EU Sovereignty Score
Non-EU vendorData Platform & WarehouseHeadquarters: US

SingleStore: sovereignty score and 8 European alternatives

SingleStore is a distributed SQL database that combines transactional, analytical and vector workloads in one engine. It is compatible with the MySQL and MongoDB wire protocols, supports SQL and ACID transactions, and ingests data through pipelines from sources such as Kafka, Amazon S3 and HDFS. Its cloud service, SingleStore Helios, separates storage from compute and scales clusters horizontally. The company was formerly known as MemSQL and positions the product as a database for real-time AI applications.

SingleStore is headquartered in San Francisco, United States, and in 2025 announced a growth buyout in which the private equity firm Vector Capital takes majority ownership. As a US company it falls under US jurisdiction, including the CLOUD Act. Helios is offered in regions of AWS, Google Cloud and Microsoft Azure; the vendor pages consulted do not list which European regions exist, so a European organisation should confirm region availability and data-location terms with SingleStore. The software is proprietary.

See the 8 European alternatives ↓Assess your stack with SingleStore pre-selected
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Sovereignty score
17 / 1000 = high exposure
100 = sovereign
  • Jurisdiction SOV-210
    Headquartered in the US: CLOUD Act and FISA 702
  • Data residency SOV-30
    No hosting in Europe (US)
  • Cryptographic key sovereignty SOV-320
    Key management with a non-European vendor
  • Freedom from lock-in SOV-640
    Closed source: switching requires data migration
  • Source & runtime sovereignty SOV-4 · SOV-615
    Closed source, runtime with the vendor

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 5, 2026
HeadquartersUS (US)Verified by hand
EU adequacy decisionOnly for companies individually certified under the EU-US Data Privacy FrameworkVerified by hand
Sovereignty modelVendor-hosted (non-EU)Verified by hand
Data hostingUSVerified by hand
Open-sourceNoVerified by hand
GDPR-compliantNoVendor-stated
CategoryData Platform & Warehouse
TypeProduct
Websitesinglestore.com ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to SingleStore

The European alternatives to SingleStore come from our knowledge base of over 6,200 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

12 European Data Platform & Warehouse 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 SingleStore

SingleStore 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.

SingleStore hosts data outside the EU (US). Personal data therefore leaves the EU, which requires a transfer mechanism under the GDPR and pulls the data residency score down.

SingleStore is closed source and hosted by the vendor. The encryption keys and the runtime sit with the vendor and switching requires data migration. Ask about bring-your-own-key, export options and open standards.

What this means for your organisation depends on your whole stack and context. The free assessment weighs SingleStore 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 SingleStore?

It depends on your use case. Strong EU alternatives to SingleStore include DuckDB, Exasol and Falkor. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to SingleStore?

Yes. Open-source EU alternatives to SingleStore include DuckDB, Garage and MonetDB. These keep your data fully under your own control and let you self-host if you want to.

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

SingleStore 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 5, 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 Data Platform & Warehouse

Data Platform & Warehouse: Lakehouses, cloud data warehouses, data-lake storage and analytical databases for enterprise-wide analysis. 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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8 European alternatives to SingleStore — GDPR-compliant & EU-hosted · EU Sovereignty Score