
Espresso Systems builds foundational infrastructure for Ethereum rollups. It leads development of the Espresso Network, a purpose-built base layer providing rollups with fast, secure transaction finality and seamless cross-chain composability. Partners include Offchain Labs, Polygon, Caldera, ApeChain, Across, and Hyperlane. Backed by a16z, Greylock Partners, Sequoia Capital, and Polychain Capital with roughly $60M raised.