Company lists · Data refreshed September 2026
Top 25 IT advisory consulting firms based in Greece
RevenueBase identified 223 company matches for IT advisory consulting firms associated with Greece as of September 2026 and tracks 5,124 professional contacts across them, including 2,005 with verified work emails and 74 with mobile numbers. Athens is the largest hub.
This list covers company matches for IT advisory consulting firms associated with Greece, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 26, 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 advisory consulting firms based in Greece
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,313 contacts → | ||||
Exact match “Grant Thornton SA provides personalised assurance, tax and advisory services to listed entities, privately-held businesses and public sector businesses.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase | |||||
| 2 | 1,171 contacts → | ||||
Exact match “Η Accenture είναι ηγέτιδα εταιρεία παροχής συμβουλευτικών υπηρεσιών σε παγκόσμιο επίπεδο, δημιουργώντας απτή αξία με ταχύτητα και σε μεγάλη κλίμακα.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase | |||||
| 3 | 397 contacts → | ||||
Exact match “Cognity is the Digital Enabler of the leading Telecommunications, Financial Services and Retail organisations in Europe, Middle East and South Africa.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase | |||||
| 4 | 285 contacts → | ||||
Exact match “Real Consulting, is one of the leading consulting and implementation of integrated IT projects companies in Greece.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase | |||||
| 5 | 227 contacts → | ||||
Exact match “Performance Technologies is a trusted partner for organizations redefining themselves through digital transformation.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase | |||||
| 6 | 146 contacts → | ||||
Exact match “Established in 2006, InTTrust is an IT Consulting, Technology and Digital solutions and services provider.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase | |||||
| 7 | 92 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase | |||||
| 8 | 81 contacts → | ||||
Exact match “ITMC S.A.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase | |||||
| 9 | 79 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase | |||||
| 10 | 69 contacts → | ||||
Exact match “Office Line S.A is an internationally recognized leading Cloud Solutions Provider and Digital Transformation company, empowering customers’ specific business requirements, while…” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase | |||||
| 11 | 40 contacts → | ||||
Exact match “BrainCube is a provider of consulting services and integrated software solutions.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase | |||||
| 12 | 39 contacts → | ||||
Exact match “NEPA Economic Consulting, led by CEO Konstantinos Patiris, is a premier financial advisory firm specializing in integrated Tax, Accounting and Business Consulting.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase | |||||
| 13 | 35 contacts → | ||||
Exact match “Data Noesis follows a market-oriented approach in order to drive each customer in a digital transformation journey, with innovative solutions and professional services.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase | |||||
| 14 | 29 contacts → | ||||
Exact match “tgs (Hellas) is the brand under which experienced professionals collaborate to provide integrated business services, audit, consulting, financial advisory, tax, compliance, legal…” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase | |||||
| 15 | 27 contacts → | ||||
Exact match “VisionIT is an IT consultancy firm aiming to provide its customers with unique expert IT solutions in the financial services industry.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase | |||||
| 16 | 27 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase | |||||
| 17 | 25 contacts → | ||||
Exact match “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.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase | |||||
| 18 | 25 contacts → | ||||
Exact match “Kleopas Alliott Business Consultants is an independent leading Accounting firm in Greece since 1990, with an innovative international orientation and a unique client focus service…” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase | |||||
| 19 | 25 contacts → | ||||
Exact match “atc providing Audit, Tax and Advisory services.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase | |||||
| 20 | 22 contacts → | ||||
Exact match “We provide assurance, advisory and consulting services in a broad range of business sectors.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase | |||||
| 21 | 21 contacts → | ||||
Exact match “Technology - Consulting - Communication” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase | |||||
| 22 | 21 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase | |||||
| 23 | 19 contacts → | ||||
Exact match “At Define Solutions, we put your business needs and goals first, in order to deliver tailored solutions that drive growth and streamline operations.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase | |||||
| 24 | 17 contacts → | ||||
Exact match “OECON Group, a Greek-based consultancy company, has been providing exceptional business consulting services since 2003.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase | |||||
| 25 | 16 contacts → | ||||
Exact match “Accutech is a state-of-the-art, customer-centric IT, digital transformation and advanced solutions company based in Athens, Greece, operating in Europe and Greece and…” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “IT advisory consulting firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 223 IT advisory consulting firms based in Greece
See the full list, filter by size, metro and specialty, and access 2,005 tracked professional contacts with verified work emails. Direct dials are available where recorded.
