ZeroTier creates software-defined networking solutions that enable users to establish secure, private networks over the internet without needing traditional hardware like routers and switches. This technology allows businesses and individuals to connect devices and systems securely, regardless of their physical locations. ZeroTier serves a variety of clients, including small to medium-sized businesses, large enterprises, and tech enthusiasts, who often require management of complex networks across multiple locations such as remote offices and cloud environments. Unlike many competitors, ZeroTier operates on a freemium model, offering a basic version of their software for free while charging for advanced features and enterprise solutions. Their goal is to provide accessible and efficient networking solutions that enhance security and connectivity for all users.