Prysmatic Labs

Prysmatic Labs is a blockchain infrastructure company founded in January 2018 by Raul Jordan and Preston Van Loon, with a focus on building core software for the Ethereum network. The company is best known for creating Prysm, an Ethereum consensus layer client written in Go that allows validators to participate in Ethereum’s proof-of-stake protocol.

Prysm went live on December 1, 2020, coinciding with the launch of the Ethereum Beacon Chain. It has since been deployed in support of major Ethereum upgrades including the Merge in September 2022, Capella, Dencun, and Pectra. The client powers a significant share of Ethereum’s consensus nodes and is used by major staking providers. Prysmatic Labs received early funding from the Ethereum Foundation and was acquired by Offchain Labs in October 2022.

Prysm supports validator key management, Beacon Chain synchronization, slashing protection, and integration with Ethereum execution layer clients. The client is available as open-source software and targets node operators, staking services, and Ethereum infrastructure providers.