Company lists · Data refreshed September 2026

Top 25 Intelligence business consulting firms based in Greece

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

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 112 companies tracked

RevenueBase identified 112 intelligence business consulting firms headquartered in Greece as of September 2026 and tracks 1,919 professional contacts across them, including 800 with verified work emails. Athens is the largest hub.

This list covers intelligence business consulting 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, 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

112Companies

1,919Contacts tracked

800Verified emails

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The 25 largest intelligence business consulting firms based in Greece

Ranked by team size

Top 25 of 112 intelligence business consulting firms 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 intelligence business consulting firms: 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 21, 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 21, 2026
2	Priority	Partial evidence	Lykovrissi, GreeceHQ checked Sep 21, 2026	51-200	113 contacts →
	Partial 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 21, 2026
3	PRC Group The Management House S.A	Indirect evidence	Metamorfosi, GreeceHQ checked Sep 21, 2026	51-200	28 contacts →
	Indirect evidence “Leading provider of integrated professional services to business, goverment and institutional clients.” Source: RevenueBase Database · checked Sep 21, 2026
4	Your Confidence S.A	Indirect evidence	Athens - Kifisia, GreeceHQ checked Sep 21, 2026	51-200	27 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
5	Break Even Consulting	Partial evidence	GreeceHQ checked Sep 21, 2026	11-50	27 contacts →
	Partial 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 21, 2026
6	Brains ICS	Partial evidence	Athens, GreeceHQ checked Sep 21, 2026	11-50	19 contacts →
	Partial evidence “BRAINS Innovative Consulting Services is active in the provision of specialized Consulting and Development Services, with particular expertise in the broader Health & Security…” Source: RevenueBase Database · checked Sep 21, 2026
7	Define Solutions S.A	Indirect evidence	Athens, GreeceHQ checked Sep 21, 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 21, 2026
8	Dextera Consulting	Partial evidence	Marousi, GreeceHQ checked Sep 21, 2026	11-50	18 contacts →
	Partial evidence “Dextera is an independent consulting firm, specialized in crafting solutions to the complex business and strategic challenges of our clients.” Source: RevenueBase Database · checked Sep 21, 2026
9	DTI Solutions	Indirect evidence	Athens, GreeceHQ checked Sep 21, 2026	11-50	17 contacts →
	Indirect evidence “100+ years of combined experience.” Source: RevenueBase Database · checked Sep 21, 2026
10	Oecon Group Of Companies	Partial evidence	Thessaloniki, GreeceHQ checked Sep 21, 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 21, 2026
11	Interstar Security	Partial evidence	Metamorfosi, GreeceHQ checked Sep 21, 2026	51-200	17 contacts →
	Partial evidence “Founded in 1988, INTERSTAR Security is offering a broad array of customized, high quality, integrated consulting and security services.” Source: RevenueBase Database · checked Sep 21, 2026
12	Alternative Research Solutions	Partial evidence	Athens, GreeceHQ checked Sep 21, 2026	51-200	14 contacts →
	Partial evidence “Alternative Research Solutions mission is to support its clients’ brands and business through research-based market understanding and actionable Business Intelligence, based on…” Source: RevenueBase Database · checked Sep 21, 2026
13	Vexillum Security Services	Partial evidence	Piraeus, GreeceHQ checked Sep 21, 2026	11-50	11 contacts →
	Partial evidence “Vexillum Security was established to provide consulting services in the field of security in companies, organizations and individuals.” Source: RevenueBase Database · checked Sep 21, 2026
14	MDC Stiakakis	Partial evidence	Iraklion, GreeceHQ checked Sep 21, 2026	11-50	10 contacts →
	Partial evidence “Over the past 20 years, MDC Stiakakis’ people solve the toughest problems on behalf of their clients by providing high quality consulting, tax and financial services.” Source: RevenueBase Database · checked Sep 21, 2026
15	Sigma Business Network	Partial evidence	Agios Stefanos, GreeceHQ checked Sep 21, 2026	1-10	10 contacts →
	Partial evidence “Sigma Business Network provides its customers with high-level, fully customized Consulting Services and Integrated Programs to assist them in the critical areas of- Risk &…” Source: RevenueBase Database · checked Sep 21, 2026
16	HBI	Indirect evidence	Μαρούσι, GreeceHQ checked Sep 21, 2026	1-10	9 contacts →
