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Rüm Hart-Stiftung

A Hamburg-based family foundation that funds environmental education, nature conservation and biodiversity projects.

Last updated September 29, 2026

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Overview

The Rüm Hart-Stiftung (Stiftung Rüm Hart) is a German foundation established by the Janssen family of Hamburg. Its name is Low German for 'broad heart', and the foundation describes itself as a family initiative with a strong commitment to environmental and animal protection. The foundation is active in environmental education, nature conservation and biodiversity preservation, and it runs or supports projects that bring marine and coastal themes into schools, help sports clubs adopt environmentally friendly practices, and maintain biotopes where nature is left to develop on its own. The foundation's public profile is built around a small number of programme areas: environmental education, nature and species protection, and the promotion of biodiversity. Its website presents the family members — Malte, Andrea, Billy and Dirk — as the driving force behind the work, and frames the foundation's mission as a response to global pressures on nature, shrinking habitats and the climate crisis. The foundation also offers ways for the public to support its work, including donations and a newsletter. As a foundation rather than a commercial company, the Rüm Hart-Stiftung does not sell products or operate retail brands. Its 'offerings' are charitable programmes, grants and projects. It is registered in Germany and operates primarily in the German context, with a thematic focus on the North Sea and coastal environments implied by its marine education work. The foundation is private and family-led, and no stock listing or commercial parent company is associated with it.

History

The Rüm Hart-Stiftung is a German foundation founded by the Janssen family of Hamburg. Public information about the foundation is limited, but its own website describes it as a family project led by Malte, Andrea, Billy and Dirk Janssen, who share a strong commitment to environmental and animal protection. The foundation's name, 'Rüm Hart', is Low German for 'broad heart', reflecting its charitable orientation. In recent years the foundation has implemented numerous projects and campaigns in the fields of environmental education, nature conservation and environmental protection. Its stated goal is to preserve biodiversity and to inspire people to engage with nature. Among its activities, the foundation brings marine themes into schools, supports sports clubs in adopting environmentally friendly practices, and maintains biotopes where natural processes are allowed to unfold without interference. The foundation presents itself as a response to global environmental pressures: shrinking habitats, the climate crisis and the accelerating loss of biological diversity. It invites public support through donations and a newsletter. As of the available evidence, the foundation operates in Germany and is privately held by the founding family. No commercial products, stock listing or corporate parent are associated with it.

Products and positioning

A family-run German foundation focused on environmental education, nature conservation and biodiversity.

Product categories. Environmental education programmes · Nature and species conservation projects · Biotope maintenance · Support for sports clubs on environmental protection

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