Company lists · Data refreshed September 2026
Top 21 Advisory and outsourcing services based in Athens, Greece
RevenueBase identified 235 company matches for advisory and outsourcing services associated with Athens, Greece as of September 2026 and tracks 4,654 professional contacts across them, including 1,474 with verified work emails and 61 with mobile numbers. Across Greece, Athens is the largest hub for this category.
This list covers company matches for advisory and outsourcing services associated with Athens, 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 23, 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 21 largest advisory and outsourcing services based in Athens, 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 23, 2026 · View company records in RevenueBase | |||||
| 2 | 119 contacts → | ||||
Exact match “Sportion is a promising and rapid developing company operating in multiple markets and regions.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase | |||||
| 3 | 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 23, 2026 · View company records in RevenueBase | |||||
| 4 | 58 contacts → | ||||
Exact match “Baker Tilly South East Europe is a leading provider of accounting, audit, tax, and advisory services in the region, and a proud member of Baker Tilly International – a global top…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase | |||||
| 5 | 40 contacts → | ||||
Exact match “BrainCube is a provider of consulting services and integrated software solutions.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase | |||||
| 6 | 39 contacts → | ||||
Exact match “Since 2005, Optimal HR Group provides unparalleled, bespoke HR services to large organisations and SMEs operating in the EMEA region.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase | |||||
| 7 | 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 23, 2026 · View company records in RevenueBase | |||||
| 8 | 38 contacts → | ||||
Exact match “Arbitrage Real Estate is a real estate advisory and development management firm providing a wide spectrum of services in the property sector.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase | |||||
| 9 | 29 contacts → | ||||
Exact match “Our team is aiming to find the most suitable funding project for your company and to provide consulting services.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase | |||||
| 10 | 21 contacts → | ||||
Exact match “INTERLOG SA provides a range of high-quality services, including accounting, tax as well as advisory services to individuals, corporates and other organisations.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase | |||||
| 11 | 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 23, 2026 · View company records in RevenueBase | |||||
| 12 | 18 contacts → | ||||
Exact match “Prooptiki was established as an accounting firm back in 1984; today, it is one of the most successful companies in the economic sector, providing consultation on accounting-tax…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase | |||||
| 13 | 17 contacts → | ||||
Exact match “AMBE Accounting Management & Business Enhancement has, since founding, been active in the area of tax, accounting and consultancy services aiming at the holistic support of…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase | |||||
| 14 | 16 contacts → | ||||
Exact match “FCNC, formerly known as Ergani Finance, was founded in April 1997 and has a 26-year successful course in the field of providing specialized financial advisory services to both…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase | |||||
| 15 | 15 contacts → | ||||
Exact match “Analytix, based in Athens - Greece, was established in 1997 as an IT consulting company, focusing in the broader financial services industry.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase | |||||
| 16 | 14 contacts → | ||||
Exact match “Quantum Business & IT Solutions was founded in 2013 with the purpose of providing consulting and training services in the areas of information technology and accounting.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase | |||||
| 17 | 13 contacts → | ||||
Exact match “Seretis Accounting has built a strong reputation as a trusted business and tax consultant over the past 20 years.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase | |||||
| 18 | 12 contacts → | ||||
Exact match “The Zisimatos Management was established in 2006 in order to contribute to the effectiveness of management by providing integrated/inter-operational and training services.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase | |||||
| 19 | 12 contacts → | ||||
Exact match “DECISIO is an SAP consultancy company based in Athens, Greece.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase | |||||
| 20 | 10 contacts → | ||||
Exact match “Aegis S.K.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase | |||||
| 21 | 9 contacts → | ||||
Exact match “Premier Consulting SA is an accounting, tax and business advisory firm established with the objective to provide high quality personalised services.” Recorded in the RevenueBase company graph · Sep 23, 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 “advisory and outsourcing services”. 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 21 of 235 advisory and outsourcing services based in Athens, Greece
See the full list, filter by size, metro and specialty, and access 1,474 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Advisory and outsourcing services based in Athens, Greece at a glance
As of Sep 23, 2026Companies by employee count
Freshness & accuracy
How recently the business emails were verified and the company information checked
Email last verified
Median 26.0dCompany record updated
Median 67.0dHow 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 Athens, Greece whose business descriptions match “advisory and outsourcing services” 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 1,474 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 23, 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.
