The Policy Enforcement Package installs either the Open Policy Agent Gatekeeper [Operator](https://kubernetes.io/docs/concepts/extend-kubernetes/operator/) or Kyverno.
| Open Policy Agent Gatekeeper | Policy Enforcement (Core App) | Apache License 2.0 (Free/OSS) | *[Styra](https://www.openpolicyagent.org/support) is the original creator of OPA and can offer commercial support. |
| Kyverno | Policy Enforcement (Core App) | Apache License 2.0 (Free/OSS) | * Kyverno is a fully open-source product, however there are [multiple companies](https://kyverno.io/support/) which provide paid support services for it. |
| Istio Controlplane, Istio Operator, and Kiali | Service Mesh, Operator, and Service Mesh Dashboard (Core App) | Apache License 2.0 (Free/OSS) | *[Tetrate](https://www.tetrate.io/) is an Istio Vendor that can offer commercial support. |