Ethereum was founded by Vitalik Buterin. Buterin is a programmer and blockchain researcher who first became interested in cryptocurrencies while working on Bitcoin.
He saw the potential of blockchain technology to do more than just facilitate financial transactions, and proposed the development of a new platform that would allow for the creation of decentralized applications.
This idea eventually became Ethereum, and Buterin has played a key role in its development and growth.
Vitalik Buterin is currently the lead researcher and face of the Ethereum project, and continues to work on improving the platform and expanding its capabilities.