Company lists · Data verified August 2026

Top 25 Digital transformation consulting firms based in Greece

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 257 companies tracked

There are 257 digital transformation consulting firms headquartered in Greece (RevenueBase, August 2026). RevenueBase tracks 6,253 professional contacts across them, including 2,874 with verified work emails and 140 with mobile numbers. Athens is the largest hub.

This list covers digital transformation consulting firms headquartered in Greece, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

257Companies

6,253Contacts tracked

2,874Verified emails

140Mobile numbers

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The 25 largest digital transformation consulting firms based in Greece

Ranked by team size

Top 25 of 257 digital transformation consulting firms based in Greece, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Adastra	Thessaloniki	1,001-5,000	1,572	872
2	Accenture Greece	Athens	1,001-5,000	1,177	529
3	Cognity	Athens	201-500	394	237
4	Real Consulting	Chalandri	501-1,000	279	157
5	Performance Technologies S.A	Athens	201-500	228	159
6	Atcom S.A	Athens	51-200	174	81
7	SLEED	n/a	51-200	159	27
8	Samaras & Associates Sa-Consulting Engineers	Athens	201-500	150	60
9	Inttrust S.A	n/a	51-200	146	90
10	D ONE Data Driven Value Creation	Athens	51-200	118	76
11	Logicom Solutions	Marousi	51-200	97	59
12	Active Computer Systems S.A	Athens	51-200	91	49
13	Meccanica Group S.A	Thessaloniki	1,001-5,000	87	19
14	Office Line SA	Athens	51-200	68	34
15	Stepone	Chalandri	51-200	57	35
16	Smartns Technological S.A	n/a	51-200	43	30
17	Globe ONE Digital	n/a	11-50	40	21
18	Data Noesis	n/a	11-50	35	1
19	Blend Technologies	Attica	51-200	34	11
20	Omnicliq	Thessaloniki	11-50	30	18
21	Novidea	n/a	11-50	28	11
22	Hypertech SA	Kalamaria	51-200	27	12
23	Logistic I	n/a	11-50	23	18
24	Deva Group	n/a	11-50	21	3
25	Designco	n/a	51-200	20	6

Showing 25 of 257 digital transformation consulting firms based in Greece

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Digital transformation consulting firms based in Greece at a glance

As of Aug 28, 2026

1-10Median size (employees)

AthensLargest hub · 93 HQs

140Contacts with mobile numbers

4Emails re-verified in last 30 days

Companies by employee count

1-10

169

11-50

51-200

201-500

501-1,000

1,001-5,000

Digital transformation consulting firms by metro

Metro	Companies
Digital transformation consulting firms in Athens	93
Digital transformation consulting firms in Thessaloniki	13
Digital transformation consulting firms in Chalandri	5
Digital transformation consulting firms in Marousi	5
Digital transformation consulting firms in Piraeus	4
Digital transformation consulting firms in Attica	4
Digital transformation consulting firms in Pylaia	4

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “digital transformation consulting firms”, with match quality audited by blind human judging, and headquartered in Greece.
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: Contact records re-verify on a rolling cadence; 4 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many digital transformation consulting firms are there based in Greece?

There are 257 digital transformation consulting firms headquartered in Greece as of August 2026 (RevenueBase).

What is the largest company on this list?

Adastra, headquartered in Thessaloniki, tops this list with the largest team on record.

Which city has the most digital transformation consulting firms?

Athens leads with 93 headquartered companies, followed by Thessaloniki (13) and Chalandri (5).

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 2,874 verified decision-maker contacts tracked across these 257 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.