Self-hosted / open sourceVirtualisation & ContainersHeadquarters: US

XenServer: sovereignty score and 8 European alternatives

XenServer is a virtualisation platform (hypervisor) installed on an organisation's own servers that runs virtual machines across a pool of hardware. The current release is XenServer 9. According to press coverage of XenServer 8, features include live migration of virtual machines, dynamic memory control, GPU virtualisation, virtual TPMs and a migration tool from VMware; management is done with XenCenter. The product was previously called Citrix Hypervisor and is offered through Citrix subscriptions and separate editions licensed per socket.

XenServer is owned by Cloud Software Group, the US company formed in 2022 from the merger of Citrix and TIBCO, headquartered in Fort Lauderdale, Florida, and privately held by Vista Equity Partners and Evergreen Coast Capital. Because the software runs on the customer's own infrastructure, the customer decides where data resides; the vendor itself is subject to US jurisdiction, including the CLOUD Act. The product itself is not open source. European organisations looking to change supplier can consider European or open-source virtualisation.

See the 8 European alternatives ↓Assess your stack with XenServer pre-selected

Mastodon LinkedIn Bluesky X Email

Sovereignty score

55 / 1000 = high exposure
100 = sovereign

Jurisdiction SOV-210
Headquartered in the US: CLOUD Act and FISA 702
Data residency SOV-3100
No hosting in Europe (US)
Cryptographic key sovereignty SOV-380
Closed source, but self-hostable: encryption keys and runtime under your own control
Freedom from lock-in SOV-640
Closed source: switching requires data migration
Source & runtime sovereignty SOV-4 · SOV-645
Closed source, but self-hostable on your own infrastructure

SOV codes: the matching objective in the European Commission's Cloud Sovereignty Framework. Official source

How the score is calculated

Facts and evidence

Last checked October 11, 2026

Headquarters	US (US)Verified by hand
EU adequacy decision	Only for companies individually certified under the EU-US Data Privacy FrameworkVerified by hand
Data hosting	Self-hosted, e.g. in US (your choice)Verified by hand
Open-source	NoVerified by hand
GDPR-compliant	NoVendor-stated
Category	Virtualisation & Containers
Type	Product
Website	xenserver.com ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to XenServer

The European alternatives to XenServer come from our knowledge base of over 6,800 vendors. We only list vendors headquartered in the EU or the EEA; fully European-owned vendors rank before vendors with a foreign owner. For each alternative you see the country, the open-source status and a short description.

Score per alternative: 0 = high exposure, 100 = sovereign

20 European Virtualisation & Containers vendors are in the catalogue. View the whole category · Submit an alternative · View category on the map

Is XenServer one of many dependencies?

Score your whole stack in about three minutes. Free, no account needed.

Assess your stack →View a sample report (opens in a new tab)

Why digital sovereignty matters with XenServer

XenServer is headquartered in the United States. US vendors fall under the CLOUD Act and FISA 702: US authorities can compel access to data, even when that data sits in a European data centre. That is the core of the jurisdictional exposure in our model.

XenServer runs on infrastructure you choose and control yourself. You decide where the data lives, including fully within the EU if you want — this is not a fixed hosting choice made by the vendor.

XenServer is closed source, but you run the software yourself on your own infrastructure. The encryption keys and the runtime therefore stay under your own control, though you cannot audit or modify the source code. Ask about export options and open standards to limit software-level lock-in.

What this means for your organisation depends on your whole stack and context. The free assessment weighs XenServer together with your other vendors and gives a total score, a heatmap and the main risk drivers.

Frequently asked questions

What is the best European alternative to XenServer?

It depends on your use case. Strong EU alternatives to XenServer include APPUiO (VSHN), Gardener and Giant Swarm. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to XenServer?

Yes. Open-source EU alternatives to XenServer include Gardener, Giant Swarm, Harvester, IncludeOS, K3s, Kamaji and Kubermatic. These keep your data fully under your own control and let you self-host if you want to.

Is XenServer GDPR-compliant and where is the data hosted?

XenServer is headquartered in US and hosts data in US. Its GDPR compliance is limited or unclear. For full EU data residency the EU alternatives on this page usually offer more certainty.

Details and sources

Verified by handHeadquarters, owner, hosting locations and licence have been checked by us against public sources. Free of charge and for every vendor, not a paid label. Nothing in this knowledge base is taken over automatically. Last checked on October 11, 2026.

Sources

Public sources used in the latest check of this record.

Compliance evidence

The links below point to the vendor's own public documents. We only record what we found: a missing link means "not found publicly", not "not compliant".

No public compliance evidence has been recorded for this vendor yet. Do you know its DPA or subprocessor list? Something wrong? Suggest a correction

Cyber Resilience Act

Public signals that relate to the EU Cyber Resilience Act. They do not count towards the score. A missing line means "not found publicly".

We found none of these signals on the vendor's own site when we checked.

For products in scope of the CRA, CE marking is required from 11 December 2027; this cannot be checked yet.

Checked on October 11, 2026. What is the Cyber Resilience Act?

Digital sovereignty in Virtualisation & Containers

Virtualisation & Containers: Virtualisation platforms, container management, Kubernetes distributions and hypervisors. In this category the choice of vendor determines who has legal access to your data, where that data lives and how easily you can switch later.

Also in this category

See all →

Open in the alternatives dashboard Missing a vendor? Submit it Are you this vendor? You can also become a sponsor on the Virtualisation & Containers page — with no effect on your score