Company lists · Data refreshed September 2026

Top 25 IT infrastructure consulting firms based in Greece

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

Compiled by the RevenueBase Data Team Data refreshed Sep 4, 2026 240 companies tracked

RevenueBase identified 240 IT infrastructure consulting firms headquartered in Greece as of September 2026 and tracks 5,948 professional contacts across them, including 2,650 with verified work emails and 163 with mobile numbers. Athens is the largest hub.

This list covers IT infrastructure 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 4, 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 4, 2026 86% judged on-target in blind review

240Companies

5,948Contacts tracked

2,650Verified emails

163Mobile numbers

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The 25 largest IT infrastructure consulting firms based in Greece

Ranked by team size

Top 25 of 240 IT infrastructure consulting firms based in Greece, ranked by team size, largest first. Data refreshed Sep 4, 2026. RevenueBase Smart Search rates how each company's information relates to IT infrastructure 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 4, 2026	1,001-5,000	1,177 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 4, 2026
2	Salfo & Associates SA	Partial evidence	Athens, GreeceHQ checked Sep 4, 2026	201-500	361 contacts →
	Partial evidence “About SALFO & Associates SALFO & Associates SA is a premier Greek Engineering & Management Consulting firm, delivering excellence through innovation, integrity, and human-centric…” Source: RevenueBase Database · checked Sep 4, 2026
3	Real Consulting	Strong evidence	Chalandri, GreeceHQ checked Sep 4, 2026	501-1,000	279 contacts →
	Strong evidence “Real Consulting, is one of the leading consulting and implementation of integrated IT projects companies in Greece.” Source: RevenueBase Database · checked Sep 4, 2026
4	Performance Technologies S.A	Indirect evidence	Athens, GreeceHQ checked Sep 4, 2026	201-500	228 contacts →
	Indirect evidence “Performance Technologies is a trusted partner for organizations redefining themselves through digital transformation.” Source: RevenueBase Database · checked Sep 4, 2026
5	Inttrust S.A	Strong evidence	GreeceHQ checked Sep 4, 2026	51-200	146 contacts →
	Strong evidence “Established in 2006, InTTrust is an IT Consulting, Technology and Digital solutions and services provider.” Source: RevenueBase Database · checked Sep 4, 2026
6	Priority	Strong evidence	Athens, GreeceHQ checked Sep 4, 2026	51-200	113 contacts →
	Strong 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 4, 2026
7	Bewise	Partial evidence	GreeceHQ checked Sep 4, 2026	51-200	93 contacts →
	Partial evidence “BEWISE is an established team of dedicated IT professionals combining years of technical and business experience.” Source: RevenueBase Database · checked Sep 4, 2026
8	Active Computer Systems S.A	Indirect evidence	Athens, GreeceHQ checked Sep 4, 2026	51-200	91 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 4, 2026
9	Infinitum S.A	Partial evidence	Attica, GreeceHQ checked Sep 4, 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 4, 2026
10	Intellisolutions	Indirect evidence	Athens, GreeceHQ checked Sep 4, 2026	51-200	85 contacts →
	Indirect evidence “Intelli Solutions S.A.” Source: RevenueBase Database · checked Sep 4, 2026
11	Innovation Technology And Management Consultants	Indirect evidence	Marousi, GreeceHQ checked Sep 4, 2026	n/a	81 contacts →
	Indirect evidence “ITMC S.A.” Source: RevenueBase Database · checked Sep 4, 2026
12	Office Line SA	Indirect evidence	Athens, GreeceHQ checked Sep 4, 2026	51-200	68 contacts →
	Indirect evidence “Office Line S.A is an internationally recognized leading Cloud Solutions Provider and Digital Transformation company, empowering customers’ specific business requirements, while…” Source: RevenueBase Database · checked Sep 4, 2026
13	Ergologic S.A	Indirect evidence	Patras, GreeceHQ checked Sep 4, 2026	11-50	52 contacts →
	Indirect evidence “Ergologic SA was founded in in Patras.” Source: RevenueBase Database · checked Sep 4, 2026
14	Wizz IT	Partial evidence	GreeceHQ checked Sep 4, 2026	11-50	49 contacts →
	Partial evidence “Technology Consulting” Source: RevenueBase Database · checked Sep 4, 2026
15	Smartns Technological S.A	Strong evidence	GreeceHQ checked Sep 4, 2026	51-200	43 contacts →
	Strong evidence “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: RevenueBase Database · checked Sep 4, 2026
