6 European alternatives to Apache Druid — GDPR-compliant & EU-hosted.

Self-hosted / open source

Open-source real-time OLAP analytics database (Apache Software Foundation) with sub-second queries on streaming and batch data.

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Facts

✓ 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.How we verify

Headquarters: US (US)
EU adequacy decision: Only for companies individually certified under the EU-US Data Privacy Framework
Sovereignty model: Open-source, distributed
Category: Data Platform & Warehouse
Type: Product
GDPR-compliant: Yes
Open-source: Yes
Data hosting: EU, OTHER

Sources

Public sources used in the latest check of this record.

druid.apache.org/

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

Sovereignty profile of Apache Druid

How this vendor scores on the five dimensions of the Digital Sovereignty Heatmap: 0 is sovereign, 100 is high exposure. These are the same scores the assessment uses.

Jurisdictional exposure (JES)	Headquartered in the US: CLOUD Act and FISA 702	90
Data residency (DRS)	EU and non-EU hosting (EU, OTHER)	0
Cryptographic key sovereignty (CKS)	Self-hostable: encryption keys under your own control	10
Platform lock-in (PLS)	Open source: low switching costs	20
Source & runtime sovereignty (SRS)	Source code auditable, forkable and self-hostable	25
Average		29

Why digital sovereignty matters with Apache Druid

Apache Druid 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.

Apache Druid hosts data in EU, OTHER. Exactly what stays within the EU — and what does not — is defined by the vendor's data processing agreement and sub-processor list, not by a setting you control yourself; check those documents for the precise scope, including backups, logs and support access.

Apache Druid is open source. You can audit the source code, self-host the software and keep the encryption keys under your own control. Switching is easier because data and software are not tied to a single party.

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

Top EU-based & GDPR-compliant alternatives to Apache Druid

The European alternatives to Apache Druid come from our knowledge base of over 3,600 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.

DuckDB
Dutch open-source SQL OLAP database optimized for analytics
NL · open-source
↗
Exasol
In-memory analytics database for high-performance data analysis and warehousing
DE · commercial
↗
Keboola
Czech data-operations and integration platform (ETL/ELT, orchestration), runs on customer-chosen AWS/Azure/GCP regions incl. EU.
CZ · commercial
↗
MonetDB
Dutch open-source column-store database for analytics workloads
NL · open-source
↗
SAP BW/4HANA
German (SAP) packaged data warehouse on top of SAP HANA for real-time enterprise analytics; on-prem or cloud, maintained through 2040.
DE · commercial
↗
Tinybird
Spanish real-time data-analytics platform (Madrid) built on ClickHouse that publishes SQL queries as scalable HTTP endpoints.
ES · commercial
↗

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Frequently asked questions

What is the best European alternative to Apache Druid?

It depends on your use case. Strong EU alternatives to Apache Druid include DuckDB, Exasol and Keboola. On this page you can compare 6 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to Apache Druid?

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

Is Apache Druid GDPR-compliant and where is the data hosted?

Apache Druid is headquartered in US and hosts data in EU, OTHER. The vendor states it is GDPR-compliant, but the data falls under non-EU jurisdiction. For full EU data residency the EU alternatives on this page usually offer more certainty.

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.

All European Data Platform & Warehouse vendors How the score is calculated

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