What Grant Thornton Hungary does

Grant Thornton Hungary is a member firm of Grant Thornton International Ltd (GTIL), the world's sixth-largest audit and advisory network, operating in Hungary since 1991. The firm is structured across five privately-held Hungarian legal entities (Kft.): Grant Thornton Consulting Kft., Grant Thornton Audit Kft., Grant Thornton Amplify Kft., Grant Thornton Valuation Kft., and Grant Thornton Digital Kft., collectively employing more than 140 professionals across offices in Budapest (Dévai utca 26-28, H-1134) and Győr (Fehérvári út 75, H-9028). It ranks among the top eight audit and advisory firms in the Hungarian market.

The firm delivers a full suite of professional services: audit and assurance under Hungarian, IFRS, US GAAP, and HGB standards; tax advisory and compliance (TAO, KIVA, HIPA, VAT, global minimum tax, transfer pricing, e-invoicing, NAV eVAT); accounting and bookkeeping; payroll and human capital services (global mobility, HR compliance, HR transformation); corporate finance and M&A transaction advisory; valuation of companies, intangibles, and tangible assets; ESG and sustainability consulting (CSRD/GRI reporting, carbon footprint); business risk services (internal audit, governance, technology risk); and emerging compliance practices such as NIS2 cybersecurity and whistleblowing. Beyond advisory, the firm has built a digital services arm — InvoiceProxy, TaxConsole, and the DigiTax platform — providing direct integration with the Hungarian tax authority (NAV), e-invoicing infrastructure, and ERP/NAV eÁFA M2M automation.

Grant Thornton Hungary serves primarily large enterprises and mid-market companies, with a customer base spanning banking (Erste, CIB, K&H, Raiffeisen, UniCredit), energy (MOL, MVM, MVM Paksi Atomerőmű), pharmaceuticals (Richter Gedeon, Fresenius Kabi), automotive (Porsche Hungária, Toyota, BYD), retail (Lidl, Alza), construction (Strabag, Swietelsky), telecom (Magyar Telekom), and government-related entities (MTVA, MFB, MAVIR). Services are sold on a per-engagement basis through partner-led enterprise sales, supplemented by a multi-channel marketing approach including LinkedIn, Facebook, YouTube, content marketing, webinars, and direct referrals via the Grant Thornton global network.

Name

Grant Thornton Hungary

Legal name

Grant Thornton Hungary

Website

https://grantthornton.hu

Company type

Private

Founded year

1991

Operating status

Operating

Headcount range

51–100 employees

Short description

Grant Thornton Hungary is a top-8 Hungarian audit, tax, accounting, advisory, and digital-services firm, serving large enterprises and mid-market clients across banking, energy, automotive, pharma, and telecom since 1991 as part of the global Grant Thornton network.

Ownership category

akta.pro rank

Product category

Audit and Advisory Professional Services

NAICS

Accounting, Tax Preparation, Bookkeeping, and Payroll Services (54121), Accounting, Tax Preparation, Bookkeeping, and Payroll Services (5412)

SIC

Finance Services (6199)

akta.pro primary industry

Financial Reporting & Technical Accounting Advisory (GAAP/IFRS) (BPAHABAF)

Keywords

• Audit and assurance
• Tax advisory
• Accounting services
• Corporate finance advisory
• ESG consulting

Headquarters

HQ city

Budapest

HQ country

Hungary

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Audit & Assurance Services: Statutory and voluntary audits of financial statements under Hungarian, IFRS, US GAAP, and HGB standards; sustainability report auditing; special audits for mergers and transformations.
2. Tax Advisory & Compliance: Complex tax consultancy, flat-rate tax advisory solutions, e-invoicing consultancy, NAV eVAT consultancy, tax due diligence, global minimum tax advisory, and comprehensive tax compliance services covering TAO, KIVA, HIPA, VAT, and other taxes.
3. Accounting & Bookkeeping: Full accounting services including ongoing bookkeeping, financial statement preparation, tax return preparation, and reporting to authorities under Hungarian and international accounting standards.
4. Payroll Services: Outsourced payroll processing including wage calculations, tax and contribution transfers, declarations, and HR administration.
5. Corporate Finance & Transaction Advisory: M&A advisory, financial due diligence, valuation services, and transaction support for mergers, acquisitions, and restructuring.
6. Human Capital Services: Global mobility services, HR compliance, HR operations & development, HR technology consulting, payroll, and pay transparency advisory.
7. Digital Services & Automation: Accounting and tax automation, NAV data connection services, XML document generation, ERP due diligence, and e-invoicing solutions including InvoiceProxy and TaxConsole.
8. ESG & Sustainability Advisory: Sustainability reporting (CSRD/GRI), ESG consulting, carbon footprint measurement, ESG strategy development, and sustainability certification support.

