Lieselotte is a founder of NAZAVA, a private company based in Bandung, Indonesia. They have developed and promoted water filter for household use since 2009. Their products are also exported to other countries in Asia and Africa and provide health benefits to more than 400,000 people. NAZAVA won some prestigious awards, such as the National Energy Globe Award for Indonesia 2017, the 2016 Ashden Award for Sustainable Energy and Water, and the Top Price in 2013 Tech Awards.