Private Cloud

A cloud computing model that offers a proprietary environment dedicated to a single business entity.

A private cloud is a cloud computing environment dedicated exclusively to a single organization. Unlike public clouds, where resources are shared among multiple tenants, private cloud infrastructure is provisioned for the sole use of one organization, either hosted on-premises in the organization's own data center or by a third-party provider.

Private clouds offer greater control over security, compliance, and customization compared to public clouds. They are commonly chosen by organizations in regulated industries (such as healthcare, finance, and government) that have strict data residency or compliance requirements. Technologies like OpenStack, VMware vSphere, and Azure Stack enable organizations to build private cloud environments.

In API architectures, private clouds may host sensitive backend services that sit behind an API gateway. A common hybrid pattern uses a public-facing API gateway (deployed on a public cloud or edge network) to handle external traffic, while routing authenticated requests to services running on a private cloud. This approach provides the performance benefits of edge deployment while keeping sensitive data and processing within a controlled environment.