What Grant Thornton Greece does

Grant Thornton Greece is a private professional services firm providing audit, tax, advisory, and business process outsourcing services to enterprise and mid-market clients across Greece. Founded in 1994, the firm operates as a member of Grant Thornton International Ltd (GTIL), a global network spanning over 100 countries, and is headquartered in Athens with additional offices in Thessaloniki, Heraklion, Ioannina, and Rhodes. The firm maintains 501-1,000 employees and serves 11 vertical sectors, with primary focus on Financial Services, Energy & Resources, and Public Sector, and secondary coverage of Manufacturing, Hospitality & Tourism, Technology, Retail, Healthcare, Real Estate & Construction, Not for Profit, and Food & Beverage.

The firm's core service portfolio spans Assurance (audit, audit innovation, financial reporting advisory, sustainability & governance), Tax (corporate tax, tax compliance, international tax, transfer pricing, private client tax, indirect taxes), Advisory (deals services, technology, strategy and investments), and Business Process Outsourcing (accounting/tax compliance, HR & payroll). Two proprietary technology assets differentiate the offering: the Go Beyond RegCom Platform (2023) for real-time regulatory compliance monitoring, and the AI Center of Excellence (2025) for AI research, machine learning, NLP, and AI ethics development in partnership with academic and international technology partners. The firm also produces proprietary longitudinal research, including the 22-year Women in Business survey, Technology & Beyond survey (with AUEB), Greece's Thriving Deal Scene M&A report, and the Greek Natural Gas Market Report.

Grant Thornton Greece generates revenue through project-based professional services fees, with a multi-year contract model and partner-led direct engagement. Distribution is entirely domestic Greece-based, with go-to-market executed through direct sales, thought leadership publications, industry events (Thessaloniki 4.0, Delphi Economic Forum, Growth Awards co-organized with Eurobank since 2016), referrals, and a podcast series (Dialogues & Beyond). The firm is led by Managing Partner Vassilis Kazas and is a founding member of the UN Global Compact Network Hellas. In 2025, the firm served as financial advisor in 4 of the 5 most high-profile Greek M&A transactions and provided services to 8 of 14 companies in Greek ECM & DCM transactions, reflecting dominant positioning in the Greek deals market.

Name

Grant Thornton Greece

Legal name

Grant Thornton Chartered Accountants and Management Consultants Societe Anonyme and Grant Thornton Tax and Business Advisory Solutions Societe Anonyme

Website

https://grant-thornton.gr

Company type

Private

Founded year

1994

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Grant Thornton Greece is a private audit, tax, advisory, and business process outsourcing firm serving enterprise and mid-market clients across 11 industry verticals in Greece, operating as a member firm of Grant Thornton International Ltd with 501-1,000 employees across five Greek cities.

Ownership category

akta.pro rank

Headquarters

HQ city

Palaión Fáliron

HQ country

Greece

HQ region

Europe

Offices5 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D, Infrastructure

Revenue model

1. Professional Services Fees: Grant Thornton Greece generates revenue through providing professional services including audit, tax advisory, business advisory, deals services, technology consulting, and business process outsourcing. Revenue is derived from project-based engagements, recurring advisory relationships, and one-time consulting mandates with enterprise and mid-market clients.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels5 records

Core offering

Grant Thornton Greece provides assurance (audit, audit innovation, financial reporting advisory, sustainability and governance services), tax (corporate tax, tax compliance, international tax, transfer pricing, indirect taxes, private client tax, tax due diligence), advisory (deals services, technology consulting, strategy and investments), and business process outsourcing (accounting and tax compliance, HR and payroll) services. Services are delivered to listed entities, private companies, and the public sector through partner-led direct engagement supported by proprietary technology assets including the AI Center of Excellence and the Go Beyond RegCom compliance platform.

