Best European Virtualization Software

Broadcom's repricing of VMware pushed an enormous number of European organisations into evaluating a migration for the first time in a decade. These platforms — from Austrian Proxmox to French XCP-ng and Spanish OpenNebula — are the alternatives that migration teams actually shortlist, and every one of them can be run entirely on infrastructure you control.

How we rank these tools — 4-step process
  1. 1
    European ownership, verified

    The company is headquartered and incorporated in the EU, EEA or Switzerland, and processes customer data in Europe. A US parent company disqualifies a tool from this page regardless of where its servers are.

  2. 2
    Category fit and hands-on review

    What the tool actually does, who it suits, and where it falls short — checked against the vendor’s own documentation, changelog and pricing page rather than its marketing copy.

  3. 3
    Compliance and pricing check

    GDPR posture, hosting location and the prices quoted on this page are verified against the vendor’s public pricing before publication, and re-checked when we revisit the category.

  4. 4
    Position on this page

    Placement on this page can be paid, and that can affect the order tools appear in. It never buys a listing: a tool that fails the checks above is not here at any price, and payment does not change the shortcomings we write about. A vendor can ask us to correct a factual error — not to remove a criticism.

Vendors can pay for visibility on this page. It never changes what an entry says about a product, including the criticism, and we earn nothing when you click through to a vendor. Paid placement can affect the order in which tools appear; it never affects whether a tool is listed. Editorial policy

14 European Virtualization Platforms

Proxmox VE

Open-source KVM and LXC virtualisation with built-in clustering

#1 of 14 in this category
Austria
KVM + LXC Ceph storage Built-in backup

XCP-ng

Open-source Xen hypervisor with Xen Orchestra management

#2 of 14 in this category
France
Xen hypervisor Xen Orchestra V2V migration

OpenNebula

Open-source cloud and edge virtualisation platform

#3 of 14 in this category
Spain
Multi-hypervisor Edge clusters Kubernetes

SUSE Virtualization

Hyperconverged infrastructure built on Kubernetes and KubeVirt

#4 of 14 in this category
Germany
HCI KubeVirt Enterprise support

Canonical OpenStack

Fully supported OpenStack private cloud

#5 of 14 in this category
United Kingdom
OpenStack Managed option Long-term support

Virtuozzo

Hyperconverged platform aimed at service providers

#6 of 14 in this category
Switzerland
HCI Multi-tenancy Provider tooling

StorPool

High-performance distributed storage for virtualised workloads

#7 of 14 in this category
Bulgaria
NVMe storage Low latency Proxmox integration

LINBIT

Vienna's DRBD and LINSTOR: open-source replicated storage that Proxmox lists as a native backend.

#8 of 14 in this category
Austria Open source free / support subscriptions from about $1,000 per 2 nodes/year
DRBD block-level replicationLINSTOR storage orchestration for Proxmox, Kubernetes and CloudStackSupport subscriptions from about $1,000 per 2 nodes/year

croit

Munich Ceph and Proxmox specialist adding a management GUI on top of unmodified open-source Ceph.

#9 of 14 in this category
Germany Ceph management subscription from about $600/month for 100TB
GUI for standard, unmodified Ceph clustersOfficial Proxmox Gold Partner for VMware migrationsCapacity-based subscription pricing

Acronis Cyber Infrastructure

Swiss HCI platform bundling KVM virtualization, storage and networking in one subscription.

#10 of 14 in this category
Switzerland Capacity-based subscription from 10TB to unlimited storage, quoted on request
KVM virtualization, storage and networking in one stackMulti-tenant hyperconverged infrastructureCapacity-based subscription, no per-VM fees

SoftIron HyperCloud

London appliance vendor: HyperCloud bundles hardware and software with no per-feature licensing.

#11 of 14 in this category
United Kingdom Hardware-and-software bundle, no extra feature licensing; pricing quoted on request
Stateless, self-configuring cluster nodesAll capabilities included, no feature licensingHardware and software sold as one appliance

Kubermatic Virtualization

Hamburg's KubeVirt platform running legacy VMs and containers on one Kubernetes control plane.

#12 of 14 in this category
Germany From €149/month (Essential) to €894/month (Enterprise); Enterprise Plus on request
Live VM migration on KubeVirtVMs and containers on one Kubernetes control planePublished per-server subscription pricing

ShapeBlue

London's largest Apache CloudStack integrator, employee-owned and focused on VMware exits.

#13 of 14 in this category
United Kingdom Support and consulting subscriptions, quoted on request
Apache CloudStack engineering and 24/7 support100% employee-ownedVMware-to-CloudStack migration projects

CloudSigma

Zug's white-label platform lets hosting partners run a sovereign cloud, revenue-shared.

#14 of 14 in this category
Switzerland Revenue-share for hosting partners; per-second utility billing for end users
White-label cloud platform for service providersRevenue-share pricing, no licence feePer-second utility billing for end customers

Key takeaways

  • Proxmox VE ranks #1 among the European virtualisation platforms in this directory, because Proxmox includes clustering, Ceph storage and backup at no cost and ships an ESXi import wizard for the migration.
  • This category exists in its current form because of one event: VMware's move to per-core subscription licensing after the Broadcom acquisition, which made staying expensive enough to justify migrating.
  • Proxmox and XCP-ng both offer documented migration paths from VMware — an ESXi import wizard and a V2V route respectively — which is the difference between a plan and an intention.
  • SUSE Virtualization runs VMs on Kubernetes through KubeVirt, so containers and virtual machines share one control plane, which is the right answer only if you already have real Kubernetes expertise.
  • StorPool is not a hypervisor: it is distributed NVMe storage with sub-millisecond latency that plugs into Proxmox, OpenNebula and OpenStack for workloads Ceph cannot serve.

European virtualisation platforms run virtual machines and containers on your own hardware, from vendors established in Europe — the software layer organisations are moving to after VMware's licensing changed under Broadcom.

