Kubernetes on bare metal. Deployed anywhere.

Every tenant gets dedicated physical servers: as a managed service from our German datacenter, or inside your own premises. Thanks to our open-source stack underneath, you prevent vendor lock-in either way.

Explore Managed Cloud

Explore On-Prem

Two ways to run it

Your cloud. Your choice of location.

Same platform, same tooling, same team behind it.

Provision in minutes as managed cloud solution or deploy within your own datacenter as on-prem deployment.

Managed Cloud

metalstack.cloud

We run it. You ship.

First production cluster live in under 10 minutes
Updates, monitoring and scaling handled for you
Dedicated servers per tenant. Nothing is shared
German datacenter, EU data residency
€100 starting credit, pay only for what you use

Private Cloud

metalstack.cloud On-Prem

Your datacenter. Your rules.

The full platform, installed on your hardware
Data never leaves your building or your jurisdiction
GPU-ready for AI training and inference
Open source underneath. No license traps
Rolled out and supported by the team that builds it

Talk to our team Learn more

Try On-Prem before you commit with our On-Prem Starter

A pre-configured appliance you rent: a production-grade private cloud pilot in your rack, without a migration project.

Learn more

Five arguments for both deployments

Cloud vs. On-Prem in comparison

Comparison of the two operating models
	metalstack.cloud	metalstack.cloud On-Prem
Who operates it	Our team, around the clock	Your team, backed by ours
Where it runs	Our German datacenter	Your datacenter, your jurisdiction
Time to first cluster	Under 10 minutes	A guided rollout, typically weeks
Hardware & data control	Dedicated servers per tenant	Total, down to the rack
Best for	Shipping fast, with sovereignty	Regulated, air-gapped or large deployments

Undecided? Start with our managed cloud offering and move workloads on-prem later if required.

Where metalstack.cloud excels

Made for workloads that can't live just anywhere

If your data, your regulator or your economics say “not on a hyperscaler”, one of these paths probably looks familiar.

Sovereign cloud alternative

Leave the hyperscalers without giving up managed comfort.

VMware replatforming

Exit rising license costs without trading one dependency for another.

Regulated & KRITIS

Compliance by architecture: physical separation, German operation, full auditability.

AI on your own GPUs

Train and serve models where your data already lives: on dedicated hardware.

High-performance databases

Bare-metal I/O with no noisy neighbors and no virtualization tax.

Security workloads

SIEM and sensitive tooling on physically isolated infrastructure.

Technology stack

Openly developed. Proven in production.

Both operating models run on metal-stack, our open-source bare-metal stack born inside the IT provider of a major German banking group. There is no black box between you and your infrastructure: every line that provisions your servers is public, auditable, and yours to keep.

Open source, top to bottom

Provisioning, networking, lifecycle. The entire stack is on GitHub.

API-first

Control everything via programmatic api access.

Sovereignty

Thanks to the open-source stack and in-house operations, switching platforms is possible at any time.

metal-stack on GitHub

metalstack.cloud

Managed Kubernetes as a service

metalstack.cloud On-Prem

The platform in your datacenter

same stack · same API · same tooling

metal-stack

Kubernetes layer

Gardener-orchestrated clusters on bare metal

gardener-extension-provider-metal metal-ccm firewall-controller-manager csi-driver-lvm

Bare-metal control plane

Metal-as-a-Service API

metal-apiserver tenant-apiserver go-ipam metalctl

Provisioning & networking

Inside each datacenter partition

metal-hammer metal-core metal-bmc pixiecore

Physical layer

Commodity hardware, BGP routing to the host

bare-metal servers GPU nodes leaf/spine switches firewalls

Security and compliance you can rely on

Trust by design

metalstack.cloud is built on metal-stack, an open-source platform originally developed for regulated financial institutions with strict security and compliance requirements. Every layer is designed for transparency, auditability, and control — from architecture to operations. The result is a cloud environment organizations can trust to run enterprise-grade container workloads securely, reliably, and with consistently high performance.