Free signup · no credit card
IT advisory consulting firms based in Greece at a glance
As of Sep 26, 2026Companies by employee count
Freshness & accuracy
How recently the business emails were verified and the company information checked
Email last verified
Median 28.0dCompany record updated
Median 68.0dHow this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- 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
- Company records associated with Greece whose business descriptions match “IT advisory consulting firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- 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 displayed company carries at least one verified work email. RevenueBase tracks 2,005 professional contacts with verified work emails across the full matched dataset. 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 26, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “IT advisory consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many IT advisory consulting firms are there based in Greece?
RevenueBase identified 223 company matches for IT advisory consulting firms associated with Greece as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Grant Thornton Greece tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most IT advisory consulting firms?
Athens leads with 72 company records, followed by Thessaloniki (9) and Marousi (5).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 2,005 professional contacts with verified work emails tracked across these 223 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 26, 2026.
Ready to reach these companies? Verified emails and direct dials for all 223 IT advisory consulting firms based in Greece. Start with a free account, no credit card.
Download this list →Related lists
IT advisory consulting firms by geography
- IT advisory consulting firms based in the United States
- IT advisory consulting firms based in the United Kingdom
- IT advisory consulting firms based in Brazil
- IT advisory consulting firms based in France
- IT advisory consulting firms based in Germany
- IT advisory consulting firms based in Canada
- IT advisory consulting firms based in Australia
- IT advisory consulting firms based in Spain
- IT advisory consulting firms based in Italy
- IT advisory consulting firms based in Mexico
- IT advisory consulting firms based in the Netherlands
- IT advisory consulting firms based in South Africa
Browse the directory
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- IT advisory consulting firms based in the United States
- IT advisory consulting firms based in the United Kingdom
- IT advisory consulting firms based in Brazil
- IT advisory consulting firms based in France
- IT advisory consulting firms based in Germany
- IT advisory consulting firms based in Canada
Company intelligence · public preview
Top 25 IT advisory consulting firms based in Greece
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 223 matching company records for IT advisory consulting firms based in Greece, with 5,124 tracked contacts and 2,005 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 26, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 IT advisory consulting firms based in Greece
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Grant Thornton Greecegrant-thornton.grHQ: Athens, GreeceReported employees: 1,001-5,000 | Athens, Greece | 1,001-5,000 | Exact match | 1,313 contacts → |
“Grant Thornton SA provides personalised assurance, tax and advisory services to listed entities, privately-held businesses and public sector businesses.” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Accenture Greeceaccenture.comHQ: Kifisia, GreeceReported employees: 1,001-5,000 | Kifisia, Greece | 1,001-5,000 | Exact match | 1,171 contacts → |
“Η Accenture είναι ηγέτιδα εταιρεία παροχής συμβουλευτικών υπηρεσιών σε παγκόσμιο επίπεδο, δημιουργώντας απτή αξία με ταχύτητα και σε μεγάλη κλίμακα.” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Cognitycognity.grHQ: Athens, GreeceReported employees: 201-500 | Athens, Greece | 201-500 | Exact match | 397 contacts → |
“Cognity is the Digital Enabler of the leading Telecommunications, Financial Services and Retail organisations in Europe, Middle East and South Africa.” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Real Consultingrealconsulting.grHQ: Chalandri, GreeceReported employees: 501-1,000 | Chalandri, Greece | 501-1,000 | Exact match | 285 contacts → |
