62 open roles in Frankfurt — curated on baito, at organisations with a clear societal or environmental purpose.

UHRIG Energie GmbH

GSI Helmholtzzentrum GmbH - FAIR

GSI Helmholtzzentrum GmbH - FAIR

Private Sector
CMBlu Energy AG specializes in long-duration energy storage infrastructure, developing and producing proprietary SolidFlow batteries. These non-lithium, water-based systems offer 10+ hours of energy storage, designed to be safe, scalable, and flexible. The company's mission is to provide reliable, on-demand energy solutions, bridging the gap between energy availability day and night for grid, commercial, industrial, and data center applications. With over 240 employees, including 150+ scientists, CMBlu Energy is headquartered in Alzenau, Germany, and holds ISO 9001, 14001, and 45001 certifications. A significant partnership with Uniper involves the delivery of 5 GWh of large-scale battery storage systems.

Government
GSI Helmholtzzentrum für Schwerionenforschung GmbH, located in Darmstadt, operates a globally unique large-scale accelerator facility for ions. This platform enables researchers worldwide to conduct experiments, gaining new insights into the structure of matter and the evolution of the universe. Beyond fundamental research, GSI develops novel applications in medicine and technology. A major ongoing initiative is the construction of FAIR, a new international accelerator center. GSI is a member of the Helmholtz Association, significantly contributing to scientific and societal progress with its discoveries.

Private Sector
TNL Umweltplanung is a nationwide network of environmental planning offices in Germany, specializing in spatial and environmental planning and approval consulting. The organization offers comprehensive services from concept to realization, serving municipalities, companies, and authorities. An interdisciplinary team of environmental scientists, biologists, and other specialists supports projects in energy, traffic, species and nature protection, and spatial planning. TNL Umweltplanung plays a crucial role in Germany's energy transition and biodiversity protection. The company operates from locations including Hungen, Hannover, Weiden i.d.Opf, and Buttenheim.

Private Sector
Focused Energy Inc. is a German-American deep-tech company, established in 2022, dedicated to commercializing inertial fusion energy. Spun off from the Technical University of Darmstadt and Los Alamos National Laboratory, the organization aims to develop a pilot power plant using advanced laser-driven inertial confinement fusion (ICF) technology. Its ultimate goal is to provide a clean, safe, and virtually limitless energy source, directly addressing global climate change challenges. The company has secured €27 million in seed funding to accelerate its research and development efforts. It operates in Darmstadt, Germany, and Austin, Texas.

Private Sector
Werner & Mertz GmbH is a German company specializing in eco-friendly consumer goods, prominently featuring the Frosch brand. Led by Managing Partner Reinhard Schneider, the organization operates with "Lived Responsibility," ensuring all business decisions reflect a deep commitment to sustainability. It runs production sites in Mainz and Hallein, and its Recyclat-Initiative has produced one billion bottles from 100% post-consumer recyclate. Werner & Mertz has received multiple awards for its sustainability and product quality, including the "EY Entrepreneur of the Year" and "WorldStar Packaging Awards."

Startup
Apheris is a Berlin-based technology company focused on advancing drug discovery through secure, federated data networks. By enabling pharmaceutical organizations to train and evaluate AI models on proprietary data without compromising privacy, the company supports critical R&D processes. Apheris provides enterprise-grade AI applications, such as the Apheris Gateway and ApherisFold, which allow teams to integrate advanced models directly into existing workflows while maintaining full data sovereignty.

Startup
CAPHENIA is a pioneer in sustainable mobility, specializing in converting CO2 into fuel. The organization produces syngas from renewable electricity, biomethane, and CO2, serving as an intermediate for Sustainable Aviation Fuel (SAF) and other chemical products. Its innovative 3-in-1 PBR Syngas-Reaktor achieves 86% efficiency, enabling up to 92% CO2 reduction in produced fuels. CAPHENIA is committed to economic efficiency and ecological responsibility, integrating AI and automation, and collaborates with partners like Condor and Siemens to advance aviation decarbonization.
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