European virtualization compared

European virtualization tools compared on position, country, entry price and best use
PositionToolEstablishedEntry priceBest for
#1 Proxmox VE Austria Free with no feature limits / support subscriptions from about €115 per CPU per year Organisations replacing VMware vSphere without per-core licensing
#2 XCP-ng France Free / Vates support from about €950 per host per year Teams wanting a Xen platform with a separate management plane and EU support
#3 OpenNebula Spain Free Community Edition / Enterprise subscription on request Distributed and edge infrastructure, or private cloud with real multi-tenancy
#4 SUSE Virtualization Germany Free (Harvester open source) / SUSE subscription pricing on request Enterprises already running Kubernetes that want VMs on the same platform
#5 Canonical OpenStack United Kingdom Free self-supported / Ubuntu Pro from about $75 per node per year / managed pricing on request Large private clouds where the OpenStack API surface is genuinely needed
#6 Virtuozzo Switzerland Subscription per node, quoted on request Hosting companies and cloud service providers reselling infrastructure
#7 StorPool Bulgaria Subscription per usable TB, quoted on request Database, VDI and other latency-sensitive workloads on European platforms
#8 LINBIT Austria LINSTOR and DRBD are open source and free; LINBIT SDS, HA, DR and VSAN support subscriptions start at about $1,000 per 2 nodes per year (Starter, community-style support), with Basic, Plus and Enterprise tiers adding SLA-backed response times, quoted on request Teams needing DRBD-replicated storage under Proxmox or Kubernetes
#9 croit Germany Ceph management platform subscription from about $600/month for 100TB, decreasing per-TB rate up to about $1,086/month at 1PB; separate Ceph support plans from about $500/month for 100TB; official Proxmox VE, Backup Server and Mail Gateway subscriptions resold at list price Teams wanting a supported, unmodified Ceph cluster under Proxmox
#10 Acronis Cyber Infrastructure Switzerland Subscription licensed by storage capacity, from 10TB up to unlimited storage, with pay-as-you-go options for service providers; quoted on request Organisations wanting VMs, storage and networking in one HCI package
#11 SoftIron HyperCloud United Kingdom Hardware-and-software appliance bundle with all HyperCloud capabilities included, no additional feature licences, per-usage fees or egress charges; pricing quoted on request Buyers wanting a private-cloud appliance with no per-feature licensing
#12 Kubermatic Virtualization Germany Essential from €149/month (up to 3 servers, community support) / Business from €294/month / Business Pro from €594/month / Enterprise from €894/month (24/7 support) / Enterprise Plus quoted on request Kubernetes-native teams wanting VMs and containers on one control plane
#13 ShapeBlue United Kingdom CloudStack support subscriptions, managed IaaS delivery and VMware-migration consulting, all quoted on request; no published price list Organisations building on Apache CloudStack rather than OpenStack
#14 CloudSigma Switzerland Revenue-share partnership pricing for service-provider partners, with no platform licence fee or minimum commitment; end users billed a utility rate per CPU, RAM, storage and bandwidth, billed to the second Hosting companies wanting to resell a European-built cloud stack

Every European virtualization tool reviewed

#1 Proxmox VE

Vienna, Austria Founded 2005 Free with no feature limits / support subscriptions from about €115 per CPU per year Free, fully featured

Best for: Organisations replacing VMware vSphere without per-core licensing

  • Operating company. Proxmox Server Solutions GmbH
  • Jurisdiction. EU (Austria)
  • Where the data sits. Your own infrastructure
  • Independent checks. GDPR
  • Source code. Open source
  • Replaces. VMware vSphere, Hyper-V, Citrix Hypervisor

Proxmox VE is where most VMware migrations land, and the reason is what it includes rather than what it costs. KVM for virtual machines and LXC for containers come with high-availability clustering, Ceph distributed storage, built-in backup, software-defined networking and a REST API — the three expensive components of a VMware estate, all present with no feature limits in the free version.

The ESXi import wizard is what turns intention into a project that completes. Combined with a large and active community and documentation deep enough that most problems are already answered publicly, it lowers the migration risk that stops these projects more often than technical limitations do.

Proxmox Server Solutions GmbH has operated from Vienna since 2005 under AGPLv3, with support subscriptions from about €115 per CPU per year — a different order of magnitude from VMware per-core pricing rather than a discount on the same model.

The honest gaps: the interface is less polished than vCenter and that is felt daily, Ceph needs careful sizing and network design to perform properly rather than merely work, and there is no NSX-equivalent networking layer, which has to be designed around.

What Proxmox VE does well

  • Clustering, Ceph and backup included at no cost
  • ESXi import wizard for VMware migration
  • AGPLv3 open source from an Austrian vendor since 2005
  • Support subscription far cheaper than VMware
  • Large, active community and deep documentation

Where Proxmox VE falls short

  • Interface less polished than vCenter
  • Ceph needs careful sizing and design
  • No direct NSX-equivalent networking
  • You operate the platform yourself

Standout feature. Clustering, distributed storage and backup included — the three things that made the VMware bill, at no licence cost.

#2 XCP-ng

Grenoble, France Founded 2018 Free / Vates support from about €950 per host per year Free

Best for: Teams wanting a Xen platform with a separate management plane and EU support

  • Operating company. Vates SAS
  • Jurisdiction. EU (France)
  • Where the data sits. Your own infrastructure
  • Independent checks. GDPR
  • Source code. Open source
  • Replaces. VMware vSphere, Citrix Hypervisor, Nutanix AHV

XCP-ng is the closest thing here to how a vSphere team already works, because it keeps the split people are used to: a hypervisor on the hosts and Xen Orchestra as a separate management plane, rather than managing each node directly. For an operations team migrating rather than rebuilding, that familiarity is worth more than a feature list.

Its backup and replication are unusually strong: continuous replication alongside conventional backup, live migration, and a REST API for automation — the capabilities that in a VMware estate typically arrive as separately licensed products.

The commercial support matters as much as the software. Vates SAS in Grenoble supports it from about €950 per host per year, which means a French company under EU jurisdiction is accountable for the platform — the answer to the procurement question that blocks open-source adoption in larger organisations.