Go-to-market motion2 records

Distribution channels2 records

Marketing channels8 records

Core offering

Grant Thornton Hungary provides audit and assurance, tax advisory and compliance, accounting and bookkeeping, payroll, corporate finance and transaction advisory, valuation, human capital, ESG and sustainability consulting, and business risk services to businesses operating in Hungary and Central Europe. The firm complements its advisory services with proprietary digital products—InvoiceProxy for electronic invoicing, TaxConsole for NAV digital tax authority access, and the DigiTax platform for accounting and tax automation—delivered through partner-led engagements from its Budapest and Győr offices.

Product overview

Grant Thornton Hungary offers a comprehensive portfolio of professional services organized as a multi-service advisory firm rather than a single unified software product. The core offering consists of traditional consulting services: Audit & Assurance, Tax Consultancy, Accounting/Bookkeeping, and Human Capital Services. These are supplemented by specialized advisory practices including ESG/Sustainability consultancy, Business Risk Services, Corporate Finance/M&A, Valuation, Controlling, Transfer Pricing, Whistleblowing, NIS2 cybersecurity compliance, and Interim professional services. Digital service offerings include InvoiceProxy and TaxConsole (e-invoicing and tax authority connectivity tools) and the DigiTax platform for accounting and tax automation. The portfolio is structured around professional expertise and advisory services, with digital tools positioned as enablers rather than standalone software products.

Differentiator

Problem solved

Functional benefit

Brands

• InvoiceProxy: Electronic invoicing platform leveraging NAV (Hungarian Tax Authority) infrastructure for fully data-driven digital invoicing.
• TaxConsole

Products and services

• InvoiceProxy Electronic invoicing platform that enables seamless transition from paper to data-driven electronic invoicing, leveraging NAV (Hungarian Tax Authority) infrastructure for compliance and security. Sold to businesses needing compliant e-invoicing.
• TaxConsole Application providing direct access to NAV's digital services for invoice data management and automation, enabling users to connect to Hungarian tax authority systems from their own devices. Sold to businesses needing automated NAV interaction.
• Audit & Assurance (Könyvvizsgálat) Statutory and voluntary audits of financial statements under Hungarian, IFRS, US GAAP, and HGB standards; group reporting audits; transformation balance sheet audits; full-scope financial due diligence; internal control system examinations; and sustainability report auditing under CSRD/GRI.
• Tax Advisory (Adótanácsadás) Complex tax consultancy, flat-rate tax advisory solutions, e-invoicing consultancy, NAV eVAT consultancy, tax due diligence, personal income tax and social security advisory, and global minimum tax advisory covering domestic, international, and foreign tax regulations.
• Accounting & Bookkeeping (Könyvelés) Full-service accounting and bookkeeping tailored to client needs, including VAT returns, INTRASTAT and statistical reporting, financial statement preparation under Hungarian and international standards (IFRS, US GAAP), interim financial statements, financial planning support, and disclosure tasks.
• Human Capital Services HR services including Global Mobility Services, HR compliance, HR Operations & Development, HR technology and digital transformation, payroll processing, and pay transparency and HR transformation advisory.
• Sustainability & ESG Consulting (Fenntarthatóság, ESG-tanácsadás) ESG consultancy including sustainability reporting under CSRD/GRI, ESG strategy development, carbon footprint measurement, EcoVadis preparation, and ESG certification services.
• Business Risk Services Risk management services including internal audit, regulatory compliance, corporate governance and risk management, and technology risk management services.
• Corporate Finance & Transaction Advisory (Tranzakciós tanácsadás) M&A advisory, financial due diligence, tax due diligence, valuation, and transaction support for buy-side and sell-side mergers, acquisitions, and restructuring.
• Valuation (Vagyonértékelés) Financial valuation (company valuation, intangible asset valuation, business planning, market modeling, capitalization rate build-up, purchase price allocation, impairment testing under IFRS/US GAAP, AMADEUS benchmarking for transfer pricing) and fixed asset valuation (real estate, machinery and equipment, collateral valuation, independent technical expertise, feasibility studies, technical due diligence, insurance valuations, remaining useful life estimation).
• Controlling & Management Reporting (Kontrolling) Controlling services including interim financial management, financial systems and process review, design and implementation of controlling and reporting systems, and BI/ERP system implementation management.
• NIS2 Consultancy Cybersecurity compliance consultancy for EU NIS2 directive requirements including gap analysis, professional mentoring, and pre-audit services.
• Transfer Pricing Advisory (Transzferár-tanácsadás) Transfer pricing advisory and documentation services bridging tax and financial reporting considerations for multinational and cross-border clients.
• Whistleblowing Service Whistleblowing service helping organizations comply with regulatory requirements for reporting misconduct.
• Interim Services Interim professional services providing expert resources for accounting, HR, sustainability, finance, and controlling projects.
• DigiTax Accounting & Tax Automation (Számvitel- és Adóautomatizáció) Accounting and tax automation platform providing data connections to Hungarian tax authority systems, XML invoice and e-document generation, NAV Online Invoice audit simulation, completion of missing invoice data submissions, correction of faulty reports, ERP due diligence, and electronic invoicing advisory.