Advisory and outsourcing services by metro in Greece
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 “advisory and outsourcing services”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many advisory and outsourcing services are there based in Athens, Greece?
RevenueBase identified 235 company matches for advisory and outsourcing services associated with Athens, 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 in Greece has the most advisory and outsourcing services?
Athens leads Greece with 234 company records, followed by Thessaloniki (36) and Marousi (15).
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 1,474 professional contacts with verified work emails tracked across these 235 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 23, 2026.
Ready to reach these companies? Verified emails and direct dials for all 235 advisory and outsourcing services based in Athens, Greece. Start with a free account, no credit card.
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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.
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Company intelligence · public preview
Top 21 advisory and outsourcing services based in Athens, Greece
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 235 matching company records for advisory and outsourcing services based in Athens, Greece, with 4,654 tracked contacts and 1,474 verified work emails.
This public preview shows 21 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 23, 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 21 advisory and outsourcing services based in Athens, 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 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Sportionsportion.netHQ: Athens, GreeceReported employees: 51-200 | Athens, Greece | 51-200 | Exact match | 119 contacts → |
“Sportion is a promising and rapid developing company operating in multiple markets and regions.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  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 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Baker Tilly Greecebakertillysee.comHQ: Athens, GreeceReported employees: 501-1,000 | Athens, Greece | 501-1,000 | Exact match | 58 contacts → |
“Baker Tilly South East Europe is a leading provider of accounting, audit, tax, and advisory services in the region, and a proud member of Baker Tilly International – a global top…” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  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 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Optimaloptimalhrgroup.comHQ: Athens, GreeceReported employees: 201-500 | Athens, Greece | 201-500 | Exact match | 39 contacts → |
“Since 2005, Optimal HR Group provides unparalleled, bespoke HR services to large organisations and SMEs operating in the EMEA region.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  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 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Arbitrage Real Estatearbitrage-re.comHQ: Athens, GreeceReported employees: 51-200 | Athens, Greece | 51-200 | Exact match | 38 contacts → |
“Arbitrage Real Estate is a real estate advisory and development management firm providing a wide spectrum of services in the property sector.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  DNG Consulting SAdngsa.grHQ: Athens, GreeceReported employees: 11-50 | Athens, Greece | 11-50 | Exact match | 29 contacts → |
“Our team is aiming to find the most suitable funding project for your company and to provide consulting services.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Interlog SAinterlog.grHQ: Athens, GreeceReported employees: 11-50 | Athens, Greece | 11-50 | Exact match | 21 contacts → |
“INTERLOG SA provides a range of high-quality services, including accounting, tax as well as advisory services to individuals, corporates and other organisations.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  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 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Prooptiki SAprooptikisa.grHQ: Athens, GreeceReported employees: 11-50 | Athens, Greece | 11-50 | Exact match | 18 contacts → |
“Prooptiki was established as an accounting firm back in 1984; today, it is one of the most successful companies in the economic sector, providing consultation on accounting-tax…” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | HQ: Athens, GreeceReported employees: 11-50 | Athens, Greece | 11-50 | Exact match | 17 contacts → |
“AMBE Accounting Management & Business Enhancement has, since founding, been active in the area of tax, accounting and consultancy services aiming at the holistic support of…” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Fcnc Financial Advisorsfcnc.grHQ: Athens, GreeceReported employees: 11-50 | Athens, Greece | 11-50 | Exact match | 16 contacts → |