A documented V2V path from VMware covers the migration. The trade-offs: a smaller community than Proxmox, the Xen Orchestra appliance is a paid convenience rather than free, and the Xen hardware ecosystem is narrower than KVM's.

What XCP-ng does well

  • Separate management plane, close to the vCenter model
  • Strong built-in backup and continuous replication
  • Commercial support from a French vendor
  • Documented V2V path from VMware
  • Fully open source

Where XCP-ng falls short

  • Smaller community than Proxmox
  • Xen Orchestra appliance is a paid convenience
  • Narrower hardware ecosystem than KVM
  • Support at about €950 per host per year

Standout feature. A separate management plane and a French vendor to call — the two things that make it feel like vSphere without the licence.

#3 OpenNebula

Madrid, Spain Founded 2008 Free Community Edition / Enterprise subscription on request Free Community Edition

Best for: Distributed and edge infrastructure, or private cloud with real multi-tenancy

  • Operating company. OpenNebula Systems
  • Jurisdiction. EU (Spain)
  • Where the data sits. Your own infrastructure
  • Independent checks. GDPR
  • Source code. Open source
  • Replaces. VMware vCloud, OpenStack, Nutanix

OpenNebula solves a problem the hypervisor managers do not attempt: running infrastructure across many sites from one control plane. Multi-site and edge clusters are orchestrated centrally across KVM, LXC and Firecracker, which is the actual shape of infrastructure for a telecoms operator, a retailer with sites, or anyone pushing compute towards where data is produced.

Multi-tenancy is built in from the start rather than layered on, so separate groups get their own quotas, networks and isolation without workarounds — the requirement that makes generic virtualisation awkward for anyone serving internal customers as tenants. Kubernetes support and hybrid cloud bursting extend the same control plane outwards.

Its strongest practical argument is that it is much lighter to operate than OpenStack while covering a similar conceptual space, which is why teams that evaluated OpenStack and recoiled tend to end up here. OpenNebula Systems has been in Madrid since 2008, Apache 2.0, with a free Community Edition and Enterprise subscriptions on request. VMware import is supported. It is overkill for a small single-site estate, the community is smaller than Proxmox's, and enterprise pricing is not published.

What OpenNebula does well

  • Genuine multi-site and edge orchestration
  • Multi-tenancy built in from the start
  • Much lighter to operate than OpenStack
  • Supports KVM, LXC and Firecracker
  • Apache 2.0 from a Spanish vendor since 2008

Where OpenNebula falls short

  • Overkill for a small single-site estate
  • Smaller community and ecosystem
  • Enterprise pricing not published
  • More conceptual overhead than a hypervisor manager

Standout feature. Many sites, one control plane — the private-cloud shape OpenStack promises without the operational weight.

#4 SUSE Virtualization

Nuremberg, Germany Founded 1992 Free (Harvester open source) / SUSE subscription pricing on request Free Harvester

Best for: Enterprises already running Kubernetes that want VMs on the same platform

  • Operating company. SUSE S.A.
  • Jurisdiction. EU (Germany)
  • Where the data sits. Your own infrastructure
  • Independent checks. GDPR
  • Source code. Open source
  • Replaces. VMware vSphere and vSAN, Nutanix

SUSE Virtualization asks a reasonable question: if your team already operates Kubernetes, why run a second platform for virtual machines? Built on Harvester with KubeVirt, it runs VMs as Kubernetes workloads, so containers and virtual machines share one control plane, one set of tools and one operational model.

It is hyperconverged by design, with Longhorn providing distributed storage across the nodes themselves, so there is no separate SAN to buy, operate and eventually replace. Rancher integration brings multi-cluster management, and live migration covers the operational basics you would expect from a VM platform.

SUSE S.A. has operated from Nuremberg since 1992 and brings enterprise support and a long track record to a young platform — which matters, because Harvester is the youngest thing in this category.

Free as open source under Apache 2.0 with SUSE subscription pricing on request. The honest limits: it requires real Kubernetes expertise rather than willingness to learn, the platform is young enough that its VM-centric features trail mature rivals, and if you are not already running Kubernetes this is the wrong reason to start.

What SUSE Virtualization does well

  • VMs and containers on one Kubernetes control plane
  • Hyperconverged with Longhorn — no separate SAN
  • Rancher integration for multi-cluster management
  • German vendor with enterprise support since 1992
  • Open source under Apache 2.0

Where SUSE Virtualization falls short

  • Requires real Kubernetes expertise
  • Youngest platform in this category
  • VM-centric features trail mature rivals
  • Wrong reason to adopt Kubernetes if you have not

Standout feature. One control plane for VMs and containers — if you already run Kubernetes, the second platform disappears.

#5 Canonical OpenStack

London, United Kingdom Founded 2004 Free self-supported / Ubuntu Pro from about $75 per node per year / managed pricing on request Free, self-supported

Best for: Large private clouds where the OpenStack API surface is genuinely needed

  • Operating company. Canonical Ltd
  • Jurisdiction. United Kingdom (adequacy decision, outside the EEA)
  • Where the data sits. Your own data centres
  • Independent checks. UK GDPR
  • Source code. Open source
  • Replaces. VMware vCloud, Red Hat OpenStack, AWS repatriation

Canonical OpenStack is the right answer to a narrower question than it appears, and Canonical is refreshingly direct about which. If you need OpenStack's full API surface — tenants, quotas, networks, images, volumes, orchestration consumed programmatically by other teams — nothing simpler substitutes. For an AWS repatriation needing comparable primitives, that is the requirement.

What Canonical adds is operability. Sunbeam simplifies deployment considerably against OpenStack's reputation, a ten-year support commitment per release addresses the lifecycle problem that makes long-lived private clouds painful, and Ceph integration and live migration cover the infrastructure basics.

The managed option is the genuinely distinctive part: Canonical operates the cloud in your data centres, which converts the OpenStack operations team you would otherwise need to hire into a subscription.

Ubuntu Pro runs from about $75 per node per year with managed pricing on request, and the software is Apache 2.0 with no per-core licensing. Canonical Ltd is London-based, so UK adequacy rather than EU establishment. It remains genuinely complex compared with a hypervisor manager, and it is overkill for a small estate.

