Add guides to use Flux in the enterprise

content/en/flux/guides/scaling-flux.md

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+---
+title: "Enterprise best practices"
+linkTitle: "Reconnemdations for using Flux by large, regulated companies"
+description: "What features does Flux offer to support very large, regulated cluster-deployments"
+weight: 15
+---
+
+This guide presents you ways how Flux supports GitOps deployment practices at scale
+
+## Use OCIRepository as a manifest source
+
+While GitOps has `git` in its name, in reality it does not require `git` to work, and storing manifests in an OCI registry has several advantages over Git storage.
+
+- Registries are designed to have very high availability and support large scale pull operations
+- Registries might be more accessible for your cluster than your SCM because of networking restrictions
+- Pushing to a registry can help with compliance for regulated industries as the "push" step can be made manual
+- You can save network bandwidth and memory by creating small OCI containers to store manifests, avoiding the pulling of a larger git repository into the cluster
+- Registries might have additional features like scanners that look only at the content meant to be deployed, not all your repository
+- As containers can be signed, Flux can check their provenance at deploy time
+
+## Vertical scaling
+
+When Flux is managing hundreds of applications that are deployed multiple times per day, cluster admins can fine tune the Flux controller at bootstrap time. 
+We have [dedicated documentation on configuring vertical scaling with Flux](../installation/configuration/vertical-scaling.md).
+
+## Horizontal scaling
+
+When Flux is managing tens of thousands of applications, it is advised to adopt a sharding strategy to spread the load between multiple instances of Flux controllers.
+To enable horizontal scaling, each controller can be deployed multiple times with a unique label selector which is used as the sharding key.
+
+We have [dedicated documentation on configuring horizontal scaling with Flux](../installation/configuration/horizontal-scaling.md).
+
+## Supply-chain security
+
+When using [OciRepository](../components/source/ocirepositories.md#verification) or ([Helm fetched from an OCI registry](../components/source/helmcharts/#verification)), Flux offers container signature verification at deploy time.
+
+## Consultancy
+
+In the end, it might still be intimidating to not only adopt a best in class GitOps tool, but do it at the enterprise scale. 
+If the documentation and community support can not answer all your questions, we recommend taking professional consultancy services.
+The following is a non-comprehensive list of companies offering such services:
+
+- [ControlPlane]([url](https://control-plane.io/)) (the primary sponsor of FluxCD)
+
+(To add your services here, please, open a PR)