Product overview

Grant Thornton Greece operates as a professional services firm offering integrated advisory, assurance, tax, and business process outsourcing services. The firm's product portfolio includes the AI Center of Excellence for AI innovation and the Go Beyond RegCom compliance platform. Additionally, the firm produces proprietary research including the annual Technology & Beyond Survey (conducted with AUEB), Women in Business Survey (global gender diversity research), Greece's Thriving Deal Scene M&A report, and monthly Greek Natural Gas Market Report. These research products complement the firm's core consulting services by providing industry insights and thought leadership.

Differentiator

Problem solved

Functional benefit

Products and services

• Assurance Services Integrated assurance services including statutory audit, audit innovation, financial reporting advisory, and sustainability and governance services for Greek enterprises, listed entities, and the public sector. Includes sub-services Audit, Audit Innovation, Financial Reporting Advisory, and Sustainability and Governance Services.
• Tax Services Tax advisory and compliance services including corporate tax (business taxation), tax compliance, international tax, transfer pricing (intra-group transactions), indirect taxes, private client tax services, support during tax audits, tax due diligence, tax optimization of the production model, and services for internationally mobile personnel.
• Advisory Services Advisory services delivered by specialized business consultants covering Deals Services (M&A advisory, deal execution, ECM and DCM), Technology consulting, and Strategy and Investments engagements. Includes strategy development, growth advisory, and digital transformation consulting.
• Business Process Outsourcing (BPO) Business process outsourcing services including Accounting and Tax Compliance Services BPO (outsourced accounting and tax compliance) and HR and Payroll services (outsourced payroll and human resources administration) for Greek companies.
• Go Beyond RegCom Platform Proprietary corporate governance and regulatory compliance management platform enabling companies to understand, evaluate, document, monitor in real-time, and report compliance with any regulatory framework governing their operations. Sold as a standalone technology offering to clients requiring compliance management.
• AI Center of Excellence AI research, development, and advisory hub offering machine learning, natural language processing, and AI ethics solutions, developed in collaboration with international technology partners, startups, research institutions, and universities. Includes planned robotic advisors for the finance and energy sectors. Offered to clients as a differentiated AI advisory and development service.

Quantifiable outcome

• Served as financial advisor in 4 of the 5 most high-profile 2025 M&A transactions in Greece
• +2 more outcomes

Named customers2 records

Segments11 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability6 records

Feature2 records

Partnerships

Eleven partnerships are on record, tiered core and minor.

• SeederscoreStrategic or Co-development Partner · 22 May 2026Grant Thornton Greece and Seeders signed a Memorandum of Understanding for joint provision of specialized advisory services in the defense market. The partnership comes at a time when Europe is redesigning its defense architecture and Greece is emerging as a hub in the European defense landscape.
• Athena Research CentercoreStrategic or Co-development Partner · 7 April 2026Grant Thornton Greece signed a Memorandum of Cooperation with the Athena Research Center, one of Greece's most dynamic research organizations in information and communication technologies. The partnership aims to strengthen innovation and digital transformation through collaborative research and knowledge sharing.
• CapgeminicoreStrategic or Co-development Partner · 21 January 2026Grant Thornton Greece is part of a consortium led by Capgemini, selected as an exclusive European Investment Bank partner to deliver Project Development Assistance services for the EU Innovation Fund (€40 billion budget). The consortium includes HINICIO, Grant Thornton Greece, Adelphi, Stantec, and LDK Consultants. The consortium has completed over 10 PDAs and expects to deliver over 150 additional PDAs in the next four years.
• EurobankcoreStrategic or Co-development PartnerJoint initiative between Eurobank and Grant Thornton Greece to co-organize the Growth Awards, Greece's premier business excellence awards recognizing successful Greek businesses. The Growth Awards have been running since 2016 (2016, 2019, 2020, 2021, 2022, 2023, 2025, 2026).
• ExcellenSeasminorOthersGrant Thornton Greece supports ExcellenSeas, an organization helping students with financial difficulties from remote areas with their studies.
• WomenOnTopminorOthersGrant Thornton Greece supports WomenOnTop, an organization aimed at empowering women professionally and promoting equality in the labor market.
• HINICIOcoreStrategic or Co-development PartnerPart of the Capgemini-led consortium selected as exclusive European Investment Bank partner for EU Innovation Fund Project Development Assistance services.
• AdelphicoreStrategic or Co-development PartnerPart of the Capgemini-led consortium selected as exclusive European Investment Bank partner for EU Innovation Fund Project Development Assistance services.
• StanteccoreStrategic or Co-development PartnerPart of the Capgemini-led consortium selected as exclusive European Investment Bank partner for EU Innovation Fund Project Development Assistance services.
• LDK ConsultantscoreStrategic or Co-development PartnerPart of the Capgemini-led consortium selected as exclusive European Investment Bank partner for EU Innovation Fund Project Development Assistance services.
• Athens University of Economics and Business (AUEB)coreStrategic or Co-development PartnerGrant Thornton Greece collaborates annually with AUEB for the Technology & Beyond survey, conducting extensive research on the domestic market's digital and technological characteristics.

