Expertise that provides security.

How far may we accompany you?

Martin Schommer
Partner, certified public accountant under German law and certified tax consultant

Dr. Nicolas Günzler
Partner, certified tax consultant and attorney at law

Ralf Seifert
Partner, certified public accountant under German law and certified tax consultant

No matter what services you select from our portfolio, you can count on our high-level engagement and on our highly-qualified employees who dedicate themselves to the service of each client with the same passion.

Creativity, enthusiasm and the will to succeed are the strengths that help us to continuously and consistently improve our services for you, regardless of the size of the organisation or the extent of our mandate

The managing directors of Constantin sum it up like this
„Rapid response and flexibility are just two of the core skills that enable us to consistently provide the crucial added-value for our customers.“

Partner

Dr. Nicolas Günzler

Certified tax consultant and attorney at law. As Partner and director of Constantin, he advises clients as sparring partner in their finance function as well as in tax and corporate law. In addition to international tax law, his main areas of practice include transaction-related tax advisory, advisory on corporate tax law, tax compliance as well as organisational and operational process advisory.

Martin Schommer

Certified public accountant under German law and certified tax consultant. As founder and director of Constantin GmbH, he has many years of comprehensive experience in the support of group audits, the corporate tax consulting, the performance of special audits (for ex. fraud audit, Due Diligence), as well as in transaction advice.

Ralf Seifert

Certified public accountant under German law and certified tax consultant. As Partner and director of Constantin, he contributes his extensive experience in auditing and advising companies of various sizes, legal forms and industries – in particular medium-sized companies – to the benefit of our clients. In doing so, he uses his expertise from many years of work for a BiG4 firm as well as medium-sized auditing and consulting companies to meet your challenges.

Team Leader

Iris Engber-Kral

Qualified lawyer, certified tax lawyer, specialized in labor law, especially concerning the conception, negotiation and control of work contracts as well as termination agreements. She also advises our clients on all questions concerning income tax law and social security law.

Thomas Hainbuch

Diploma in Business Administration (“Diplom – Betriebswirt”) and certified tax consultant, specialized in tax optimization advice, support in tax audit, preparation of annual financial statements, tax balance sheets and tax declarations.

Miyuki Hanaoka

Degree in business administration (BA), certified tax consultant, head of the Japan desk.
Her main focus is on accounting and tax consulting for Japanese subsidiaries in Germany.
Another area of expertise is social security and tax advice for Japanese expatriates.

Anja Heitger-Schmidt

Diploma in Business Administration (“Diplom – Betriebswirt”), Certified public accountant under German law and certified tax consultant specialized in statutory and voluntary audits of enterprises and groups, special audits, enterprise valuations and transaction consulting as well as consulting in accounting matters for all legal forms (German GAAP, IFRS and tax law).

Christine Höfler

Diploma in Business Administration (“Diplom – Kauffrau”) and certified tax consultant, specialized in tax optimization advice and declarations as well as in the preparation of annual financial statements of groups, especially in the field of international tax law and group tax law.

Ingo Horstmann

Diploma in Business Administration (“Diplom – Kaufmann”), specialized in management consulting in the fields of accounting (German GAAP, IFRS and US-GAAP, group financial reporting), compliance, controlling, staff and organization as well as financing and restructuring of enterprises.

Jeannette Lindner

Diploma in Business Administration (“Diplom – Betriebswirtin”) and certified tax consultant with extensive experience in the tax consulting for national and international clients, specialized in the preparation of annual accounts according to German GAAP and tax laws and of tax declarations as well as in the tax consulting in regard of income tax and VAT questions.

Julian Lüling

As Master of Science in business administration and certified tax consultant, he specialises in providing a thorough tax consultation to subsidiaries of foreign groups, in particular in the support of tax audits and in the preparation of annual financial statements.

Christina Münzenthaler

Qualified lawyer and certified tax lawyer, specialized in VAT consulting especially in regard of international movements of goods and services as well as in the consulting of international companies in the design and documentation of transfer prices.

André Tentscher

Degree in business administration („Diplom-Kaufmann“), certified tax consultant. His task
area is tax-related support of national and international clients and particularly includes
advising on complex tax structuring, due diligence projects and company audits.