“Real Consulting, is one of the leading consulting and implementation of integrated IT projects companies in Greece.” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Performance Technologies S.Aperformance.grHQ: Athens, GreeceReported employees: 201-500 | Athens, Greece | 201-500 | Exact match | 227 contacts → |
“Performance Technologies is a trusted partner for organizations redefining themselves through digital transformation.” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Inttrust S.Ainttrust.grHQ: Ag. Paraskevi, GreeceReported employees: 51-200 | Ag. Paraskevi, Greece | 51-200 | Exact match | 146 contacts → |
“Established in 2006, InTTrust is an IT Consulting, Technology and Digital solutions and services provider.” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Active Computer Systems S.Aactive.grHQ: Athens, GreeceReported employees: 51-200 | Athens, Greece | 51-200 | Exact match | 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…” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | HQ: Marousi, GreeceReported employees: Not recorded | Marousi, Greece | Not recorded | Exact match | 81 contacts → |
“ITMC S.A.” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Syntax IT Groupsyntaxitgroup.comHQ: Athens, GreeceReported employees: 51-200 | Athens, Greece | 51-200 | Exact match | 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…” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Office Line SAofficeline.grHQ: Ag. Dimitrios, GreeceReported employees: 51-200 | Ag. Dimitrios, Greece | 51-200 | Exact match | 69 contacts → |
“Office Line S.A is an internationally recognized leading Cloud Solutions Provider and Digital Transformation company, empowering customers’ specific business requirements, while…” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Braincube SAbraincube.grHQ: Athens, GreeceReported employees: 11-50 | Athens, Greece | 11-50 | Exact match | 40 contacts → |
“BrainCube is a provider of consulting services and integrated software solutions.” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Nepa Economic Consulting S.Anepa.grHQ: Athens, GreeceReported employees: 51-200 | Athens, Greece | 51-200 | Exact match | 39 contacts → |
“NEPA Economic Consulting, led by CEO Konstantinos Patiris, is a premier financial advisory firm specializing in integrated Tax, Accounting and Business Consulting.” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Data Noesisdatanoesis.grHQ: Άγιοι Ανάργυροι, GreeceReported employees: 11-50 | Άγιοι Ανάργυροι, Greece | 11-50 | Exact match | 35 contacts → |
“Data Noesis follows a market-oriented approach in order to drive each customer in a digital transformation journey, with innovative solutions and professional services.” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  TGS Hellastgs-hellas.comHQ: Maroussi, GreeceReported employees: 11-50 | Maroussi, Greece | 11-50 | Exact match | 29 contacts → |
“tgs (Hellas) is the brand under which experienced professionals collaborate to provide integrated business services, audit, consulting, financial advisory, tax, compliance, legal…” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Visionit GRvisionit.grHQ: Metamorfosi, GreeceReported employees: 11-50 | Metamorfosi, Greece | 11-50 | Exact match | 27 contacts → |
“VisionIT is an IT consultancy firm aiming to provide its customers with unique expert IT solutions in the financial services industry.” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Your Confidence S.Ayc.grHQ: Athens - Kifisia, GreeceReported employees: 51-200 | Athens - Kifisia, Greece | 51-200 | Exact match | 27 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 17 |  Systecom S.Asystecom.grHQ: Metamorfosi, GreeceReported employees: 11-50 | Metamorfosi, Greece | 11-50 | Exact match | 25 contacts → |
“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.” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Kleopas Alliott Business Consultants SAalliott.grHQ: Athens, GreeceReported employees: 11-50 | Athens, Greece | 11-50 | Exact match | 25 contacts → |
“Kleopas Alliott Business Consultants is an independent leading Accounting firm in Greece since 1990, with an innovative international orientation and a unique client focus service…” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | ATC Certified Public Accountantsatcaudit.gr HQ: GreeceReported employees: 11-50 | Greece | 11-50 | Exact match | 25 contacts → |
“atc providing Audit, Tax and Advisory services.” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Zephyros Partnerszephyrospartners.comHQ: Paradeisos Amarousiou, GreeceReported employees: 11-50 | Paradeisos Amarousiou, Greece | 11-50 | Exact match | 22 contacts → |
