Symbiosis is a cross-chain AMM DEX that pools together liquidity from different networks. It allows users to easily swap any token and move assets across different networks. Symbiosis offers various products, including swap, pools, zap, farming, and veSIS, along with an API and SDK for developers. The company has undergone security audits and has been covered in media outlets. Symbiosis aims to provide decentralized cross-chain swaps and liquidity management for users.