This Research Note examines aedifion, a German HVAC optimization startup, its growth in 2025/2026, and external funding before highlighting their recent collaboration with two other DACH smart building startups, Optiml and Green Fusion. This article updates our previous coverage of aedifion in April 2025. Aedifion Profile aedifion GmbH is a startup based in Cologne, Germany, offering an AI-enabled platform for energy optimization in non-residential buildings. The firm was established in 2017, having been spun out of RWTH Aachen University’s Institute for Building Technology. aedifion technology enables plug-and-play connectivity, customized retrofitting measures, and autonomous, AI-powered control, ensuring the sustainable operation of buildings. According to the company, its software can reduce operating costs by 22% on average. 2025 Growth In February 2026, aedifion reported that it had achieved an 86% revenue increase in 2025 and a significant expansion of their customer base to 113 companies. The company currently reports over 600 non-residential buildings under management with a […]
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