Company lists · Data refreshed September 2026
Top 25 IT consulting firms based in Greece
RevenueBase identified 400 IT consulting firms headquartered in Greece as of September 2026 and tracks 8,735 professional contacts across them, including 3,551 with verified work emails and 174 with mobile numbers. Athens is the largest hub.
This list covers IT 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, how directly it supports the match, and when it was last checked. Data refreshed September 4, 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.
The 25 largest IT consulting firms based in Greece
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,177 | ||||
“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 4, 2026Thanks. The Data Team will review it. | |||||
| 2 | 394 | ||||
“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 4, 2026Thanks. The Data Team will review it. | |||||
| 3 | 350 | ||||
“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 4, 2026Thanks. The Data Team will review it. | |||||
| 4 | 279 | ||||
“Real Consulting, is one of the leading consulting and implementation of integrated IT projects companies in Greece.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 5 | 228 | ||||
“Performance Technologies is a trusted partner for organizations redefining themselves through digital transformation.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 6 | 214 | ||||
“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 4, 2026Thanks. The Data Team will review it. | |||||
| 7 | 209 | ||||
“At the heart of Athens, we combine technical excellence with a deep understanding of European challenges.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 8 | 205 | ||||
“Cosmos Business Systems is a leading Greek company that specializies in Information Technology and Telecommunications.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 9 | 155 | ||||
“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 4, 2026Thanks. The Data Team will review it. | |||||
| 10 | 146 | ||||
“Established in 2006, InTTrust is an IT Consulting, Technology and Digital solutions and services provider.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 11 | 113 | ||||
“Founded in 1995, PRIORITY SA has become a leading consulting firm in Greece, specializing in Management, IT and Training.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 12 | 107 | ||||
“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 4, 2026Thanks. The Data Team will review it. | |||||
| 13 | 93 | ||||
“BEWISE is an established team of dedicated IT professionals combining years of technical and business experience.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 14 | 91 | ||||
“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 4, 2026Thanks. The Data Team will review it. | |||||
| 15 | 90 | ||||
“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 4, 2026Thanks. The Data Team will review it. | |||||
| 16 | 87 | ||||
“Through its in-depth industry knowledge in private and public sector, MECCANICA GROUP provides its customers to think innovatively and to generate new ideas that change how they…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 17 | 85 | ||||
“Intelli Solutions S.A.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 18 | 81 | ||||
“ITMC S.A.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 19 | 79 | ||||
“Founded in iteam S.A.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 20 | 76 | ||||
“Euroaxes aims at providing innovative, high quality and value added services to enterprises and organizations regardless size and industry.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 21 | 57 | ||||
“Welcome to Softweb Adaptive I.T.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 22 | 52 | ||||
“Ergologic SA was founded in in Patras.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 23 | 52 | ||||
“InDigital S.A.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 24 | 44 | ||||
“Business development” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 25 | 43 | ||||
“SmartNS Technological S.A, founded in 2004 and headquartered in Athens, Greece, is a trusted leader in IT infrastructure design and implementation, security, and automation…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 400 IT consulting firms based in Greece
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IT consulting firms based in Greece at a glance
As of Sep 4, 2026Companies by employee count
Verified emails by last verification
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 consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 consulting firms”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among IT 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 an evidence 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, 3,551 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 4, 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 consulting firms by metro
- IT consulting firms in Athens119
Frequently asked
How many IT consulting firms are there based in Greece?
RevenueBase identified 400 IT 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 IT consulting firms?
Athens leads with 119 headquartered companies, followed by Thessaloniki (15) and Attica (10).
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 3,551 verified decision-maker contacts tracked across these 400 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 4, 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.