What Canonical OpenStack does well

  • Full OpenStack API surface for programmatic consumption
  • Managed operations option — Canonical runs it for you
  • Ten-year support commitment per release
  • Sunbeam simplifies deployment considerably
  • Apache 2.0, no per-core licensing

Where Canonical OpenStack falls short

  • Genuinely complex next to a hypervisor manager
  • Overkill for small estates
  • UK rather than EU jurisdiction
  • Needs OpenStack skills unless managed

Standout feature. Canonical will run the cloud for you — the OpenStack team you would have had to hire, as a subscription instead.

#6 Virtuozzo

Schaffhausen, Switzerland Founded 1997 Subscription per node, quoted on request Contact sales

Best for: Hosting companies and cloud service providers reselling infrastructure

  • Operating company. Virtuozzo International GmbH
  • Jurisdiction. Switzerland (adequacy decision, outside the EEA)
  • Where the data sits. Your own infrastructure
  • Independent checks. GDPR-adequate
  • Source code. Closed source
  • Replaces. VMware Cloud Director, Nutanix, OpenStack

Virtuozzo is built for people selling infrastructure rather than consuming it, and every design decision follows from that. Multi-tenancy and metering are engineered for reselling — accounts, quotas, usage measurement and billing hooks — alongside a self-service portal so customers provision without a support ticket, which is what makes the economics of a hosting business work.

High container density is a margin lever rather than a technical detail: fitting more paying workloads on the same hardware goes directly to gross margin, which is why container virtualisation alongside KVM matters more here than in an enterprise estate. Integrated distributed storage removes the separate SAN, a DevOps PaaS layer adds a product to resell above raw VMs, and backup and VMware migration cover the operational side.

Virtuozzo International GmbH has been doing this since 1997 from Schaffhausen — nearly three decades in virtualisation, with OpenVZ as its open-source lineage — under Swiss jurisdiction with an EU adequacy decision. Pricing is a per-node subscription quoted on request. The limits are clear: it is the wrong fit for internal enterprise IT where none of the reselling machinery applies, pricing is not published, and it is only partially open source.

What Virtuozzo does well

  • Multi-tenancy and metering built for reselling
  • High container density improves margins directly
  • Integrated distributed storage, no separate SAN
  • Self-service portal and DevOps PaaS layer
  • Swiss jurisdiction, nearly three decades of experience

Where Virtuozzo falls short

  • Wrong fit for internal enterprise IT
  • Pricing not published
  • Only partially open source
  • Swiss adequacy rather than EEA jurisdiction

Standout feature. Metering, billing hooks and a self-service portal — the parts a hosting business needs and an enterprise never uses.

#7 StorPool

Sofia, Bulgaria Founded 2011 Subscription per usable TB, quoted on request Contact sales

Best for: Database, VDI and other latency-sensitive workloads on European platforms

  • Operating company. StorPool Storage
  • Jurisdiction. EU (Bulgaria)
  • Where the data sits. Your own infrastructure
  • Independent checks. GDPR
  • Source code. Closed source
  • Replaces. VMware vSAN, Ceph for latency-critical workloads, SAN arrays

StorPool is not a hypervisor and belongs in this category because of what it plugs into. It is distributed NVMe block storage with consistent sub-millisecond latency, and it exists for the workloads where Ceph is the constraint rather than the solution — databases where tail latency is what users feel, VDI where a slow disk is a slow desktop, anything where the ninety-ninth percentile matters more than the average.

Native drivers for Proxmox, OpenNebula, OpenStack and Kubernetes mean it slots under the European virtualisation stack rather than requiring a different platform above it, and it scales without disruption as capacity grows.

The unusual commercial element is that StorPool operates the storage for you — the vendor monitors, tunes and manages it on your hardware, which removes the specialist storage expertise that a high-performance distributed system otherwise demands.

StorPool Storage has run from Sofia since 2011 under EU jurisdiction, priced per usable TB on request. The trade-offs are real: it is commercial where Ceph is free, it requires NVMe drives and a well-specified network to deliver what it promises, and it is a proprietary single-vendor dependency.

What StorPool does well

  • Consistent sub-millisecond latency
  • The vendor operates the storage for you
  • Native drivers for Proxmox, OpenNebula, OpenStack and Kubernetes
  • Scales without disruption
  • Bulgarian vendor, EU jurisdiction

Where StorPool falls short

  • Commercial pricing against free Ceph
  • Requires NVMe and a well-specified network
  • Proprietary single-vendor dependency
  • Pricing quoted rather than published

Standout feature. The vendor runs the storage on your hardware — sub-millisecond latency without hiring a storage specialist.

#8 LINBIT

Vienna, Austria Founded 2001 LINSTOR and DRBD are open source and free; LINBIT SDS, HA, DR and VSAN support subscriptions start at about $1,000 per 2 nodes per year (Starter, community-style support), with Basic, Plus and Enterprise tiers adding SLA-backed response times, quoted on request Free and open source (DRBD, LINSTOR)

Best for: Teams needing DRBD-replicated storage under Proxmox or Kubernetes

  • Operating company. LINBIT HA-Solutions GmbH
  • Jurisdiction. EU (Austria)
  • Where the data sits. Your own infrastructure
  • Source code. Open source
  • Replaces. VMware vSAN, Ceph, SAN arrays

LINBIT makes DRBD, the block-level replication driver built into the Linux kernel, and LINSTOR, the orchestration layer that turns DRBD volumes into a storage pool Proxmox VE lists as a native backend alongside Ceph and ZFS.

For a cluster that wants synchronous replication without Ceph's operational weight, DRBD is the simpler alternative, and both DRBD and LINSTOR are open source rather than paid add-ons. LINBIT also supports Kubernetes and CloudStack directly, so the same replication layer follows a workload that later moves off a single hypervisor.

The commercial layer sits on top of free software rather than replacing it. LINBIT SDS, HA, DR and VSAN package the open-source core with certified binaries, cluster-wide management and a support contract, priced by cluster or node plus a per-terabyte fee.

