PegaSys (Protocol Engineering Groups and Systems) is a 50-person team dedicated to enterprise grade blockchain at ConsenSys. It is building Ethereum tech for the public-chain community and leading enterprises focused on privacy, permissioning, scalability, and other features to make Ethereum production-ready.
Pegasys develop open-source software, and are researching next-generation solutions like sidechains and sharding.
Some of the great solutions developed by pegasys are: Pantheon: An Apache 2.0 licensed Ethereum client written in Java. Pantheon is public chain compatible, with a more modular architecture and roadmap to add privacy, permissioning, and new consensus algorithms. Hobbits (In progress): Hobbits is a lightweight wire protocol for ETH 2.0 network testing purposes.