
Stackup is a suite of open-source developer tools for building user-friendly blockchain products. It starts with ERC-4337 infrastructure.
Protocol Labs is an open-source research, development, and deployment laboratory. It's the company behind IPFS, Filecoin, libp2p, and many more.
[Acquired] Dharma is the only Ethereum wallet capable of seamlessly moving money between any US bank account and decentralized exchanges like Uniswap.