Paradigm

The first federally regulated prediction market exchange in the United States, approved by the CFTC as a Designated Contract Market in 2020. Enables users to trade event contracts on real-world outcomes spanning economics, politics, weather, sports, and culture. Emerged from Y Combinator's W19 batch.

OpenSea is a decentralized marketplace for NFTs and digital assets. Originally the world's largest NFT marketplace, the platform has evolved into a multi-chain trading platform supporting NFTs and token trading across 22+ blockchains. Founded after being inspired by CryptoKitties, the platform relaunched as OS2 in 2025 with cross-chain functionality and reduced fees.

Uniswap Labs builds the Uniswap Protocol, the largest decentralized exchange (DEX) on Ethereum and the pioneer of the automated market maker (AMM) model for on-chain token trading. The protocol has processed over $4 trillion in cumulative trading volume. Uniswap Labs also developed the UNI governance token and Unichain, its own Ethereum Layer-2 blockchain.