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Audit & Assurance
Final/other statutory audits
Further auditing and assurance services
Accounting advisory services
Corporate Social Responsibility
Company pension scheme actuary services
Forensics, risk and compliance
IT-Assurance & Governance
Tax & Legal Services
Tax Compliance Services
Value Added Tax
Income tax and international personnel deployment
M&A Tax and Legal Services
International Tax Services and Transfer Pricing
Healthcare and Social Services Sector
Customs, Excise Duties and Foreign Trade Law
Wealth Management and Business Succession
Tax Incentives for R&D
Business Services Outsourcing (BSO)
Accounting and financial accounting
Payroll accounting and personnel administration
Brexit – what next?
Country Desk: China, Russia, Holland/Germany, India
Tax compliance/risk management
Renewable Energy Sources Act – EEG
Technology and environmental consulting
The entire energy sector is subject to profound change. At our Industry Expertise Centre for the Energy Sector, experts from our three divisions – auditing, tax and consulting services – are available to help you with bespoke auditing and...
Banks are faced with ever faster change and growing regulatory, legal and accounting legislation requirements.
Constant changes in health and social services and the constantly increasing pressure to achieve profitability are making change a growing challenge for management. In our top-selling healthcare industry centre, we can offer you the support of a...
Trade and consumer goods
The boundaries between traditional and online trading are continuing to dissolve. Like in almost no other industry, process innovation drives opportunities in the industry: multichannel platforms, Web controlling, e-targeting and e-commerce...
Transport and logistics
Delivering goods to their destinations faster, more reliably and at a lower cost than competitors: This is what characterises transport quality and outstanding logistics. And international competition is decided by these factors.
Public companies and administration
Efficiency, effectiveness, transparency and citizen-friendliness are the main objectives of public authorities and their enterprises. To sustainably achieve this target, continuous observation of the current issues at all levels of decision-making...
Thanks to the relatively favourable and stable economic situation in Germany, the German real estate market is attracting massive investment from home and abroad. Our Industry Expertise Centre for Real Estate Services offers you tailor-made...
Foundations and non-profit organisations
The importance of non-profit organisations increases year by year. The non-profit sector – also known as the third sector, or civil society – employs around three million people and contributes between 4 and 5% of GDP.
Technology, media and telecommunications
Technology is the elementary innovation driver of the coming years. There are few sectors of the economy that are not affected. Cashless payment, self-driving cars, inter-networked goods and the Internet of Things are the immediate future.
Germany’s insurance industry constantly faces significant challenges. Private insurers are facing increasingly complex legal requirements and, in particular, regulatory requirements. On the other hand, the competitive situation gives rise to a permanent need to adapt the product portfolio and numerous internal processes.
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Good reasons for BDO
Facts and figures
Board of Directors and Supervisory Board
BDO Germany Alliance
Members of BDO Germany Alliance
Dr. Hanns-Christoph Rosien
Dr. Hanns-Christoph Rosien
Partner, Office Managing Partner Audit & Assurance
Lawyer, Public Auditor
+49 69 95941-429
International accounting as per IFRS and US GAAP
BDO-certified for US-GAAP, IFRS, § 319a HGB
Validation of risk management systems
Audit under section 404 of the Sarbanes-Oxley Act
Pharmaceutical and chemical industry
Professional memberships: Institute of Public Auditors in Germany; Chamber of Accountants institution under public law in Berlin; Rechtsanwaltskammer Frankfurt am Main (Chamber of lawyers), Frankfurter Forum für Rechnungslegung e.V. (Frankfurt forum for accounting); Johann-Wolfgang-Goethe-University, Frankfurt am Main; Ausschuss Wirtschafts- und Unternehmensberatungen (committee of economic and management consulting) of the Chamber of Commerce and Industry, Frankfurt;
Publications: ‘Fit for Global Accounting’ (1997); ‘Beck´sches Handbuch der Rechnungslegung’ (Beck’s manual of accounting, 2003); ‘Die erstmalige Anwendung der IFRS’ (Initial application of IFRS), Dashöfer-Verlag (2004); ‘Rechtshandbuch Projektfinanzierung und PPP’ (Legal manual project financing and PPP), Carl Heymanns Verlag, 2nd edition (2008); ‘Zukunftsorientiertes Krankenhausmanagement’ (Future-oriented hospital management); ‘Rechnungslegung nach IFRS’ (Accounting according to IFRS), Deutsche Krankenhaus Verlagsgesellschaft mbH (2009), Co-Author for Merkt/Probst/Fink HGB und IFRS. Ein themensystematischer Kommentar (2017)
Member of Supervisory Board ICS International Aktiengesellschaft Identcode-Systeme
Lectureship for IFRS at ISM International School of Management, Frankfurt am Main