Kakarot is a zkEVM written in Cairo. It aims to allow users to leverage the scaling benefits of validity rollups while maintaining compatibility with the Ethereum ecosystem. Therefore, Kakarot can be used to run Ethereum smart contracts on Starknet.
STIX is building the leading OTC platform for the digital asset secondary markets. Their mission is to provide a seamless and compliant trading experience for institutional clients and UHNWIs. The platform will focus on facilitating illiquid token transactions OTC and assisting in direct equity sales of industry-leading crypto unicorns.
Linera is a blockchain protocol designed with low-latency applications in mind. The project draws from academic research initiated at Facebook/Novi, such as the FastPay protocol and the Zef protocol (slides).