The Starter tier begins at about $1,000 per two nodes per year with community-style support; Basic, Plus and Enterprise tiers add SLA-backed response times and are quoted on request. Running DRBD and LINSTOR unsupported remains a legitimate option for a team comfortable operating storage software itself.

LINBIT HA-Solutions GmbH has operated from Vienna since 2001, one of the older names in this category and older than most of the hypervisors it now plugs into. The honest limits: LINBIT sells a storage layer, not a hypervisor, so it only matters once Proxmox, CloudStack or Kubernetes is already the plan, and DRBD's replication model demands a well-specified network in the same way Ceph and StorPool do.

What LINBIT does well

  • Free and open source, no forced subscription
  • Native Proxmox VE storage backend
  • Also integrates with Kubernetes and CloudStack
  • Support from about $1,000 per 2 nodes/year
  • Two decades of DRBD development from Vienna

Where LINBIT falls short

  • Storage layer only, not a hypervisor
  • Needs a well-specified network like Ceph
  • Higher support tiers quoted on request
  • Smaller ecosystem than Ceph or StorPool

Standout feature. The open-source replication driver Proxmox itself lists as a native storage backend, free unless you want the support contract.

#9 croit

Munich, Germany Founded 2017 Ceph management platform subscription from about $600/month for 100TB, decreasing per-TB rate up to about $1,086/month at 1PB; separate Ceph support plans from about $500/month for 100TB; official Proxmox VE, Backup Server and Mail Gateway subscriptions resold at list price

Best for: Teams wanting a supported, unmodified Ceph cluster under Proxmox

  • Operating company. croit GmbH
  • Jurisdiction. EU (Germany)
  • Where the data sits. Your own infrastructure
  • Source code. Closed source
  • Replaces. VMware vSAN, Nutanix, raw unmanaged Ceph

croit sells a management layer for Ceph rather than a Ceph fork, which is the detail that matters most: the underlying cluster stays 100% open-source Ceph, so nothing about adopting croit locks a customer into a proprietary storage format. The web interface handles cluster bring-up, OSD and node management, monitoring and updates, cutting the time to a running cluster from days of command-line work to, by croit's own account, minutes.

As an official Proxmox Gold Partner, croit's second business is VMware-to-Proxmox migration itself: architecture design, a documented migration plan and managed support for the cut-over, on top of the storage layer Proxmox needs underneath it.

It also resells official Proxmox VE, Backup Server and Mail Gateway subscriptions directly. Pricing for the Ceph management platform is capacity-based, from about $600 a month for 100TB down to a lower per-terabyte rate near 1PB; separate Ceph support plans start near $500 a month for the same 100TB baseline.

croit GmbH has operated from Munich since its 2017 registration, under German and EU jurisdiction. The trade-offs: this is a management and migration layer rather than a from-scratch hypervisor platform, so it is worth choosing specifically for Ceph and Proxmox rather than as a general VMware exit, and capacity-based pricing means cost tracks storage growth rather than a flat subscription.

What croit does well

  • Unmodified, standard open-source Ceph underneath
  • Official Proxmox Gold Partner for VMware migrations
  • Cluster bring-up in minutes rather than days
  • Capacity-based pricing that scales with storage
  • German company under EU jurisdiction

Where croit falls short

  • Management layer, not a hypervisor of its own
  • Only useful once Ceph is the storage choice
  • Pricing rises with capacity rather than staying flat
  • Smaller company than the Ceph vendors it competes with

Standout feature. A GUI over standard Ceph plus an official Proxmox partnership — the migration project and the storage layer from one Munich vendor.

#10 Acronis Cyber Infrastructure

Schaffhausen, Switzerland Subscription licensed by storage capacity, from 10TB up to unlimited storage, with pay-as-you-go options for service providers; quoted on request

Best for: Organisations wanting VMs, storage and networking in one HCI package

  • Operating company. Acronis International GmbH
  • Jurisdiction. Switzerland (adequacy decision, outside the EEA)
  • Where the data sits. Your own infrastructure
  • Source code. Closed source
  • Replaces. VMware vSAN, Nutanix, separate backup and storage stacks

Acronis Cyber Infrastructure is hyperconverged rather than a hypervisor on its own: KVM-based virtualisation, software-defined block, file and object storage, and software-defined networking for tenant isolation, all in one deployable stack rather than three products stitched together. That combination targets the same VMware vSAN and Nutanix comparison Proxmox and SUSE Virtualization compete in, from a different angle — storage and virtualisation designed together from the start rather than a hypervisor with a storage plugin added later.

The licensing model is capacity-based rather than per-core or per-VM: subscriptions run from 10TB up to unlimited storage, with pay-as-you-go pricing available for service providers reselling capacity, and exact numbers are quoted on request. That is a meaningfully different arithmetic from VMware's per-core licensing, and closer to how StorPool or croit price than to how Proxmox or XCP-ng do.

Acronis International GmbH is based in Schaffhausen, Switzerland — the same canton as Virtuozzo, reflecting a shared corporate history between the two — under Swiss jurisdiction with an EU adequacy decision. Acronis is better known for backup and cyber protection than for virtualisation, and Cyber Infrastructure is the product where that heritage shows: disaster recovery and backup workloads are a natural fit, general-purpose VM hosting less so, and published pricing is absent entirely.

What Acronis Cyber Infrastructure does well

  • VMs, storage and networking in one HCI stack
  • Capacity-based licensing, not per-core
  • Strong fit for backup and disaster-recovery workloads
  • Multi-tenant isolation built in
  • Swiss jurisdiction, EU adequacy decision

Where Acronis Cyber Infrastructure falls short

  • No published pricing at all
  • Backup heritage shows more than general VM hosting
  • Proprietary rather than open source
  • Newer to pure virtualisation than the HCI specialists

Standout feature. Compute, storage and networking engineered together as one hyperconverged package, priced by capacity rather than by core.