“We provide assurance, advisory and consulting services in a broad range of business sectors.” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Evolutionprojectsevolutionprojects.grHQ: Ilioúpolis, GreeceReported employees: 11-50 | Ilioúpolis, Greece | 11-50 | Exact match | 21 contacts → |
“Technology - Consulting - Communication” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Pentasoft Consulting M.A.Epentasoft.grHQ: Thermi, GreeceReported employees: 11-50 | Thermi, Greece | 11-50 | Exact match | 21 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 23 |  Define Solutions S.Adefine.grHQ: Athens, GreeceReported employees: 11-50 | Athens, Greece | 11-50 | Exact match | 19 contacts → |
“At Define Solutions, we put your business needs and goals first, in order to deliver tailored solutions that drive growth and streamline operations.” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Oecon Group Of Companiesoecon.grHQ: Thessaloniki, GreeceReported employees: 11-50 | Thessaloniki, Greece | 11-50 | Exact match | 17 contacts → |
“OECON Group, a Greek-based consultancy company, has been providing exceptional business consulting services since 2003.” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Accutech S.Aaccutech.grHQ: Agios Dimitrios, GreeceReported employees: 11-50 | Agios Dimitrios, Greece | 11-50 | Exact match | 16 contacts → |
“Accutech is a state-of-the-art, customer-centric IT, digital transformation and advanced solutions company based in Athens, Greece, operating in Europe and Greece and…” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 223 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
IT advisory consulting firms: dataset insights
September 26, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
223 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Freshness & accuracy
How recently the business emails were verified and the company information checked
Email last verified
Median 28.0dCompany record updated
Median 68.0dHow this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 26, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for IT advisory consulting firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many IT advisory consulting firms did RevenueBase find based in Greece?
The saved snapshot records 223 matching company records, 5,124 tracked contacts and 2,005 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 26, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
IT advisory consulting firms by geography
- IT advisory consulting firms based in the United States
- IT advisory consulting firms based in the United Kingdom
- IT advisory consulting firms based in Brazil
- IT advisory consulting firms based in France
- IT advisory consulting firms based in Germany
- IT advisory consulting firms based in Canada
- IT advisory consulting firms based in Australia
- IT advisory consulting firms based in Spain
- IT advisory consulting firms based in Italy
- IT advisory consulting firms based in Mexico
- IT advisory consulting firms based in the Netherlands
- IT advisory consulting firms based in South Africa
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 IT advisory consulting firms based in Greece. Snapshot: September 26, 2026. https://revenuebase.ai/companies/it-advisory-consulting-firms/greece.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- IT advisory consulting firms based in the United States
- IT advisory consulting firms based in the United Kingdom
- IT advisory consulting firms based in Brazil
- IT advisory consulting firms based in France
- IT advisory consulting firms based in Germany
- IT advisory consulting firms based in Canada
Company intelligence · public preview
Top 25 IT advisory consulting firms based in Greece
RevenueBase records 223 matching company records for IT advisory consulting firms based in Greece, with 5,124 tracked contacts and 2,005 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 26, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 IT advisory consulting firms based in Greece
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Grant Thornton Greecegrant-thornton.gr HQ: Athens, GreeceReported employees: 1,001-5,000 | Athens, Greece | 1,001-5,000 | Exact match | 1,313 contacts → |
“Grant Thornton SA provides personalised assurance, tax and advisory services to listed entities, privately-held businesses and public sector businesses.” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Accenture Greeceaccenture.com HQ: Kifisia, GreeceReported employees: 1,001-5,000 | Kifisia, Greece | 1,001-5,000 | Exact match | 1,171 contacts → |
