Management
bulwiengesa is an independent company working in the areas of data, consulting and valuation. The management reviews all strategic decisions.
Management
Sven Carstensen MRICS
Dipl.-Kaufmann (FH), Real Estate Economist (EBS) (Business Administration & Real Estate)
Head
Division Lead
Company History
Today's bulwiengesa GmbH was renamed in 2025 from bulwiengesa AG and merged with 21st Real Estate GmbH in connection with this change. bulwiengesa became part of the Scout24 Group at the end of 2024.
The former bulwiengesa AG was formed in 2004 from the merger of two companies: the predecessor company founded by Hartmut Bulwien and gesa GmbH.
In 1983 Hartmut Bulwien founded the "Munich Institute for Market, Regional and Economic Research". In the beginning, the focus was on the housing market for property developers and investors; later municipalities and financing institutes were added. In the 1990s, professional consultations were carried out for the first time for the office segment and special properties. From the beginning, data was systematically collected and, from 1990, compiled in the RIWIS database. This led, among other things, to the unique long-term real estate index, which has also been used by the Deutsche Bundesbank since the 2000s.
Shortly after reunification, the then Bulwien & Partner GmbH opened an office in Berlin in 1991 in order to be present in the new federal states from there. In 1999, the company was transformed into Bulwien AG. Since then, and increasingly after the merger, leading employees have held the company's shares in partnership.
To cover the retail segment, Bulwien AG had been working with gesa GmbH since the mid-1990s. The "Gesellschaft für Standort- und Absatzberatung" was part of the Coop Group before it became independent. The core competence of gesa was the evaluation of retail locations through detailed analyses and turnover estimates. With the merger of the two companies in 2004, the Hamburg office was added.
In 2008, the branch office in Frankfurt followed in order to be closer to our clients from the financial sector. Since 2014, the specially founded subsidiary bulwiengesa appraisal GmbH has been carrying out valuations. In 2020, the Essen office was opened in the Ruhr region.