KitRUM is a custom software development company headquartered in Florida with offices in Ukraine, Mexico, and Israel. It builds React.js applications for startups and enterprises because React uses reusable components, utilizes a virtual DOM, and is lightweight. Despite this, React only handles UI and additional technologies are needed for full-stack development. KitRUM provides solutions like a loan application system, distributed ledger technology platform, smart home solution, and presentation creation tool using AI.