Founder and Managing Director of the Siemers & Co. Vermögensverwaltung GmbH
Founder and Managing Director of the Siemers & Co. Grundstücksgesellschaft mbH & Co KG
Managing Director of the Hanseatische Immobilien Börse GmbH Founder and CFO listed Hamburgische Immobilien Invest AG, realisation of the listing on the stock exchange
Indirect participation in the CWI Real Estate AG and accompanying the listing procedure
Participation in the Estavis AG and accompanying the listing procedure
Founder and Managing Director of the A & S Grundbesitz GmbH
Founder and Managing Director of the Investmentmakler Hamburg GmbH