Web3 Foundation is a non-profit organization that focuses on the research and development of decentralized technologies, such as blockchain, for the advancement of the decentralized web or Web3. It was founded in Switzerland in 2018 with the goal of fostering the development of open-source technologies for the decentralized future, and to support and grow the decentralized web ecosystem. The organization mainly supports the development of the Polkadot blockchain network, which is designed to connect different blockchain networks and provide a scalable, interoperable, and secure environment for various decentralized applications and services.