As platform teams evolve, platforms extend beyond infrastructure to application services, cloud resource management, and middleware orchestration. Managing these distributed components across clusters and teams demands a unified, scalable approach. This session shows how to manage infrastructure, tenants, and application services entirely through Kubernetes by building a modular, multi-tenant, multi-control-plane platform. Attendees will learn to extend the Kubernetes API with Control Planes for distributed, tenant-aware infrastructure management. We’ll explore CNCF projects to create abstractions and automation, enabling platform teams to offer consistent services and self-service capabilities. Topics include multi-tenancy with in- and out-of-cluster isolation, unified APIs for control-plane orchestration, and avoiding common pitfalls in multi-control-plane management. By the end, attendees will have a roadmap for scalable platforms supporting centralized and tenant-managed services.