DeFi companies develop decentralized finance platforms that operate without banks or traditional intermediaries. They offer services like lending, borrowing, staking, and yield farming on blockchain networks like Ethereum and Polygon. These companies build transparent, permissionless systems powered by smart contracts, enabling global access to financial tools. With innovation at their core, DeFi firms drive financial inclusion, reduce costs, and increase transaction speed. They often support token creation, liquidity pools, and governance mechanisms, empowering users with control over their assets in a decentralized financial ecosystem.