“FCNC, formerly known as Ergani Finance, was founded in April 1997 and has a 26-year successful course in the field of providing specialized financial advisory services to both…” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Analytix Consultinganalytix.grHQ: Athens, GreeceReported employees: 1-10 | Athens, Greece | 1-10 | Exact match | 15 contacts → |
“Analytix, based in Athens - Greece, was established in 1997 as an IT consulting company, focusing in the broader financial services industry.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Quantum Bitsquantum.grHQ: Athens, GreeceReported employees: 11-50 | Athens, Greece | 11-50 | Exact match | 14 contacts → |
“Quantum Business & IT Solutions was founded in 2013 with the purpose of providing consulting and training services in the areas of information technology and accounting.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Seretis Accountingseretisaccounting.grHQ: Athens, GreeceReported employees: 11-50 | Athens, Greece | 11-50 | Exact match | 13 contacts → |
“Seretis Accounting has built a strong reputation as a trusted business and tax consultant over the past 20 years.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Zisimatos Managementfbsolutions.grHQ: Athens, GreeceReported employees: 1-10 | Athens, Greece | 1-10 | Exact match | 12 contacts → |
“The Zisimatos Management was established in 2006 in order to contribute to the effectiveness of management by providing integrated/inter-operational and training services.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Decisio Consultingdecisio.grHQ: Athens, GreeceReported employees: 1-10 | Athens, Greece | 1-10 | Exact match | 12 contacts → |
“DECISIO is an SAP consultancy company based in Athens, Greece.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Aegis S.Kskaegis.grHQ: Athens, GreeceReported employees: 11-50 | Athens, Greece | 11-50 | Exact match | 10 contacts → |
“Aegis S.K.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Premier Consulting SApremier.grHQ: Athens, GreeceReported employees: 51-200 | Athens, Greece | 51-200 | Exact match | 9 contacts → |
“Premier Consulting SA is an accounting, tax and business advisory firm established with the objective to provide high quality personalised services.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 21 of 235 company matches
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Advisory and outsourcing services: dataset insights
September 23, 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
235 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 26.0dCompany record updated
Median 67.0dHow 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 23, 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 ↗
Advisory and outsourcing services by metro in Greece
Questions about this company list
What does Exact match mean for advisory and outsourcing services?
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 advisory and outsourcing services did RevenueBase find based in Athens, Greece?
The saved snapshot records 235 matching company records, 4,654 tracked contacts and 1,474 verified emails. The public preview displays 21 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 23, 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
Advisory and outsourcing services by geography
- Advisory and outsourcing services based in the United States
- Advisory and outsourcing services based in Brazil
- Advisory and outsourcing services based in the United Kingdom
- Advisory and outsourcing services based in France
- Advisory and outsourcing services based in Germany
- Advisory and outsourcing services based in Spain
- Advisory and outsourcing services based in Australia
- Advisory and outsourcing services based in Italy
- Advisory and outsourcing services based in the Netherlands
- Advisory and outsourcing services based in Canada
- Advisory and outsourcing services based in Mexico
- Advisory and outsourcing services based in South Africa
Cite this list
RevenueBase Data Team. Top 21 advisory and outsourcing services based in Athens, Greece. Snapshot: September 23, 2026. https://revenuebase.ai/companies/advisory-and-outsourcing-services/greece/athens.
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
- Advisory and outsourcing services based in the United States
- Advisory and outsourcing services based in Brazil
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- Advisory and outsourcing services based in France
- Advisory and outsourcing services based in Germany
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Company intelligence · public preview
Top 21 advisory and outsourcing services based in Athens, Greece
RevenueBase records 235 matching company records for advisory and outsourcing services based in Athens, Greece, with 4,654 tracked contacts and 1,474 verified work emails.
