The Cardano Summit is organized by the Cardano Foundation. The 2022 edition takes place between November 19 - 21, in Lausanne, Switzerland.
The Cardano Summit is the only "official" summit, supported by both the Cardano Foundation and IOG.
The inaugural, 2020 edition of the Cardano Summit was a virtual event and since then these summits have had a large virtual element to them. The 2021 version featured a metaverse for people to utilize, and watch parties were organized around the globe by many members of the Cardano community members.
The 2021 Cardano Summit also featured in-person events across three continents. The 2022 Cardano Summit will only take place in Lausanne, but will be streamed live around the world.
Watch parties are being planned for 2022 and their organization and attendance is being promoted by the Cardano Foundation.
The 2022 edition of the summit has a much larger focus on those building in the Cardano ecosystem and day two of the Summit sees Cardano community members and builders take to the main stage for the first time!
Note: There was an IOHK Summit in 2019.