Sienna Network is a privacy-first decentralized open source frontend that enables users to interact with swap and lending contracts on the Secret Network chain. It offers features like SiennaSwap, a privacy-first, cross-chain decentralized exchange, and SiennaLend, the first private lending protocol on Secret Network. Sienna Network aims to provide privacy by default and full decentralization, while also offering a governance token, Sienna, that allows token holders to decide over the entire platform. The company has received backing from various investors and has been featured in several media outlets.