This public preview shows 21 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 23, 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 21 advisory and outsourcing services based in Athens, 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 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Sportionsportion.net HQ: Athens, GreeceReported employees: 51-200 | Athens, Greece | 51-200 | Exact match | 119 contacts → |
“Sportion is a promising and rapid developing company operating in multiple markets and regions.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | 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 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Baker Tilly Greecebakertillysee.com HQ: Athens, GreeceReported employees: 501-1,000 | Athens, Greece | 501-1,000 | Exact match | 58 contacts → |
“Baker Tilly South East Europe is a leading provider of accounting, audit, tax, and advisory services in the region, and a proud member of Baker Tilly International – a global top…” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | 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 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Optimaloptimalhrgroup.com HQ: Athens, GreeceReported employees: 201-500 | Athens, Greece | 201-500 | Exact match | 39 contacts → |
“Since 2005, Optimal HR Group provides unparalleled, bespoke HR services to large organisations and SMEs operating in the EMEA region.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | 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 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Arbitrage Real Estatearbitrage-re.com HQ: Athens, GreeceReported employees: 51-200 | Athens, Greece | 51-200 | Exact match | 38 contacts → |
“Arbitrage Real Estate is a real estate advisory and development management firm providing a wide spectrum of services in the property sector.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | DNG Consulting SAdngsa.gr HQ: Athens, GreeceReported employees: 11-50 | Athens, Greece | 11-50 | Exact match | 29 contacts → |
“Our team is aiming to find the most suitable funding project for your company and to provide consulting services.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Interlog SAinterlog.gr HQ: Athens, GreeceReported employees: 11-50 | Athens, Greece | 11-50 | Exact match | 21 contacts → |
“INTERLOG SA provides a range of high-quality services, including accounting, tax as well as advisory services to individuals, corporates and other organisations.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | 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 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Prooptiki SAprooptikisa.gr HQ: Athens, GreeceReported employees: 11-50 | Athens, Greece | 11-50 | Exact match | 18 contacts → |
“Prooptiki was established as an accounting firm back in 1984; today, it is one of the most successful companies in the economic sector, providing consultation on accounting-tax…” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | HQ: Athens, GreeceReported employees: 11-50 | Athens, Greece | 11-50 | Exact match | 17 contacts → |
“AMBE Accounting Management & Business Enhancement has, since founding, been active in the area of tax, accounting and consultancy services aiming at the holistic support of…” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Fcnc Financial Advisorsfcnc.gr HQ: Athens, GreeceReported employees: 11-50 | Athens, Greece | 11-50 | Exact match | 16 contacts → |
“FCNC, formerly known as Ergani Finance, was founded in April 1997 and has a 26-year successful course in the field of providing specialized financial advisory services to both…” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Analytix Consultinganalytix.gr HQ: Athens, GreeceReported employees: 1-10 | Athens, Greece | 1-10 | Exact match | 15 contacts → |
“Analytix, based in Athens - Greece, was established in 1997 as an IT consulting company, focusing in the broader financial services industry.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Quantum Bitsquantum.gr HQ: Athens, GreeceReported employees: 11-50 | Athens, Greece | 11-50 | Exact match | 14 contacts → |
“Quantum Business & IT Solutions was founded in 2013 with the purpose of providing consulting and training services in the areas of information technology and accounting.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Seretis Accountingseretisaccounting.gr HQ: Athens, GreeceReported employees: 11-50 | Athens, Greece | 11-50 | Exact match | 13 contacts → |
“Seretis Accounting has built a strong reputation as a trusted business and tax consultant over the past 20 years.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Zisimatos Managementfbsolutions.gr HQ: Athens, GreeceReported employees: 1-10 | Athens, Greece | 1-10 | Exact match | 12 contacts → |
“The Zisimatos Management was established in 2006 in order to contribute to the effectiveness of management by providing integrated/inter-operational and training services.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Decisio Consultingdecisio.gr HQ: Athens, GreeceReported employees: 1-10 | Athens, Greece | 1-10 | Exact match | 12 contacts → |
“DECISIO is an SAP consultancy company based in Athens, Greece.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Aegis S.Kskaegis.gr HQ: Athens, GreeceReported employees: 11-50 | Athens, Greece | 11-50 | Exact match | 10 contacts → |
“Aegis S.K.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Premier Consulting SApremier.gr HQ: Athens, GreeceReported employees: 51-200 | Athens, Greece | 51-200 | Exact match | 9 contacts → |
“Premier Consulting SA is an accounting, tax and business advisory firm established with the objective to provide high quality personalised services.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 21 of 235 company matches
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Advisory and outsourcing services: dataset insights
September 23, 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
235 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 26.0dCompany record updated
Median 67.0dHow 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 23, 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 ↗
Advisory and outsourcing services by metro in Greece
Questions about this company list
What does Exact match mean for advisory and outsourcing services?
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 advisory and outsourcing services did RevenueBase find based in Athens, Greece?
The saved snapshot records 235 matching company records, 4,654 tracked contacts and 1,474 verified emails. The public preview displays 21 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 23, 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.
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Cite this list
RevenueBase Data Team. Top 21 advisory and outsourcing services based in Athens, Greece. Snapshot: September 23, 2026. https://revenuebase.ai/companies/advisory-and-outsourcing-services/greece/athens.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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