Docker

Docker builds tooling for containers — isolated environments that bundle an application with all its dependencies so it runs consistently regardless of the target system. Its core product, Docker Desktop, covers the full local development loop, complemented by Docker Hub as a container image registry and Docker Scout for software supply-chain security scanning.

With MCP Gateway, Docker extended its container expertise to AI agents: it connects and manages MCP servers centrally and was released as an open-source solution. Docker also offers Sandboxes, isolated microVM environments for agent sessions, plus an AI governance console that unifies sandbox and MCP access policies with identity-bound audit logs.

The business model is tiered: Docker Personal is free, with Pro, Team, and Business plans above it. According to the company, 91% of Fortune 100 companies use Docker, with more than 20 million developers and over 20 billion monthly pulls from Docker Hub.

For security-critical environments, Docker also offers Hardened Images: minimal, signed, and continuously patched container images and MCP servers, secured to the SLSA Level 3 supply-chain standard. Docker Build Cloud provides distributed build infrastructure so that even demanding images can be built without local compute load.

Docker was introduced in 2013 by Solomon Hykes and brought container virtualization to a broad developer audience, even though the underlying Linux container technology already existed beforehand. The Docker name has become so closely tied to containers that it's often used colloquially as a synonym for the technology itself.