Quantifiable outcome

• Strong market position as one of the top 8 advisory and audit firms in the Hungarian market

Named customers82 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• Grant Thornton International Ltd (GTIL)coreStrategic or Co-development PartnerGrant Thornton Hungary is a member firm of Grant Thornton International Ltd, a global network operating in 150+ markets with over 80,000 professionals. This membership enables access to international expertise, cross-border service capabilities, and global best practices while maintaining local market focus.

Scale indicators4 records

Recent moves1 record

Expansion highlights5 records

Direct peers

• Mazars Hungary: Mazars Hungary is part of the Mazars international integrated partnership, serving Hungarian and Central European clients with audit, tax, accounting and advisory services. It is one of the most direct mid-tier competitors to Grant Thornton Hungary for cross-border mandates.
• Crowe Hungary: Crowe Hungary is the Hungarian member of Crowe Global, providing audit, tax, advisory and risk consulting services to mid-market clients. Its service breadth and network-driven go-to-market directly parallel Grant Thornton Hungary's model.
• HLB Hungary: HLB Hungary is part of the HLB international network, providing audit, tax and advisory services to mid-market clients in Hungary. It is a comparable mid-tier, network-affiliated competitor with similar service breadth and target segments.
• BDO Hungary: BDO Hungary is a member of the BDO global network offering audit, tax, accounting and advisory services to mid-market and large enterprises in Hungary. It competes head-to-head with Grant Thornton Hungary for the same mid-tier enterprise audit and advisory engagements.
• Moore Hungary: Moore Hungary is part of the Moore Global network, offering audit, tax, accounting and advisory services to small and mid-sized enterprises. It is a comparable network-affiliated mid-tier competitor for similar Hungarian market segments.
• RSM Hungary: RSM Hungary operates as the Hungarian member of the RSM International network, providing audit, tax and consulting services to middle-market businesses. Its positioning, service mix, and target client segment closely mirror Grant Thornton Hungary's profile.

Broad incumbents

• PwC Hungary: PwC Hungary is part of the Big Four and serves large enterprises and multinationals with audit, tax, advisory, and digital transformation services. It overlaps with Grant Thornton Hungary on enterprise audit and tax mandates but operates at significantly larger scale.
• KPMG Hungary: KPMG Hungary is the Hungarian Big Four firm covering audit, tax and advisory services. It competes broadly with Grant Thornton Hungary for enterprise and cross-border engagements, with substantially larger resource depth.
• Deloitte Hungary: Deloitte Hungary is the Hungarian member of the Big Four, offering the full range of audit, tax, consulting, and advisory services. It is a broader incumbent that competes with Grant Thornton Hungary for large, complex and cross-border mandates.
• EY Hungary: EY Hungary is the local member of the Big Four, providing audit, tax, transaction advisory and consulting services. It is an incumbent competitor especially active in the same large-enterprise and multinational client base as Grant Thornton Hungary.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks5 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCrVaDxF5sZPelUSawplt6KQ
• Facebookfacebook.com/grantthorntonhungary.karrier
• LinkedInlinkedin.com/company/grant-thornton-hungary

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Subsidiaries5 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 Hungary