“Η Accenture είναι ηγέτιδα εταιρεία παροχής συμβουλευτικών υπηρεσιών σε παγκόσμιο επίπεδο, δημιουργώντας απτή αξία με ταχύτητα και σε μεγάλη κλίμακα.” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Cognitycognity.gr HQ: Athens, GreeceReported employees: 201-500 | Athens, Greece | 201-500 | Exact match | 397 contacts → |
“Cognity is the Digital Enabler of the leading Telecommunications, Financial Services and Retail organisations in Europe, Middle East and South Africa.” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Real Consultingrealconsulting.gr HQ: Chalandri, GreeceReported employees: 501-1,000 | Chalandri, Greece | 501-1,000 | Exact match | 285 contacts → |
“Real Consulting, is one of the leading consulting and implementation of integrated IT projects companies in Greece.” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Performance Technologies S.Aperformance.gr HQ: Athens, GreeceReported employees: 201-500 | Athens, Greece | 201-500 | Exact match | 227 contacts → |
“Performance Technologies is a trusted partner for organizations redefining themselves through digital transformation.” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Inttrust S.Ainttrust.gr HQ: Ag. Paraskevi, GreeceReported employees: 51-200 | Ag. Paraskevi, Greece | 51-200 | Exact match | 146 contacts → |
“Established in 2006, InTTrust is an IT Consulting, Technology and Digital solutions and services provider.” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Active Computer Systems S.Aactive.gr HQ: Athens, GreeceReported employees: 51-200 | Athens, Greece | 51-200 | Exact match | 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…” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | HQ: Marousi, GreeceReported employees: Not recorded | Marousi, Greece | Not recorded | Exact match | 81 contacts → |
“ITMC S.A.” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Syntax IT Groupsyntaxitgroup.com HQ: Athens, GreeceReported employees: 51-200 | Athens, Greece | 51-200 | Exact match | 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…” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Office Line SAofficeline.gr HQ: Ag. Dimitrios, GreeceReported employees: 51-200 | Ag. Dimitrios, Greece | 51-200 | Exact match | 69 contacts → |
“Office Line S.A is an internationally recognized leading Cloud Solutions Provider and Digital Transformation company, empowering customers’ specific business requirements, while…” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Braincube SAbraincube.gr HQ: Athens, GreeceReported employees: 11-50 | Athens, Greece | 11-50 | Exact match | 40 contacts → |
“BrainCube is a provider of consulting services and integrated software solutions.” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Nepa Economic Consulting S.Anepa.gr HQ: Athens, GreeceReported employees: 51-200 | Athens, Greece | 51-200 | Exact match | 39 contacts → |
“NEPA Economic Consulting, led by CEO Konstantinos Patiris, is a premier financial advisory firm specializing in integrated Tax, Accounting and Business Consulting.” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Data Noesisdatanoesis.gr HQ: Άγιοι Ανάργυροι, GreeceReported employees: 11-50 | Άγιοι Ανάργυροι, Greece | 11-50 | Exact match | 35 contacts → |
“Data Noesis follows a market-oriented approach in order to drive each customer in a digital transformation journey, with innovative solutions and professional services.” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | TGS Hellastgs-hellas.com HQ: Maroussi, GreeceReported employees: 11-50 | Maroussi, Greece | 11-50 | Exact match | 29 contacts → |
“tgs (Hellas) is the brand under which experienced professionals collaborate to provide integrated business services, audit, consulting, financial advisory, tax, compliance, legal…” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Visionit GRvisionit.gr HQ: Metamorfosi, GreeceReported employees: 11-50 | Metamorfosi, Greece | 11-50 | Exact match | 27 contacts → |
“VisionIT is an IT consultancy firm aiming to provide its customers with unique expert IT solutions in the financial services industry.” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Your Confidence S.Ayc.gr HQ: Athens - Kifisia, GreeceReported employees: 51-200 | Athens - Kifisia, Greece | 51-200 | Exact match | 27 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 17 | Systecom S.Asystecom.gr HQ: Metamorfosi, GreeceReported employees: 11-50 | Metamorfosi, Greece | 11-50 | Exact match | 25 contacts → |
