ChainSafe

ChainSafe is a Canadian blockchain research and development firm that builds open-source, protocol-agnostic infrastructure and tools for the decentralized web. The company focuses on protocol engineering, cross-chain interoperability, and Web3 infrastructure services for developers and protocol teams.

Founded in 2017 in Toronto, Ontario, ChainSafe has grown to a team of over 120 engineers and researchers distributed across more than 30 countries. Core protocol contributions include Lodestar, an Ethereum consensus client; Gossamer, a Polkadot node implementation; and Forest, a Filecoin node written in Rust. The company also offers infrastructure services such as RPC endpoints, staking, IPFS gateways, and rollup tooling.

ChainSafe works across multiple blockchain ecosystems including Ethereum, Filecoin, Polkadot, Optimism, Celestia, and Aztec, making it a multi-chain engineering partner for protocol teams and organizations building decentralized systems.