StarkWare is a ethereum layer-2 scaling protocol and one of main zk-rollup solutions. Starkware builds StarkNet( a permissionless decentralized ZK-Rollup) and StarkEx(a standalone permissioned Validity-Rollup）, both layer-2 scaling solutions for Ethereum using zero-knowledge rollup technology.

Akash Network is a distributed, peer-to-peer marketplace for cloud computing.

Omni is the interoperability layer for Ethereum. It will serve as the core infrastructure powering all modular applications on Ethereum.

Building the RPC base layer to power Web3 with Unstoppable Open Data.

Sei Network is a layer 1 blockchain built using the Cosmos SDK and Tendermint core, and features a built-in central limit orderbook (CLOB) module.

Taiko is a decentralized Ethereum-equivalent ZK-EVM and general-purpose ZK-Rollup. Its purpose is to allow developers and users of dApps developed for Ethereum L1 to be used on Taiko without any changes.