Company lists · Data refreshed September 2026

Top 25 IT consultancy companies based in Greece

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

Compiled by the RevenueBase Data Team Data refreshed Sep 26, 2026 394 companies tracked

RevenueBase identified 394 IT consultancy companies headquartered in Greece as of September 2026 and tracks 7,310 professional contacts across them, including 2,908 with verified work emails and 128 with mobile numbers. Athens is the largest hub.

This list covers IT consultancy companies 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 26, 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 26, 2026 86% judged on-target in blind review

394Companies

7,310Contacts tracked

2,908Verified emails

128Mobile numbers

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The 25 largest IT consultancy companies based in Greece

Ranked by team size

Top 25 of 394 IT consultancy companies based in Greece, ranked by team size, largest first. Data refreshed Sep 26, 2026. RevenueBase Smart Search rates how each company's information relates to IT consultancy companies: 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 26, 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 26, 2026
2	Cognity	Indirect evidence	Athens, GreeceHQ checked Sep 26, 2026	201-500	397 contacts →
	Indirect evidence “Cognity is the Digital Enabler of the leading Telecommunications, Financial Services and Retail organisations in Europe, Middle East and South Africa.” Source: RevenueBase Database · checked Sep 26, 2026
3	Singularlogic	Indirect evidence	Cholargos, GreeceHQ checked Sep 26, 2026	201-500	351 contacts →
	Indirect evidence “SingularLogic, a Space Hellas Group member, is a leading Software Integrator that provides Enterprise Software Solutions and Services for large enterprises and organizations in…” Source: RevenueBase Database · checked Sep 26, 2026
4	Real Consulting	Partial evidence	Chalandri, GreeceHQ checked Sep 26, 2026	501-1,000	285 contacts →
	Partial evidence “Real Consulting, is one of the leading consulting and implementation of integrated IT projects companies in Greece.” Source: RevenueBase Database · checked Sep 26, 2026
5	Performance Technologies S.A	Indirect evidence	Athens, GreeceHQ checked Sep 26, 2026	201-500	227 contacts →
	Indirect evidence “Performance Technologies is a trusted partner for organizations redefining themselves through digital transformation.” Source: RevenueBase Database · checked Sep 26, 2026
6	Teka Systems	Indirect evidence	Chalandri, GreeceHQ checked Sep 26, 2026	201-500	215 contacts →
	Indirect evidence “Teka Systems - Business Solutions, founded in 1975 and for more than 50 years is a leading business technology company in Greece and Southeastern Europe with extensive experience…” Source: RevenueBase Database · checked Sep 26, 2026
7	Trasys Greece	Indirect evidence	Chalandri, GreeceHQ checked Sep 26, 2026	201-500	209 contacts →
	Indirect evidence “At the heart of Athens, we combine technical excellence with a deep understanding of European challenges.” Source: RevenueBase Database · checked Sep 26, 2026
8	Cosmos Business Systems	Indirect evidence	Metamorfosi, GreeceHQ checked Sep 26, 2026	51-200	202 contacts →
	Indirect evidence “Cosmos Business Systems is a leading Greek company that specializies in Information Technology and Telecommunications.” Source: RevenueBase Database · checked Sep 26, 2026
9	Ubitech	Indirect evidence	Athens, GreeceHQ checked Sep 26, 2026	51-200	155 contacts →
	Indirect evidence “UBITECH is a leading, innovative software house, systems integrator and technology provider, established to provide leading edge intelligent technical solutions and consulting…” Source: RevenueBase Database · checked Sep 26, 2026
10	Inttrust S.A	Partial evidence	Ag. Paraskevi, GreeceHQ checked Sep 26, 2026	51-200	146 contacts →
	Partial evidence “Established in 2006, InTTrust is an IT Consulting, Technology and Digital solutions and services provider.” Source: RevenueBase Database · checked Sep 26, 2026
11	Upcominds	Partial evidence	Dafni, GreeceHQ checked Sep 26, 2026	201-500	145 contacts →
	Partial evidence “UpcoMinds is a dynamic Information Technology company that provides Managed IT Services, Mobile Apps (IOS, Android), IT Consulting and Support, Software Architecture & Design…” Source: RevenueBase Database · checked Sep 26, 2026
12	Sportion	Indirect evidence	Athens, GreeceHQ checked Sep 26, 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 26, 2026
13	Priority	Partial evidence	Lykovrissi, GreeceHQ checked Sep 26, 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 26, 2026
14	Athens Technology Center	Indirect evidence	Athens, GreeceHQ checked Sep 26, 2026	51-200	108 contacts →
	Indirect evidence “For over 30 years, we supply and manage the appropriate technology and resources to support the entrepreneurial spirit and profitable growth of medium and large sized companies…” Source: RevenueBase Database · checked Sep 26, 2026
