Cornerstone Danube is the bilingual professional services firm that helps American businesses operate in Europe and European businesses operate in America. Senior advisors. Modern technology. The judgment that comes from three decades of operating experience.
Begin a conversation →We have built Cornerstone Danube around five integrated service lines that cover the financial life of a cross border business, from the routine work of monthly compliance to the high stakes moments of investigation, transaction, and growth.
Monthly bookkeeping, NAV reporting, payroll, VAT, and year end financials, packaged into transparent monthly retainers that eliminate surprise invoices and align with how foreign owners actually want to be served.
Kft formation, GAAP and IFRS reconciliation, US expat tax filings, transaction advisory, and fractional CFO services for businesses operating across the United States and the European Union.
Fraud investigation, financial misconduct review, M&A post closing disputes, insurance claim quantification, and English language litigation support delivered to courtroom standards on either side of the Atlantic.
Coordinated access to experienced US and Hungarian law firms across healthcare, corporate, employment, real estate, and international matters. We manage the engagement, align the work product, and integrate legal output into your operational and financial strategy under one project lead.
Near shore back office support for US healthcare clients, combining experienced senior operators with embedded artificial intelligence to deliver revenue cycle, coding, transcription, and patient communication services at speed and quality legacy BPO cannot match.
"Senior judgment, multiplied by modern technology. Boutique attention at the pace the world now demands."
Big Four firms are too expensive and too generalist. Local Hungarian firms typically lack the English fluency and US tax depth that foreign owners need. The traditional outsourcing model trades quality for cost and produces neither.
We have built something different. A small team of experienced senior professionals, augmented by enterprise grade artificial intelligence, delivering partner level attention on every engagement at fees the mid market can actually afford. This is the modern boutique advisory model, and it is genuinely different from anything currently available in Budapest.
Native Hungarian, fluent English, with US operator credibility and EU citizenship at the leadership level. The cross border practice is not bolted on. It is the foundation.
Clients receive partner and senior manager attention on every deliverable. AI handles production. Humans handle judgment, relationships, and the moments that matter.
Packaged monthly retainers, fixed project fees, and turnaround times that match modern expectations. No surprise invoices. No drift. No hidden hours.
Cornerstone Danube is the European delivery hub of Cornerstone Business Solutions LLC, a United States advisory firm with offices in Las Vegas and Daytona Beach serving healthcare and professional services clients across the country. We launch with the brand, methodology, and operating discipline of an established parent organization, and we deliver it to the European market through a Budapest team built for the way business is actually done in 2026.
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