Scale indicators3 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• EY Greece: EY Greece is the local Ernst & Young member firm, delivering assurance, tax, consulting, and strategy services to Greek corporates, financial institutions, and public sector organizations. It is one of four Big 4 competitors directly overlapping with Grant Thornton Greece's service portfolio and target client base.
• Moore Greece: Moore Greece is the local member of Moore Global, an international accounting and advisory network. It directly competes with Grant Thornton Greece for SME and mid-market audit, tax, and advisory engagements in Greece with similar mid-tier professional services positioning.
• Baker Tilly Greece: Baker Tilly Greece is the local member of the Baker Tilly International network, offering audit, tax, and business advisory services. It competes with Grant Thornton Greece for mid-market audit, tax compliance, and advisory mandates in Greece, with comparable mid-tier positioning.
• PKF Greece: PKF Greece is the local member firm of PKF International, providing audit, tax, accounting, and advisory services to Greek businesses. It competes directly with Grant Thornton Greece for mid-market audit, tax compliance, and advisory mandates in Greece.
• RSM Greece: RSM Greece is the local member firm of RSM International, providing audit, tax, and consulting services to mid-market clients. It is a direct competitor to Grant Thornton Greece in the Greek mid-tier segment, particularly for audit and business advisory engagements.
• BDO Greece: BDO Greece is the local member firm of BDO International, providing audit, tax, and advisory services to mid-market Greek companies. As a fellow mid-tier global network firm, BDO is a direct competitor for mid-market audit mandates and advisory work in Greece.
• PwC Greece: PwC Greece is the local member firm of PricewaterhouseCoopers, providing assurance, tax, and advisory services across Greek enterprise and public sector clients. As a Big 4 firm, it directly competes with Grant Thornton Greece for the largest audit engagements, M&A deals, and cross-border advisory mandates in Greece.
• KPMG Greece: KPMG Greece is the local member firm of KPMG International, offering audit, tax, and advisory services to Greek enterprise and financial services clients. As a Big 4 firm, it directly competes with Grant Thornton Greece for large audit mandates and high-profile M&A advisory work in the Greek market.
• Mazars Greece: Mazars Greece is the local member of Mazars, an international audit, tax, and advisory firm. It directly competes with Grant Thornton Greece for mid-market and SME audit, tax, and advisory engagements in Greece, with similar positioning as an integrated mid-tier network firm.
• Deloitte Greece: Deloitte Greece is the local member firm of Deloitte Touche Tohmatsu, offering audit, tax, consulting, and advisory services to large-cap and listed Greek companies. It is one of the four Big 4 firms competing head-to-head with Grant Thornton Greece for premium audit, M&A advisory, and consulting mandates in Greece.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/grant-thornton-greece
• Xx.com/GrantThorntonGR
• Facebookfacebook.com/GrantThorntonGreece

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles15 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Grant Thornton Greece