Company lists · Data refreshed September 2026

Top 25 Custom software development consulting firms based in Greece

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

Compiled by the RevenueBase Data Team Data refreshed Sep 24, 2026 590 companies tracked

RevenueBase identified 590 custom software development consulting firms headquartered in Greece as of September 2026 and tracks 5,299 professional contacts across them, including 1,525 with verified work emails and 104 with mobile numbers. Athens is the largest hub.

This list covers custom software development 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 24, 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 24, 2026 86% judged on-target in blind review

590Companies

5,299Contacts tracked

1,525Verified emails

104Mobile numbers

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The 25 largest custom software development consulting firms based in Greece

Ranked by team size

Top 25 of 590 custom software development consulting firms based in Greece, ranked by team size, largest first. Data refreshed Sep 24, 2026. RevenueBase Smart Search rates how each company's information relates to custom software development 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	Agile Actors	Strong evidence	Chalandri, GreeceHQ checked Sep 24, 2026	201-500	307 contacts →
	Strong evidence “We deliver software development & data engineering services to our clients by building, coaching & managing cross-functional teams of tech professionals which augment, extend and…” Source: RevenueBase Database · checked Sep 24, 2026
2	Ubitech	Strong evidence	Athens, GreeceHQ checked Sep 24, 2026	51-200	155 contacts →
	Strong 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 24, 2026
3	Inttrust S.A	Partial evidence	Ag. Paraskevi, GreeceHQ checked Sep 24, 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 24, 2026
4	Upcominds	Strong evidence	Dafni, GreeceHQ checked Sep 24, 2026	201-500	145 contacts →
	Strong 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 24, 2026
5	Iteam Technology Solutions S.A	Indirect evidence	Athens, GreeceHQ checked Sep 24, 2026	51-200	78 contacts →
	Indirect evidence “Founded in iteam S.A.” Source: RevenueBase Database · checked Sep 24, 2026
6	Softweb Adaptive I.T. Solutions	Indirect evidence	Thessaloniki, GreeceHQ checked Sep 24, 2026	51-200	59 contacts →
	Indirect evidence “Welcome to Softweb Adaptive I.T.” Source: RevenueBase Database · checked Sep 24, 2026
7	Indice	Strong evidence	Athens, GreeceHQ checked Sep 24, 2026	51-200	53 contacts →
	Strong evidence “INDICE is an award winning software development and cloud computing company that prides itself in its engineering excellence.” Source: RevenueBase Database · checked Sep 24, 2026
8	Logismos S.A	Partial evidence	Salonica, GreeceHQ checked Sep 24, 2026	11-50	44 contacts →
	Partial evidence “Business development” Source: RevenueBase Database · checked Sep 24, 2026
9	Seamar Management SA	Partial evidence	Amaroúsion, GreeceHQ checked Sep 24, 2026	11-50	44 contacts →
	Partial evidence “Seamar Management s.a is committed to delivering custom based solutions on our client's requirements & business projects.” Source: RevenueBase Database · checked Sep 24, 2026
10	Braincube SA	Strong evidence	Athens, GreeceHQ checked Sep 24, 2026	11-50	40 contacts →
	Strong evidence “BrainCube is a provider of consulting services and integrated software solutions.” Source: RevenueBase Database · checked Sep 24, 2026
11	Threenitas	Indirect evidence	Athens, GreeceHQ checked Sep 24, 2026	11-50	38 contacts →
	Indirect evidence “Threenitas S.A.” Source: RevenueBase Database · checked Sep 24, 2026
12	Data Noesis	Partial evidence	Άγιοι Ανάργυροι, GreeceHQ checked Sep 24, 2026	11-50	35 contacts →
	Partial 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 24, 2026
13	01 Solutions Hellas	Partial evidence	Chalandri, GreeceHQ checked Sep 24, 2026	11-50	33 contacts →
	Partial evidence “Είμαστε ένα Software House το οποίο λειτουργεί στην Ελλάδα από το 2011, με συνεχή ανοδική πορεία και διεύρυνση της πελατειακής βάσης.” Source: RevenueBase Database · checked Sep 24, 2026
14	BBV Greece	Strong evidence	Thessaloniki, GreeceHQ checked Sep 24, 2026	11-50	32 contacts →
	Strong evidence “bbv Greece MEPE provides all services required for successful, customized software systems and software solutions for industrial, telecommunication, financial and insurance…” Source: RevenueBase Database · checked Sep 24, 2026
15	Ilyda SA	Strong evidence	Athens, GreeceHQ checked Sep 24, 2026	11-50	29 contacts →
	Strong evidence “The aim of ILYDA is the development of software and the provision of technologically advanced complete services in the area of information technology and telecommunications, with…” Source: RevenueBase Database · checked Sep 24, 2026
16	Code Create	Indirect evidence	Athens, GreeceHQ checked Sep 24, 2026	11-50	26 contacts →
	Indirect evidence “Code Create is an organization built by engineers for engineers.” Source: RevenueBase Database · checked Sep 24, 2026
17	Allweb Solutions SA	Indirect evidence	Chalkida, GreeceHQ checked Sep 24, 2026	11-50	26 contacts →
