RITTERWALD lays the groundwork for the integration of Heinrich Bossert Immobilien into PHM
As part of the PHM Group’s growth strategy in Germany, RITTERWALD identified the property services provider Heinrich Bossert Immobilien as a suitable partner.

We are doubly proud: For the second time in a row, Handelsblatt has awarded us Best Consultants in the Real Estate sector in 2024. What a confirmation of our work! Thanks to all our clients and our strong team!
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Jobs at RITTERWALDEnergy-efficient real estate, crisis-proof energy supply, ecological power generation: We are working on the biggest lever for a successful energy transition. After all, the building sector is still responsible for around one-third of CO2 emissions.
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About the labelOur towns can get smarter: We advise companies in the housing and energy industries on the design and implementation of Smart City projects.
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In June 2026, the south-west German housing cooperative FLÜWO will begin a long-term partnership with the family-run company Hecon to provide billing and and submetering services for its 10,500 flats
RITTERWALD Management Consulting and its affiliated investment boutique HYSTAKE Investment Partners are expected to move into new office space in the tower section of the P1 project at Passauer Straße 1 in City West in December 2026. (Visualisation: © Alt/Shift)
With Dr Gloßner on board, RITTERWALD is expanding its expertise in consulting, particularly in portfolio and fund management for real estate companies.
All RITTERWALD clients are premium clients in our view.
We appreciate the time we spend with them and we can always be reached directly and personally – beyond the end of a successfully completed project.
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