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, operated by Ci, Web Summit was originally held in Dublin, Ireland, until 2016, when it moved permanently to Lisbon, Portugal. Web Summit has been described as the most important tech event in the world.
The conference's topics center on internet technology, emerging technologies, and venture capitalism. Speakers have included a mix of CEOs, subject-matter experts, celebrities, and politicians, such as Stephen Hawking, Elon Musk, Al Gore, and U.N Secretary-General António Guterres, among numerous others. Web Summit partners range from Fortune 500 companies to start-ups, with attendees representing all levels and sectors of the global high technology industry.