Input Output Global (IOHK)
Input Output Global (IOG), formerly known as Input Output Hong Kong (IOHK), is one of the...

ChainSafe builds open source, protocol-agnostic infrastructure and tools to empower developers and accelerate adoption of decentralization and Web3. As expert builders and proven operators, ChainSafe keeps networks running reliably and ensures their long-term resilience. The company develops critical protocol implementations including Lodestar (Ethereum consensus), Forest (Filecoin), and Gossamer (Polkadot), while providing comprehensive infrastructure services and co-development support for blockchain ecosystems.
Build and maintain blockchain protocols with comprehensive services including strategy assessment, implementation specifications, cryptography, bridge integrations, and protocol engineering. ChainSafe's protocol teams are made up of experts who have long contributed to major ecosystems.
Power decentralization with all core services necessary for protocol development including RPC endpoints, staking infrastructure, testnets, observability tools, and operational support ensuring networks run reliably at scale.
Help teams navigate complex builds from design to deployment through co-development partnerships, strategic guidance, architecture refinement, and launching systems that scale. Services bridge the gap between concept and production-ready infrastructure.
Lodestar: Ethereum consensus client implementation Forest: Rust implementation of Filecoin protocol offering fast performance with minimal hardware requirements, including FVM development and native actors Gossamer: Polkadot protocol implementation Optimism Contributions: Active development on Optimism ecosystem
Not limited to single ecosystem; proven capability building protocol implementations for Ethereum, Filecoin, Polkadot, and other major networks.
All development follows open source principles, contributing to shared Web3 infrastructure rather than proprietary solutions.
Teams composed of protocol engineering experts who have long contributed to ecosystems, including FVM development, FIP implementations, and native actors development for Filecoin.
Not just builders but proven operators ensuring networks run reliably and maintain long-term resilience through operational expertise.
Strategic partnerships with major protocols validate technical capability and ecosystem integration.
ChainSafe's protocol-agnostic approach and proven track record building critical infrastructure for Ethereum (Lodestar), Filecoin (Forest), and Polkadot (Gossamer) demonstrates capability to handle diverse protocol engineering challenges. The combination of protocol development expertise, comprehensive infrastructure services (RPC, staking, testnets, observability), and co-development support provides end-to-end capabilities for blockchain projects. Open source commitment ensures community benefit and transparency. Proven operator experience keeping networks running reliably at scale provides confidence in production deployment. ChainSafe's ecosystem partnerships and long-term contributions to major protocols validate their position as trusted infrastructure partner.
Comprehensive protocol development and engineering services for blockchain networks....
Comprehensive blockchain infrastructure services powering decentralization with all core...
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This partner has been verified by Web3Connect on 13 Dec 2025
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