	Indirect evidence “Allweb’s experience in the field of Information technology Industry begun in 1989, but its real growth started at the end of the year when the company started its reorganization…” Source: RevenueBase Database · checked Sep 24, 2026
18	Appart	Indirect evidence	Athens, GreeceHQ checked Sep 24, 2026	11-50	24 contacts →
	Indirect evidence “AppArt is a company established in May 2012 by a team of committed professionals with highly diverse backgrounds ranging from engineering to marketing.” Source: RevenueBase Database · checked Sep 24, 2026
19	Softexpert Digital	Indirect evidence	Thessaloniki, GreeceHQ checked Sep 24, 2026	11-50	24 contacts →
	Indirect evidence “Στόχος μας είναι να αναπτύξουμε μια digital παρουσία που θα αυξήσει τα έσοδά σας, θα αυξήσει το δυνητικό πελατολόγιο και θα σας βοηθήσει να αποκτήσετε περισσότερους πελάτες για…” Source: RevenueBase Database · checked Sep 24, 2026
20	Happyonline WEB & AI Services	Indirect evidence	Moskháton, GreeceHQ checked Sep 24, 2026	11-50	24 contacts →
	Indirect evidence “Dimitris Dimakopoulos and Dimitris Tritsetakis, the visionary minds behind HappyOnline, united with a shared mission: to empower businesses to showcase their potential.” Source: RevenueBase Database · checked Sep 24, 2026
21	APT Information Systems	Partial evidence	Athens, GreeceHQ checked Sep 24, 2026	51-200	22 contacts →
	Partial evidence “APT Information Systems, since its establishment on March specializes on the wider field of technology aiming to fulfill the needs for the development and implementation of…” Source: RevenueBase Database · checked Sep 24, 2026
22	Vertoyo	Indirect evidence	Maroussi, GreeceHQ checked Sep 24, 2026	11-50	20 contacts →
	Indirect evidence “We design, develop, implement and support innovative end-to-end solutions.” Source: RevenueBase Database · checked Sep 24, 2026
23	Existanze Connectingdots	Partial evidence	Agía Paraskeví, GreeceHQ checked Sep 24, 2026	11-50	20 contacts →
	Partial evidence “Existanze #connectingdots is a highly competitive multidisciplinary software company.” Source: RevenueBase Database · checked Sep 24, 2026
24	Smartup	Partial evidence	Thessaloniki, GreeceHQ checked Sep 24, 2026	11-50	20 contacts →
	Partial evidence “SMARTUP is not just any software company.” Source: RevenueBase Database · checked Sep 24, 2026
25	Dwhite	Partial evidence	Thessaloniki, GreeceHQ checked Sep 24, 2026	11-50	20 contacts →
	Partial evidence “DWHITE is one of the few IT companies in Greece that provide services to a full range of Networking applications at 100% customised level, both functionally and creatively.” Source: RevenueBase Database · checked Sep 24, 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: custom software development 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 custom software development consulting firms.
Partial evidence: Its own public description names part of custom software development consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name custom software development 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 590 custom software development consulting firms based in Greece

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Custom software development consulting firms based in Greece at a glance

As of Sep 24, 2026

28.8%Verified-email coverage

2.0%Mobile-number coverage

9.0Average contacts per company

1-10Median size (employees)

15.9%Largest-city concentration · Athens

Sep 24, 2026Page data refreshed

Companies by employee count

1-10

266

11-50

51-200

201-500

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 27.0d

7040–30

22931–60

1461–90

090–180

2180+

Company record updated

Median 79.0d

00–30

80831–60

1,24361–90

79790–180

119180+

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 custom software development 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 “custom software development 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 custom software development 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 custom software development 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, 1,525 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 24, 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.

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 custom software development 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 custom software development consulting firms are there based in Greece?

RevenueBase identified 590 custom software development 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?

Agile Actors, headquartered in Chalandri, tops this list with the largest team on record.

Which city has the most custom software development consulting firms?

Athens leads with 94 headquartered companies, followed by Thessaloniki (22) and Patras (4).

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 1,525 verified decision-maker contacts tracked across these 590 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 24, 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.