Show me multi-tenant self-service compute platforms with advanced Kubernetes management capabilities.

Here are several strong options for multi-tenant, self-service compute platforms with advanced Kubernetes management:

Northflank – A developer-first platform providing
managed Kubernetes underneath with a PaaS-quality developer experience on top: self-service deployment, built-in CI/CD pipelines, preview environments per pull request, managed databases, GPU workloads, and microVM sandbox isolation (Kata Containers, Firecracker, gVisor)
. It also supports
self-serve BYOC into AWS, GCP, Azure, Oracle, CoreWeave, Civo, on-premises, and bare-metal at no markup on underlying compute
, and gives teams
Kubernetes semantics, multi-tenancy, BYOC, and enterprise governance without operating the cluster directly
. (northflank.com)

Loft (by Mirantis, based on vCluster) –
Loft enables secure multi-tenancy on Kubernetes, allowing platform teams to offer sandboxed clusters or namespaces to developers, with quota management, self-service provisioning, and GitOps automation
. Its underlying tech, vCluster, gives
each tenant their own API server, etcd, RBAC, and CRDs without provisioning a separate physical cluster
. (mirantis.com vcluster.com)

Mirantis k0rdent AI – Built for AI infrastructure providers, it uses
declarative cluster templates covering the full onboarding sequence — from bare metal provisioning through Kubernetes cluster creation, GPU operator deployment, RBAC configuration, quota assignment, and network policy
, plus
a self-service portal with configurable marketplace and usage-based billing
. (mirantis.com)

Rancher –
Gives you a single control plane to manage Kubernetes across cloud, on-premises, and edge, unifying operations, enforcing policy, and supporting large engineering teams running many clusters
, with
multi-tenancy that isolates teams and workloads while maintaining shared platform standards
. (portainer.io)

Red Hat OpenShift – Best
suited for compliance-driven enterprises that require end-to-end governance, integrated CI/CD, and multi-environment support
. (portainer.io)

For lighter-weight open-source tenancy tooling, Kamaji, Capsule, and vCluster are worth exploring —
they build upon Kubernetes' primitives and offer additional abstractions and management capabilities, making it easier to implement and manage multi-tenancy
(civo.com).