	Indirect evidence “H HBI ως εταιρεία παροχής υπηρεσιών αποτελεί υπόδειγμα στο χώρο της συμβουλευτικής συνδυάζοντας απόλυτα τα οφέλη μιας μικρομεσαίας επιχείρησης με την πολυετή εμπειρία που…” Source: RevenueBase Database · checked Sep 21, 2026
17	Apiron	Partial evidence	Thessaloniki, GreeceHQ checked Sep 21, 2026	11-50	8 contacts →
	Partial evidence “Apiron is an innovative business intelligence corporation, using cutting-edge technologies to securely optimize and strengthen our client’s position in the market.” Source: RevenueBase Database · checked Sep 21, 2026
18	DBC Diadikasia	Indirect evidence	Chalandri, GreeceHQ checked Sep 21, 2026	201-500	7 contacts →
	Indirect evidence “Our company was founded in 1995, in order to provide companies and organizations of both the private and public sector with specialised services of a high standard.” Source: RevenueBase Database · checked Sep 21, 2026
19	Trinity Consulting	Indirect evidence	Thessaloniki, GreeceHQ checked Sep 21, 2026	1-10	6 contacts →
	Indirect evidence “Σύμβουλοι Επιχειρήσεων” Source: RevenueBase Database · checked Sep 21, 2026
20	Netrino	Indirect evidence	Athens, GreeceHQ checked Sep 21, 2026	1-10	5 contacts →
	Indirect evidence “NETRINO, an Omni Advisory, develops solutions to lead the market.” Source: RevenueBase Database · checked Sep 21, 2026
21	Excaliber	Indirect evidence	Athens, GreeceHQ checked Sep 21, 2026	11-50	5 contacts →
	Indirect evidence “Excaliber is driven by passion for professionalism, highest quality and results.” Source: RevenueBase Database · checked Sep 21, 2026
22	Mentoring SA	Indirect evidence	Kallithea - Athens, GreeceHQ checked Sep 21, 2026	11-50	5 contacts →
	Indirect evidence “MENTORING S.A.” Source: RevenueBase Database · checked Sep 21, 2026
23	infostep.gr	Indirect evidence	Athens, GreeceHQ checked Sep 21, 2026	1-10	5 contacts →
	Indirect evidence “InfoStep Solutions Tο Βήμα κάθε επιχείρησης στην Πληροφορία Η Λύση στη Μηχανογράφηση - Μηχανοργάνωση & Βελτίωση Λειτουργίας της επιχείρησης «Ένας στόχος χωρίς σχέδιο είναι απλά…” Source: RevenueBase Database · checked Sep 21, 2026
24	Delta Finance	Indirect evidence	Melíssia, GreeceHQ checked Sep 21, 2026	1-10	4 contacts →
	Indirect evidence “Delta Finance Financial and Strategic Business Consultants.” Source: RevenueBase Database · checked Sep 21, 2026
25	Εγεσ Business Consultant Company	Partial evidence	Kavala, GreeceHQ checked Sep 21, 2026	1-10	4 contacts →
	Partial evidence “ΕΓΕΣ - General Business Consulting Company since 1983 providing services with an emphasis on efficiency, consistency and confidence.” Source: RevenueBase Database · checked Sep 21, 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: intelligence business consulting firms. 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 intelligence business consulting firms.
Partial evidence: Its own public description names part of intelligence business consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name intelligence business consulting firms. 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 112 intelligence business consulting firms based in Greece

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Intelligence business consulting firms based in Greece at a glance

As of Sep 21, 2026

41.7%Verified-email coverage

17.1Average contacts per company

1-10Median size (employees)

31.2%Largest-city concentration · Athens

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 112 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 intelligence business consulting firms, 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 “intelligence business consulting firms”. 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 intelligence business consulting firms), 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 intelligence business consulting 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 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, 800 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.

Intelligence business consulting firms by metro

Intelligence business consulting firms in Athens35

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 intelligence business consulting firms, 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 intelligence business consulting firms are there based in Greece?

RevenueBase identified 112 intelligence business consulting 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?

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

Which city has the most intelligence business consulting firms?

Athens leads with 35 headquartered companies, followed by Thessaloniki (4) and Chalandri (2).

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 800 verified decision-maker contacts tracked across these 112 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.