Hamburg-based family office

Kontora is a Hamburg-based multi-family office providing integrated wealth management, including strategic asset allocation, investment screening, and financial reporting for complex assets. The firm manages and advises approximately €14 billion ($15 billion) in assets for ultra-high-net-worth families, entrepreneurs, foundations, and institutions, primarily in Germany and Austria. It offers family office, investment office, and service office solutions designed to preserve and grow wealth across generations, with a focus on alternative strategies and educating the next generation. Kontora was recently acquired by AlTi Tiedemann Global in March 2025, with co-CEOs Stephan Buchwald and Dr. Patrick Maurenbrecher slated to take senior roles at AlTi and reinvest proceeds. Founded around 2005-2008 by Stephan Buchwald and Berndt Otternberg, Kontora has established itself as a key player in the European wealth management sector.