Company lists · Data refreshed September 2026

Top 25 Tech consulting firms based in Greece

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

Compiled by the RevenueBase Data Team Data refreshed Sep 6, 2026 281 companies tracked

RevenueBase identified 281 tech consulting firms headquartered in Greece as of September 2026 and tracks 6,242 professional contacts across them, including 2,710 with verified work emails and 101 with mobile numbers. Athens is the largest hub.

This list covers tech 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 6, 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 6, 2026 86% judged on-target in blind review

281Companies

6,242Contacts tracked

2,710Verified emails

101Mobile numbers

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The 25 largest tech consulting firms based in Greece

Ranked by team size

Top 25 of 281 tech consulting firms based in Greece, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to tech 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 6, 2026	1,001-5,000	1,171 contacts →
	“Η Accenture είναι ηγέτιδα εταιρεία παροχής συμβουλευτικών υπηρεσιών σε παγκόσμιο επίπεδο, δημιουργώντας απτή αξία με ταχύτητα και σε μεγάλη κλίμακα.” Source: company website · checked Sep 6, 2026
2	Cognity	Indirect evidence	Athens, GreeceHQ checked Sep 6, 2026	201-500	397 contacts →
	“Cognity is the Digital Enabler of the leading Telecommunications, Financial Services and Retail organisations in Europe, Middle East and South Africa.” Source: company website · checked Sep 6, 2026
3	Singularlogic	Indirect evidence	Cholargos, GreeceHQ checked Sep 6, 2026	201-500	351 contacts →
	“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: company website · checked Sep 6, 2026
4	Real Consulting	Partial evidence	Chalandri, GreeceHQ checked Sep 6, 2026	501-1,000	285 contacts →
	“Real Consulting, is one of the leading consulting and implementation of integrated IT projects companies in Greece.” Source: company website · checked Sep 6, 2026
5	Performance Technologies S.A	Indirect evidence	Athens, GreeceHQ checked Sep 6, 2026	201-500	227 contacts →
	“Performance Technologies is a trusted partner for organizations redefining themselves through digital transformation.” Source: company website · checked Sep 6, 2026
6	Teka Systems	Indirect evidence	Chalandri, GreeceHQ checked Sep 6, 2026	201-500	215 contacts →
	“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: company website · checked Sep 6, 2026
7	Trasys Greece	Indirect evidence	Chalandri, GreeceHQ checked Sep 6, 2026	201-500	209 contacts →
	“At the heart of Athens, we combine technical excellence with a deep understanding of European challenges.” Source: company website · checked Sep 6, 2026
8	Cosmos Business Systems	Indirect evidence	Metamorfosi, GreeceHQ checked Sep 6, 2026	51-200	202 contacts →
	“Cosmos Business Systems is a leading Greek company that specializies in Information Technology and Telecommunications.” Source: company website · checked Sep 6, 2026
9	Ubitech	Partial evidence	Athens, GreeceHQ checked Sep 6, 2026	51-200	155 contacts →
	“UBITECH is a leading, innovative software house, systems integrator and technology provider, established to provide leading edge intelligent technical solutions and consulting…” Source: company website · checked Sep 6, 2026
10	Inttrust S.A	Partial evidence	Ag. Paraskevi, GreeceHQ checked Sep 6, 2026	51-200	146 contacts →
	“Established in 2006, InTTrust is an IT Consulting, Technology and Digital solutions and services provider.” Source: company website · checked Sep 6, 2026
11	Upcominds	Partial evidence	Dafni, GreeceHQ checked Sep 6, 2026	201-500	145 contacts →
	“UpcoMinds is a dynamic Information Technology company that provides Managed IT Services, Mobile Apps (IOS, Android), IT Consulting and Support, Software Architecture & Design…” Source: company website · checked Sep 6, 2026
12	Sportion	Indirect evidence	Athens, GreeceHQ checked Sep 6, 2026	51-200	119 contacts →
	“Sportion is a promising and rapid developing company operating in multiple markets and regions.” Source: company website · checked Sep 6, 2026
13	Priority	Partial evidence	Lykovrissi, GreeceHQ checked Sep 6, 2026	51-200	113 contacts →
	“Founded in 1995, PRIORITY SA has become a leading consulting firm in Greece, specializing in Management, IT and Training.” Source: company website · checked Sep 6, 2026
