Witnet

SupraOracles

Supra provides decentralized oracle networks and cross-chain infrastructure to developers of blockchain applications for real-time data integration and smart contract automation.

Chronicle

Chronicle develops decentralized oracle infrastructure to provide verifiable and cost-efficient off-chain data feeds for blockchain applications and financial institutions.

RedStone Oracles

RedStone Oracles develops modular blockchain infrastructure providing real-time data feeds for decentralised finance protocols and institutional asset issuers across multiple networks.

API3

This company provides decentralised oracle middleware and data feeds for developers and decentralised applications to access external real-world information on blockchains.

Ora Labs

Ora Labs develops a verifiable oracle protocol to integrate artificial intelligence and complex computations into smart contracts for blockchain developers and decentralised applications.

Chainlink Labs

This company develops decentralized oracle networks that connect blockchains to external data and systems for financial institutions and software developers.

eOracle

This company develops a decentralised oracle network that connects off-chain data to smart contracts for developers of Ethereum-based decentralised applications.

Flare Network

The company develops a blockchain network with integrated data protocols for developers to build decentralised applications using external events and price feeds.