Christoph Ospelt began as a research assistant at the ‘Solar Energy and Building Physics Laboratory’ of the Federal Institute of Technology of Lausanne (EPFL). Later, his research at MIT focused on Life Cycle Assessment in the context of buildings and on the sustainability of buildings. Christoph Ospelt founded Lenum AG in Liechtenstein, and later partnered with EK Energiekonzepte in Zurich. His firm specializes on the sustainability of the built environment, energy efficiency, and the use of renewable energy. Both companies have assisted in designing many advanced prize-winning sustainable buildings, including Positive-energy Buildings, Minergie, Passive and Eco-Buildings.