#11 SoftIron HyperCloud

London, United Kingdom Founded 2012 Hardware-and-software appliance bundle with all HyperCloud capabilities included, no additional feature licences, per-usage fees or egress charges; pricing quoted on request

Best for: Buyers wanting a private-cloud appliance with no per-feature licensing

  • Operating company. SoftIron Ltd
  • Jurisdiction. United Kingdom (adequacy decision, outside the EEA)
  • Where the data sits. Your own infrastructure (appliance hardware)
  • Source code. Closed source
  • Replaces. VMware vSphere and vSAN, Nutanix

SoftIron HyperCloud is sold as a sealed appliance rather than software you install on your own hardware: stateless nodes that auto-configure from the cluster, distributed management with no single point of failure, and every capability included out of the box rather than gated behind a licence tier.

That is a different proposition from Proxmox or XCP-ng, which are software you run on hardware you choose — HyperCloud is hardware and software from one vendor, closer in spirit to a Nutanix appliance than to a DIY hypervisor stack.

The pricing philosophy is the headline feature: no additional feature licences, no per-usage fees and no egress charges once the appliance is bought, which is precisely the per-core, per-feature licensing model driving organisations out of VMware in the first place. Actual numbers are not published; SoftIron quotes based on the deployment.

SoftIron Ltd has operated from London since its 2012 incorporation, under UK jurisdiction with an adequacy decision covering data transfers. The trade-off for the plug-and-play appliance model is choice: buying HyperCloud means buying SoftIron's hardware as well as its software, which suits a buyer who wants one throat to choke over one who wants to keep existing servers, and there is no published price list to compare against a Proxmox or XCP-ng quote.

What SoftIron HyperCloud does well

  • All capabilities included, no feature licensing
  • Stateless nodes with no single point of failure
  • Hardware and software from one vendor
  • No per-usage or egress fees
  • UK company, adequacy-covered jurisdiction

Where SoftIron HyperCloud falls short

  • Hardware appliance, not software for your own servers
  • No published pricing
  • Locks you into SoftIron hardware
  • Younger virtualisation track record than the hypervisor specialists

Standout feature. Every capability included in the appliance price — the per-feature licensing VMware customers are fleeing, deliberately absent.

#12 Kubermatic Virtualization

Hamburg, Germany Founded 2016 Essential from €149/month (up to 3 servers, community support) / Business from €294/month / Business Pro from €594/month / Enterprise from €894/month (24/7 support) / Enterprise Plus quoted on request

Best for: Kubernetes-native teams wanting VMs and containers on one control plane

  • Operating company. Kubermatic GmbH
  • Jurisdiction. EU (Germany)
  • Where the data sits. Your own infrastructure
  • Independent checks. ISO 27001 and ISO 9001
  • Source code. Closed source
  • Replaces. VMware vSphere and vSAN, Nutanix

Kubermatic Virtualization runs virtual machines through KubeVirt on the same Kubernetes control plane Kubermatic already sells for containers, with Kube-OVN for networking and KubeOne for cluster provisioning underneath. It is the same architectural bet SUSE Virtualization makes with Harvester — VMs as Kubernetes workloads rather than a separate hypervisor stack — from a second German vendor, with live migration, automatic restart on host failure and a single management console across both workload types.

Kubermatic prices it directly rather than quoting on request for every tier: Essential starts at €149 a month for up to three servers with community support, Business from €294 with limited support tickets, Business Pro and Enterprise add unlimited and 24/7 support up to €894 a month, and Enterprise Plus — multi-tenancy, ten or more sockets, KubeLB integration — is quoted separately. That published ladder is unusual in this category, where most competitors quote everything on request.

Kubermatic GmbH has operated from Hamburg since 2016 (originally as Loodse), holds ISO 27001 and ISO 9001 certification, and markets the product explicitly at organisations reconsidering VMware after the Broadcom licensing change. The honest limit: this is Kubernetes-native virtualisation, so it rewards a team that already runs Kubernetes and penalises one that does not, in the same way SUSE Virtualization does — KubeVirt's VM feature set still trails a mature hypervisor's.

What Kubermatic Virtualization does well

  • Published pricing from €149/month, unusual in this category
  • VMs and containers on one Kubernetes control plane
  • Live migration and automatic host failover
  • ISO 27001 and ISO 9001 certified
  • German company, explicitly positioned as a VMware exit

Where Kubermatic Virtualization falls short

  • Rewards teams already running Kubernetes
  • KubeVirt trails mature hypervisors on VM features
  • Essential tier capped at three servers
  • Enterprise Plus pricing not published

Standout feature. A published price list starting at €149 a month, in a category where almost everyone else quotes on request.

#13 ShapeBlue

London, United Kingdom Founded 2011 CloudStack support subscriptions, managed IaaS delivery and VMware-migration consulting, all quoted on request; no published price list

Best for: Organisations building on Apache CloudStack rather than OpenStack

  • Operating company. Shape Blue Ltd
  • Jurisdiction. United Kingdom (adequacy decision, outside the EEA)
  • Where the data sits. Your own infrastructure or a ShapeBlue-managed deployment
  • Source code. Open source
  • Replaces. VMware vCloud Director, OpenStack, Nutanix

ShapeBlue is not a software vendor in the way Proxmox or SUSE are — Apache CloudStack is a foundation project nobody owns — but it is the largest independent integrator of it, and the closest thing CloudStack has to Canonical's role for OpenStack.

CloudStack itself is a full IaaS platform, the same conceptual space as OpenStack and OpenNebula, and ShapeBlue's pitch is that it is simpler to run at scale, which is why it underpins large service-provider clouds this category otherwise doesn't reach.

The commercial model is engineering, support and migration rather than a licensed product: CloudStack software development, second-to-fourth-line infrastructure support with P1 to P3 severity tiers, consulting, training and certification, and dedicated VMware-to-CloudStack migration work. None of it is priced publicly — every engagement is quoted, which puts ShapeBlue closer to Virtuozzo's or Acronis's opacity than to Kubermatic's published ladder.

Shape Blue Ltd has been UK-registered since 2011 and is structured as a 100% employee-owned company, an unusual ownership model in this category. The trade-off is the one that comes with any integrator: there is no product to trial, evaluating ShapeBlue means evaluating Apache CloudStack itself plus the specific engagement ShapeBlue proposes, and a buyer who wants a fixed licence fee should look elsewhere in this grid.