“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.” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Kleopas Alliott Business Consultants SAalliott.gr HQ: Athens, GreeceReported employees: 11-50 | Athens, Greece | 11-50 | Exact match | 25 contacts → |
“Kleopas Alliott Business Consultants is an independent leading Accounting firm in Greece since 1990, with an innovative international orientation and a unique client focus service…” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | ATC Certified Public Accountantsatcaudit.gr HQ: GreeceReported employees: 11-50 | Greece | 11-50 | Exact match | 25 contacts → |
“atc providing Audit, Tax and Advisory services.” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Zephyros Partnerszephyrospartners.com HQ: Paradeisos Amarousiou, GreeceReported employees: 11-50 | Paradeisos Amarousiou, Greece | 11-50 | Exact match | 22 contacts → |
“We provide assurance, advisory and consulting services in a broad range of business sectors.” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Evolutionprojectsevolutionprojects.gr HQ: Ilioúpolis, GreeceReported employees: 11-50 | Ilioúpolis, Greece | 11-50 | Exact match | 21 contacts → |
“Technology - Consulting - Communication” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Pentasoft Consulting M.A.Epentasoft.gr HQ: Thermi, GreeceReported employees: 11-50 | Thermi, Greece | 11-50 | Exact match | 21 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 23 | Define Solutions S.Adefine.gr HQ: Athens, GreeceReported employees: 11-50 | Athens, Greece | 11-50 | Exact match | 19 contacts → |
“At Define Solutions, we put your business needs and goals first, in order to deliver tailored solutions that drive growth and streamline operations.” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Oecon Group Of Companiesoecon.gr HQ: Thessaloniki, GreeceReported employees: 11-50 | Thessaloniki, Greece | 11-50 | Exact match | 17 contacts → |
“OECON Group, a Greek-based consultancy company, has been providing exceptional business consulting services since 2003.” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Accutech S.Aaccutech.gr HQ: Agios Dimitrios, GreeceReported employees: 11-50 | Agios Dimitrios, Greece | 11-50 | Exact match | 16 contacts → |
“Accutech is a state-of-the-art, customer-centric IT, digital transformation and advanced solutions company based in Athens, Greece, operating in Europe and Greece and…” Recorded description excerpt · September 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 223 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
IT advisory consulting firms: dataset insights
September 26, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
223 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Freshness & accuracy
How recently the business emails were verified and the company information checked
Email last verified
Median 28.0dCompany record updated
Median 68.0dHow this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 26, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for IT advisory consulting firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many IT advisory consulting firms did RevenueBase find based in Greece?
The saved snapshot records 223 matching company records, 5,124 tracked contacts and 2,005 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 26, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
IT advisory consulting firms by geography
- IT advisory consulting firms based in the United States
- IT advisory consulting firms based in the United Kingdom
- IT advisory consulting firms based in Brazil
- IT advisory consulting firms based in France
- IT advisory consulting firms based in Germany
- IT advisory consulting firms based in Canada
- IT advisory consulting firms based in Australia
- IT advisory consulting firms based in Spain
- IT advisory consulting firms based in Italy
- IT advisory consulting firms based in Mexico
- IT advisory consulting firms based in the Netherlands
- IT advisory consulting firms based in South Africa
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 IT advisory consulting firms based in Greece. Snapshot: September 26, 2026. https://revenuebase.ai/companies/it-advisory-consulting-firms/greece.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- IT advisory consulting firms based in the United States
- IT advisory consulting firms based in the United Kingdom
- IT advisory consulting firms based in Brazil
- IT advisory consulting firms based in France
- IT advisory consulting firms based in Germany
- IT advisory consulting firms based in Canada