep 23, 2026

32.4%Verified-email coverage

2.6%Mobile-number coverage

9.2Average contacts per company

1-10Median size (employees)

34.0%Largest-city concentration · Athens

Sep 23, 2026Page data refreshed

Companies by employee count

1-10

306

11-50

51-200

201-500

501-1,000

1,001-5,000

Freshness & accuracy

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

Email last verified

Median 26.0d

8860–30

33031–60

1761–90

090–180

8180+

Company record updated

Median 72.0d

00–30

1,27331–60

1,54861–90

86590–180

149180+

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 B2B consultancy services, 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 “B2B consultancy services”. 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 B2B consultancy services), 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 B2B consultancy services, 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, 1,241 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 23, 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.

B2B consultancy services by metro

B2B consultancy services in Athens142

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 B2B consultancy services, 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 B2B consultancy services are there based in Greece?

RevenueBase identified 418 B2B consultancy services 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?

Accenture Greece, headquartered in Athens, tops this list with the largest team on record.

Which city has the most B2B consultancy services?

Athens leads with 142 headquartered companies, followed by Thessaloniki (20) and Marousi (8).

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 1,241 verified decision-maker contacts tracked across these 418 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 23, 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.