ZeroTier

ZeroTier creates virtual Ethernet networks that link devices across the internet as if they were on the same local LAN, eliminating the need for physical hardware or complex VPN setups. The platform operates by installing a lightweight client on each endpoint, which then establishes secure, peer‑to‑peer connections managed by a centralized controller that enforces policies locally. This design allows clouds, edge devices, on‑prem servers, and IoT hardware to communicate directly and resiliently.

The software is aimed at teams and organizations that require secure, scalable connectivity for distributed infrastructure, including developers, IT operations, and enterprises in sectors such as defense, manufacturing, government, and finance. By providing a programmable networking layer, ZeroTier enables rapid deployment of private networks without reconfiguring existing network stacks or maintaining dedicated appliances.

A distinctive aspect of the offering is ZeroTier Quantum, an extension built for post‑quantum cryptography that meets emerging security standards and can operate in air‑gapped environments. The platform emphasizes endpoint‑enforced security, avoiding centralized chokepoints, and is already used by millions of devices worldwide.