Spectrum Protocol

Pontem is a product development studio committed to promoting global financial inclusion through blockchain technology. In partnership with Aptos, they are building foundational decentralized applications (dApps) and other infrastructure to facilitate the adoption of Aptos's Layer 1. This includes development tooling, Ethereum Virtual Machines (EVMs), Automated Market Makers (AMMs), and more.

Wing Finance is a credit-based, cross-chain DeFi platform. The content from this URL could not be retrieved, so I'm unable to provide a detailed introduction.

Ferum is an on-chain order book on Aptos that stands out for its developer-friendly features. It provides a platform that is easy to navigate and use, making it an ideal choice for developers working with Aptos.