Bootstrapped · Energy · Leuven, Belgium · Founded 2021 · 8–12 employees
Extraqt is a Leuven-based engineering startup that develops thermal models and digital twins of surface water bodies to unlock aquathermal energy as a sustainable source of heat and cooling for buildings and infrastructure; it bridges scientific research with real-world installations, guiding masterplans and operational projects that use rivers, lakes and canals to supply renewable thermal energy. Founded in 2021 by KU Leuven alumni and active in both consultancy and implementation support, Extraqt has won local innovation awards and contributes to early Belgian aquathermy deployments in residential and heritage projects.
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