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Partners/Board

Our company is managed on the basis of the partners’ personal liability. The Management Board of our affiliated audit firm DR. WOELKE AG is also comprised of our partners.

Wilhelm Upheber

Wilhelm Upheber

Partner/Management
Diplom-Kaufmann
Auditor
Tax advisor

CONCEPTAX Siekmann, Janell und Partner mbB Hellerweg 28 32052 Herford Germany
Winfried Arbeiter

Winfried Arbeiter

Partner/Management
Diplom-Kaufmann
Auditor
Tax advisor

CONCEPTAX Siekmann, Janell und Partner mbB Hellerweg 28 32052 Herford Germany
Thomas Lilienthal

Thomas Lilienthal

Partner/Management
Diplom-Kaufmann
Auditor
Tax advisor

CONCEPTAX Siekmann, Janell und Partner mbB Hellerweg 28 32052 Herford Germany
Daniel Upheber

Daniel Upheber

Partner/Management
Diplom-Kaufmann
Master of Science (M.Sc.)
Auditor
Tax advisor

CONCEPTAX Siekmann, Janell und Partner mbB Hellerweg 28 32052 Herford Germany
Bernhard Kaune

Bernhard Kaune

Partner
Attorney
Tax advisor
Tax law specialist

CONCEPTAX Siekmann, Janell und Partner mbB Hellerweg 28 32052 Herford Germany
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