Hans Duisters is the owner and founder of Sioux. He is engaged in the daily management of Asian Sioux sites.
Erik van Rijswijk has been involved with Sioux as one of the founders since the first hour. He is in charge of the day-to-day management of the European Sioux offices together with Leon Giesen.
Leon Giesen is in charge of the daily management of the European Sioux offices together with Erik van Rijswijk.