What ShapeBlue does well

  • Largest independent Apache CloudStack integrator
  • 100% employee-owned
  • Apache 2.0, no licensing cost for the software itself
  • Dedicated VMware-to-CloudStack migration practice
  • UK company since 2011

Where ShapeBlue falls short

  • No published pricing for support or engineering
  • Not a self-contained product like the rest of this grid
  • CloudStack has a smaller ecosystem than OpenStack
  • Evaluating it means evaluating an integrator, not software

Standout feature. The CloudStack specialist for a category otherwise built around OpenStack and OpenNebula — an entirely different open-source IaaS lineage.

#14 CloudSigma

Zug, Switzerland Founded 2009 Revenue-share partnership pricing for service-provider partners, with no platform licence fee or minimum commitment; end users billed a utility rate per CPU, RAM, storage and bandwidth, billed to the second

Best for: Hosting companies wanting to resell a European-built cloud stack

  • Operating company. CloudSigma AG
  • Jurisdiction. Switzerland (adequacy decision, outside the EEA)
  • Where the data sits. Depends on the operating partner's chosen region
  • Source code. Closed source
  • Replaces. AWS, Azure, VMware-based service-provider clouds

CloudSigma is the second vendor in this category, after Virtuozzo, aimed at people who resell infrastructure rather than run it internally — but the model is different again: instead of licensing software to install, CloudSigma runs the cloud stack itself and shares revenue with the partner whose brand it appears under. "Launch your own sovereign cloud in weeks" is the pitch, and it is a genuinely different answer to the VMware-exit question than anything else in this grid, because the partner never operates a hypervisor at all.

Pricing follows the same logic on both sides: no platform licence fee or minimum commitment for the partner, just a share of what the end customer pays, and end customers are billed a per-second, per-unit rate for CPU, RAM, storage and bandwidth with no bundled instance tiers to overpay for. Exact revenue-share terms are not published and depend on the partner's target market.

CloudSigma AG is registered in Zug, Switzerland (CHE-115.204.434), having launched in Zurich in 2009, under Swiss jurisdiction with an EU adequacy decision. It is the wrong fit for anyone wanting to own and operate their own virtualisation stack — that is every other entry in this category — and it only makes sense for a business that wants to become a cloud provider without building the underlying platform itself.

What CloudSigma does well

  • Revenue-share model, no platform licence fee
  • Per-second utility billing for end customers
  • No bundled instance tiers to overpay for
  • Swiss jurisdiction, EU adequacy decision
  • Operating since 2009

Where CloudSigma falls short

  • For reselling capacity, not for running your own stack
  • Revenue-share terms not published
  • Wrong fit for internal enterprise IT
  • Smallest jurisdiction footprint (Zug) of the Swiss entries

Standout feature. The only entry here where the buyer never touches a hypervisor at all — CloudSigma runs it and shares the revenue.

What is driving everyone out of VMware?

Per-core subscription licensing after the Broadcom acquisition, which changed the arithmetic for a large number of organisations at once.

The result is a genuine migration wave, and the European options are unusually strong for it because most of them are open source with no per-core licensing at all. Proxmox VE is free with no feature limits and support subscriptions from about €115 per CPU per year — the entire cost structure is different, not a discount on the same model.

What matters most in choosing is the migration path rather than the feature comparison. Proxmox ships an ESXi import wizard, XCP-ng documents a V2V route from VMware, and OpenNebula supports VMware import. Without one of those, the project is a rebuild.

The second thing to check is what you actually used vSphere for. If it was VMs, clustering and shared storage, Proxmox covers it. If it was NSX-level networking, nothing here is a direct equivalent, and that gap needs designing around rather than discovering.

What does Proxmox include that VMware charges for?

High-availability clustering, distributed storage and backup — the three things that make a VMware estate expensive, all included with no feature limits.

Proxmox VE combines KVM for virtual machines and LXC for containers with HA clustering, Ceph distributed storage, built-in backup, software-defined networking and a REST API, and none of it is gated behind a tier. The free version is the full version.

The ESXi import wizard is what makes migration realistic rather than aspirational, and the community around it is large and active enough that most problems are already documented and answered.

Proxmox Server Solutions GmbH has operated from Vienna since 2005 under AGPLv3, with support subscriptions from about €115 per CPU per year for teams needing someone accountable. The honest gaps: the interface is less polished than vCenter, Ceph needs careful sizing and design to perform well, and there is no NSX-equivalent networking layer.

Which platform matches how your team already works?

Four different operating models sit in this category, and picking against your existing skills is the usual mistake.

A hypervisor with a management console, closest to the vSphere model: XCP-ng with Xen Orchestra as a separate management plane, live migration, continuous replication and strong built-in backup, with commercial support from Vates in Grenoble from about €950 per host per year.

A private cloud with tenants and APIs: OpenNebula for genuine multi-tenancy, multi-site and edge orchestration across KVM, LXC and Firecracker, Apache 2.0 from Madrid — and considerably lighter to operate than OpenStack.

Kubernetes everywhere: SUSE Virtualization runs VMs through KubeVirt with Longhorn storage and Rancher integration, so containers and VMs share one control plane. Or the full OpenStack API surface: Canonical OpenStack, with a managed option where Canonical operates the cloud for you.

When is OpenStack actually the right answer?

When you genuinely need its API surface, and rarely otherwise — which Canonical is unusually direct about.

OpenStack gives you a complete cloud API: tenants, quotas, networks, images, volumes, orchestration. If you are building something other teams consume programmatically, or repatriating from AWS and need comparable primitives, that surface is the requirement and nothing simpler substitutes.

If you want to run virtual machines on your own hardware, it is dramatically more complex than a hypervisor manager, and the operational cost is ongoing rather than one-off. Canonical's Sunbeam simplifies deployment considerably and a ten-year support commitment per release addresses the lifecycle question, with Ubuntu Pro from about $75 per node per year.

