IoT Week is an annual event organized by the IoT Forum since 2011. The IoT Week conference gathers industry and academia representatives from around the world. So far editions of the IoT Week were held, respectively, in Barcelona, Venice, Helsinki, London, Lisbon, Belgrade, Geneva and Bilbao.
The last edition attracted about 850 participants specialized in the IoT domain, including research centres, research projects, large industries, SMEs, developers, standards development organizations and policymakers, including the European Commission.  

Find more information about IoT Week and the program here: https://iotweek.org/