16	Data Noesis	Indirect evidence	GreeceHQ checked Sep 4, 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 4, 2026
17	Blend Technologies	Indirect evidence	Athens, GreeceHQ checked Sep 4, 2026	51-200	34 contacts →
	Indirect evidence “Complexity shouldn’t be a barrier to growth.” Source: RevenueBase Database · checked Sep 4, 2026
18	Elmisystems SA	Partial evidence	GreeceHQ checked Sep 4, 2026	51-200	33 contacts →
	Partial evidence “ELMISYSTEMS is a large Greek IT company with a leading role in the IT Industry and the Retail Business in Greece.” Source: RevenueBase Database · checked Sep 4, 2026
19	PSP Telecom & Networking	Indirect evidence	GreeceHQ checked Sep 4, 2026	51-200	33 contacts →
	Indirect evidence “Professional Service Partners (PSP), with its people-centered communication message “People Supporting People”, is a key player in the Greek market providing integrated services…” Source: RevenueBase Database · checked Sep 4, 2026
20	Visionit GR	Partial evidence	GreeceHQ checked Sep 4, 2026	11-50	27 contacts →
	Partial evidence “VisionIT is an IT consultancy firm aiming to provide its customers with unique expert IT solutions in the financial services industry.” Source: RevenueBase Database · checked Sep 4, 2026
21	Systecom S.A	Indirect evidence	Metamorfosi, GreeceHQ checked Sep 4, 2026	11-50	25 contacts →
	Indirect evidence “Our company's structure is based on a modern and flexible model ensuring adaptation in running developments but also in continuous requirements and needs of our clients.” Source: RevenueBase Database · checked Sep 4, 2026
22	Evolutionprojects	Partial evidence	GreeceHQ checked Sep 4, 2026	11-50	21 contacts →
	Partial evidence “Technology - Consulting - Communication” Source: RevenueBase Database · checked Sep 4, 2026
23	Precicom S.A	Indirect evidence	GreeceHQ checked Sep 4, 2026	11-50	19 contacts →
	Indirect evidence “30 years of success and Clients TRUST we earn every single day!” Source: RevenueBase Database · checked Sep 4, 2026
24	Binarytree	Partial evidence	Athens, GreeceHQ checked Sep 4, 2026	11-50	19 contacts →
	Partial evidence “Binary Tree was founded by professionals with notable presence in the Greek Information Technology scene, with the purpose of providing solutions to IT implementation and IT…” Source: RevenueBase Database · checked Sep 4, 2026
25	Define Solutions S.A	Indirect evidence	GreeceHQ checked Sep 4, 2026	11-50	18 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 4, 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 infrastructure 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 IT infrastructure consulting firms.
Partial evidence: Its own public description names part of IT infrastructure consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name IT infrastructure 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 240 IT infrastructure consulting firms based in Greece

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IT infrastructure consulting firms based in Greece at a glance

As of Sep 4, 2026

44.6%Verified-email coverage

2.7%Mobile-number coverage

24.8Average contacts per company

1-10Median size (employees)

27.9%Largest-city concentration · Athens

Sep 4, 2026Page data refreshed

Companies by employee count

1-10

153

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

00–30

23231–60

1,43061–90

98090–180

8180+

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 infrastructure 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 “IT infrastructure 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 IT infrastructure 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 IT infrastructure 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, 2,650 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 infrastructure consulting firms by metro

IT infrastructure consulting firms in Athens67

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 infrastructure 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 IT infrastructure consulting firms are there based in Greece?

RevenueBase identified 240 IT infrastructure 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 infrastructure consulting firms?

Athens leads with 67 headquartered companies, followed by Thessaloniki (7) and Marousi (6).

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 2,650 verified decision-maker contacts tracked across these 240 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 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.