The managed option is the genuinely interesting part: Canonical operates the cloud for you, which converts an OpenStack team into a subscription. Canonical Ltd is UK-based, so adequacy rather than EU establishment — worth noting if procurement names EU member states.

What about storage and service providers?

Seven specialists sit here for buyers the hypervisor managers do not serve — StorPool and Virtuozzo anchor the discussion below, and LINBIT, croit, Acronis Cyber Infrastructure, SoftIron HyperCloud and CloudSigma cover the same non-hypervisor ground in their own reviews.

StorPool is distributed NVMe block storage rather than a hypervisor, delivering consistent sub-millisecond latency with native drivers for Proxmox, OpenNebula, OpenStack and Kubernetes. It exists for the workloads where Ceph's latency profile is the problem — databases, VDI, anything where tail latency is what users feel. StorPool operates the storage for you, scales without disruption, and is priced per usable TB from Sofia. It needs NVMe and a well-specified network, and it is commercial where Ceph is free.

Virtuozzo is built for hosting companies and cloud service providers rather than internal IT: multi-tenancy and metering designed for reselling, high container density that improves margins directly, integrated distributed storage, a self-service portal and a DevOps PaaS layer. Virtuozzo International GmbH has nearly three decades of virtualisation experience from Schaffhausen under Swiss jurisdiction.

For internal enterprise IT, Virtuozzo is the wrong fit — its whole design assumes you are selling the capacity.

How we selected and ranked these 14 tools

Every tool on this page is in the European Purpose directory, which means the operating company is established in Europe and we have verified that from the company register or the vendor's own legal notice rather than from a marketing page. Tools headquartered outside Europe are not eligible, however good they are.

  1. Feature verification (weight: 40%). We check each capability against the vendor's own documentation and product pages, and record what the tool does rather than what the category is assumed to include.
  2. Ease of adoption (weight: 30%). Integrations, published API access, trial availability and how much configuration stands between signing and a usable result.
  3. Value and transparency (weight: 30%). Published pricing counts in a vendor's favour; quote-only pricing is recorded as quote-only rather than estimated. We weigh what a buyer gets for the entry price, not the headline feature count.
  4. Editorial review. Three people touch every page: one writes it, a second edits it, and a third checks the compliance and pricing claims against the vendor's documentation. The three weights above decide the order; a position is a ranking against the other European tools in this category, not an absolute score.

Vendor-reported outcomes — ROI figures, margin uplift, time saved — are labelled as vendor claims wherever they appear on this page. We have not audited them, and neither has anyone else who quotes them. Read our full editorial process for how pages are re-verified.

Frequently asked questions

Proxmox VE holds #1 among the European virtualisation platforms in this directory, because it includes KVM and LXC virtualisation, HA clustering, Ceph storage and built-in backup at no cost with no feature limits, plus an ESXi import wizard for migrating off VMware. Support subscriptions from about €115 per CPU per year come from Proxmox Server Solutions in Vienna, under AGPLv3.

Proxmox VE for most organisations, because clustering, Ceph storage and backup are included rather than licensed separately and the ESXi import wizard makes migration realistic. XCP-ng is the closer match if you liked the vCenter model, with Xen Orchestra as a separate management plane and a documented V2V path from VMware, supported by Vates in France from about €950 per host per year.

Per-core subscription licensing introduced after the Broadcom acquisition, which changed the cost of an existing estate enough to justify a migration project. The European alternatives are unusually strong here because most are open source with no per-core licensing at all — Proxmox VE is free with no feature limits, XCP-ng and OpenNebula are free with paid support, and Canonical OpenStack has no per-core licensing either.

Yes, and checking this first matters more than any feature comparison. Proxmox VE ships an ESXi import wizard, XCP-ng documents a V2V path from VMware, and OpenNebula and Virtuozzo both support VMware import. Without a documented migration path the project becomes a rebuild rather than a move — which is usually the difference between a plan that completes and one that stalls.

SUSE Virtualization, built on Kubernetes with KubeVirt so virtual machines and containers share one control plane and one operational model, with Longhorn for storage, Rancher integration for multi-cluster management, live migration and hyperconverged nodes needing no separate SAN. Free as open-source Harvester under Apache 2.0, with SUSE subscription pricing on request. It requires real Kubernetes expertise, and its VM-centric features trail more mature platforms.

Only when you genuinely need its API surface — tenants, quotas, networks, images, volumes and orchestration consumed programmatically by other teams, or an AWS repatriation needing comparable primitives. If you simply want VMs on your own hardware it is dramatically more complex than a hypervisor manager. Canonical's Sunbeam simplifies deployment, a ten-year support commitment covers the lifecycle, and a managed option has Canonical operate the cloud for you.

Distributed and edge infrastructure, and private clouds needing real multi-tenancy. It orchestrates KVM, LXC and Firecracker across multiple sites from one control plane, with multi-tenancy built in from the start rather than added later, Kubernetes support, hybrid cloud bursting and VMware import — and it is much lighter to operate than OpenStack. Apache 2.0 with a free Community Edition from OpenNebula Systems in Madrid. Overkill for a small single-site estate.

Ceph is enough until latency is what your users feel. StorPool is distributed NVMe block storage delivering consistent sub-millisecond latency, with native drivers for Proxmox, OpenNebula, OpenStack and Kubernetes, and the vendor operates it for you. It exists for databases, VDI and other latency-sensitive workloads where Ceph's profile is the constraint. It requires NVMe and a well-specified network, is priced per usable TB, and is commercial where Ceph is free.

Virtuozzo, built for reselling rather than for internal IT: multi-tenancy and metering designed for service providers, high container density that improves margins directly, integrated distributed storage, a self-service portal, a DevOps PaaS layer, backup and VMware migration. Virtuozzo International GmbH operates from Schaffhausen with nearly three decades in virtualisation. Pricing is per node on request, it is only partially open source, and it is the wrong fit for internal enterprise IT.

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If you build a European virtualization tool that belongs here, tell us about it. Every suggestion is checked against the same criteria as the tools above: European ownership and hosting, a real product, and pricing we can verify. A listing is editorial, and we say so on this page where placement is paid.

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