Self-hosted / open sourceStorage & BackupHeadquarters: US

Nasuni: sovereignty score and 8 European alternatives

Nasuni is a file data platform for enterprises. It replaces traditional file servers and NAS systems with a single global namespace on top of cloud object storage, with local edge caches at each site for fast access. Nasuni also offers ransomware protection, immutable file history, data migration and data intelligence. The platform supports cloud, on-premises and hybrid deployments, and the file data sits in the object storage the customer selects.

Nasuni is a US company headquartered in Boston with offices including Cork and London. The company lists private equity and other investors. According to the vendor, data stays in the customer's chosen cloud tenancy and region, on AWS, Azure, Google Cloud, Oracle Cloud or private object storage, and the customer controls the encryption keys. The service can therefore run in an EU region, but the company itself is subject to US jurisdiction, including the CLOUD Act.

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Sovereignty score

57 / 1000 = high exposure
100 = sovereign

Jurisdiction SOV-210
Headquartered in the US: CLOUD Act and FISA 702
Data residency SOV-3100
Hosting inside and outside Europe (EU, US, OTHER)
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-655
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 EU, US, OTHER (your choice)Verified by hand
Open-source	NoVerified by hand
GDPR-compliant	NoVendor-stated
Category	Storage & Backup
Type	Product
Website	nasuni.com ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to Nasuni

The European alternatives to Nasuni 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

32 European Storage & Backup vendors are in the catalogue. View the whole category · Submit an alternative · View category on the map

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Why digital sovereignty matters with Nasuni

Nasuni 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.

Nasuni 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.

Nasuni 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 Nasuni 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 Nasuni?

It depends on your use case. Strong EU alternatives to Nasuni include Acronis, Atempo and Bacula Systems. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to Nasuni?

Yes. Open-source EU alternatives to Nasuni include Bacula Systems, Bareos and BorgBackup. These keep your data fully under your own control and let you self-host if you want to.

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

Nasuni is headquartered in US and hosts data in EU, US, OTHER. 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

Digital sovereignty in Storage & Backup

Storage & Backup: Business storage, backup solutions, object storage and data recovery. 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.

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