15	Bewise	Partial evidence	Chalandri, GreeceHQ checked Sep 26, 2026	51-200	92 contacts →
	Partial evidence “BEWISE is an established team of dedicated IT professionals combining years of technical and business experience.” Source: RevenueBase Database · checked Sep 26, 2026
16	Active Computer Systems S.A	Indirect evidence	Athens, GreeceHQ checked Sep 26, 2026	51-200	92 contacts →
	Indirect evidence “Reaching 30 years of operation, Active is today among the largest Greek technology providers, reinforced by well-established partnerships with the world’s largest technology…” Source: RevenueBase Database · checked Sep 26, 2026
17	Infinitum S.A	Partial evidence	Lykovrysi, GreeceHQ checked Sep 26, 2026	51-200	90 contacts →
	Partial evidence “Established in 1991, Infinitum, a healthy and growing organization, boasts more than 30 years of expertise in the area of IT services and strong, rewarding relationships with…” Source: RevenueBase Database · checked Sep 26, 2026
18	Meccanica	Indirect evidence	Thessaloniki, GreeceHQ checked Sep 26, 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 26, 2026
19	Intellisolutions	Indirect evidence	Athens, GreeceHQ checked Sep 26, 2026	51-200	85 contacts →
	Indirect evidence “Intelli Solutions S.A.” Source: RevenueBase Database · checked Sep 26, 2026
20	Innovation Technology And Management Consultants	Indirect evidence	Marousi, GreeceHQ checked Sep 26, 2026	n/a	81 contacts →
	Indirect evidence “ITMC S.A.” Source: RevenueBase Database · checked Sep 26, 2026
21	Syntax IT Group	Partial evidence	Athens, GreeceHQ checked Sep 26, 2026	51-200	79 contacts →
	Partial 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 26, 2026
22	Iteam Technology Solutions S.A	Indirect evidence	Athens, GreeceHQ checked Sep 26, 2026	51-200	78 contacts →
	Indirect evidence “Founded in iteam S.A.” Source: RevenueBase Database · checked Sep 26, 2026
23	Euroaxes S.A	Indirect evidence	Nea Ionia, GreeceHQ checked Sep 26, 2026	51-200	78 contacts →
	Indirect evidence “Euroaxes aims at providing innovative, high quality and value added services to enterprises and organizations regardless size and industry.” Source: RevenueBase Database · checked Sep 26, 2026
24	Connect Line	Indirect evidence	Marousi, GreeceHQ checked Sep 26, 2026	51-200	62 contacts →
	Indirect evidence “Η πορείας μας στην επιτυχία: Η Connectline ιδρύθηκε το 1998 και δραστηριοποιείται με επιτυχία στο χώρο της πληροφορικής.” Source: RevenueBase Database · checked Sep 26, 2026
25	Softweb Adaptive I.T. Solutions	Indirect evidence	Thessaloniki, GreeceHQ checked Sep 26, 2026	51-200	59 contacts →
	Indirect evidence “Welcome to Softweb Adaptive I.T.” Source: RevenueBase Database · checked Sep 26, 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: IT consultancy companies. 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 IT consultancy companies.
Partial evidence: Its own public description names part of IT consultancy companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name IT consultancy companies. 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 394 IT consultancy companies based in Greece

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IT consultancy companies based in Greece at a glance

As of Sep 26, 2026

39.8%Verified-email coverage

1.8%Mobile-number coverage

18.6Average contacts per company

1-10Median size (employees)

29.2%Largest-city concentration · Athens

Sep 26, 2026Page data refreshed

Companies by employee count

1-10

236

11-50

113

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 28.0d

1,8920–30

94831–60

5461–90

090–180

14180+

Company record updated

Median 79.0d

00–30

2,24031–60

2,17761–90

2,58890–180

305180+

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 IT consultancy companies, 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 “IT consultancy companies”. 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 IT consultancy companies), 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 IT consultancy companies, 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, 2,908 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 26, 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.

IT consultancy companies by metro

IT consultancy companies in Athens115

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 IT consultancy companies, 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 IT consultancy companies are there based in Greece?

RevenueBase identified 394 IT consultancy companies 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 IT consultancy companies?

Athens leads with 115 headquartered companies, followed by Thessaloniki (12) and Attica (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 2,908 verified decision-maker contacts tracked across these 394 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 26, 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.