Web Summit is an annual technology conference held in Lisbon, Portugal, considered the largest tech event in the world.Founded in 2009, by Paddy Cosgrave, David Kelly and Daire Hickey, Web Summit was originally held in Dublin, Ireland, until 2016, when it moved permanently to Lisbon. Web Summit has been described as the most important tech event in the world and has been noted for its overly aggressive marketing. Web Summit runs events throughout the world including F.ounders, RISE Conference in Hong Kong, Collision in Toronto, SURGE in Bangalore and MoneyConf in Dublin.