14	Athens Technology Center	Indirect evidence	Athens, GreeceHQ checked Sep 6, 2026	51-200	108 contacts →
	“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: company website · checked Sep 6, 2026
15	Active Computer Systems S.A	Indirect evidence	Athens, GreeceHQ checked Sep 6, 2026	51-200	92 contacts →
	“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: company website · checked Sep 6, 2026
16	Infinitum S.A	Indirect evidence	Lykovrysi, GreeceHQ checked Sep 6, 2026	51-200	90 contacts →
	“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: company website · checked Sep 6, 2026
17	Meccanica	Partial evidence	Thessaloniki, GreeceHQ checked Sep 6, 2026	1,001-5,000	88 contacts →
	“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: company website · checked Sep 6, 2026
18	Intellisolutions	Indirect evidence	Athens, GreeceHQ checked Sep 6, 2026	51-200	85 contacts →
	“Intelli Solutions S.A.” Source: company website · checked Sep 6, 2026
19	Innovation Technology And Management Consultants	Indirect evidence	Marousi, GreeceHQ checked Sep 6, 2026	n/a	81 contacts →
	“ITMC S.A.” Source: company website · checked Sep 6, 2026
20	Syntax IT Group	Partial evidence	Athens, GreeceHQ checked Sep 6, 2026	51-200	79 contacts →
	“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: company website · checked Sep 6, 2026
21	Iteam Technology Solutions S.A	Indirect evidence	Athens, GreeceHQ checked Sep 6, 2026	51-200	78 contacts →
	“Founded in iteam S.A.” Source: company website · checked Sep 6, 2026
22	Office Line SA	Indirect evidence	Ag. Dimitrios, GreeceHQ checked Sep 6, 2026	51-200	69 contacts →
	“Office Line S.A is an internationally recognized leading Cloud Solutions Provider and Digital Transformation company, empowering customers’ specific business requirements, while…” Source: company website · checked Sep 6, 2026
23	Connect Line	Indirect evidence	Marousi, GreeceHQ checked Sep 6, 2026	51-200	62 contacts →
	“Η πορείας μας στην επιτυχία: Η Connectline ιδρύθηκε το 1998 και δραστηριοποιείται με επιτυχία στο χώρο της πληροφορικής.” Source: company website · checked Sep 6, 2026
24	Softweb Adaptive I.T. Solutions	Indirect evidence	Thessaloniki, GreeceHQ checked Sep 6, 2026	51-200	59 contacts →
	“Welcome to Softweb Adaptive I.T.” Source: company website · checked Sep 6, 2026
25	Ergologic S.A	Indirect evidence	Patras, GreeceHQ checked Sep 6, 2026	11-50	51 contacts →
	“Ergologic SA was founded in in Patras.” Source: company website · checked Sep 6, 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: tech 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 tech consulting firms.
Partial evidence: Its own public description names part of tech consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name tech 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 281 tech consulting firms based in Greece

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Tech consulting firms based in Greece at a glance

As of Sep 6, 2026

43.4%Verified-email coverage

1.6%Mobile-number coverage

22.2Average contacts per company

1-10Median size (employees)

33.1%Largest-city concentration · Athens

Sep 6, 2026Page data refreshed

Companies by employee count

1-10

173

11-50

51-200

201-500

501-1,000

1,001-5,000

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

2,5300–30

16831–60

061–90

090–180

12180+

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 tech 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 “tech 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 tech 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 tech 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, 2,710 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 6, 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.

Tech consulting firms by metro

Tech consulting firms in Athens93

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 tech 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 tech consulting firms are there based in Greece?

RevenueBase identified 281 tech 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 tech consulting firms?

Athens leads with 93 headquartered companies, followed by Piraeus (8) and Thessaloniki (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 2,710 verified decision-maker contacts tracked across these 281 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 6, 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.