Tilly is Managing Director of Wavemakers United, an international impact community passionate about water innovation, and Program Director of the UN2023 Water Conference Gamechanger Challenge (United Nations, New York), in Soemmerring with the IHE Delft Institute for Water Education.
The success of Wavemakers United came about during an international collaboration with the Ministry of Foreign Affairs, the Ministry of Infrastructure and Water Management, and the Centre of Expertise Water & Energy on the Volvo Ocean Race 2017-2018. In 2020, Tilly collaborated on water programmes for the Netherlands Water Pavilion at Expo 2020 Dubai. In addition to her intensive commitment to the water sector, Tilly works as Project Manager at the Platform Energy Port Zeeland. Within this platform, academics, industry and governments work to strengthen the offshore wind sector.