Non-EU vendorData Integration & ETLHeadquarters: US

Astro (Astronomer): sovereignty score and 8 European alternatives

Astro, by Astronomer, is a managed service for Apache Airflow, the open-source workflow orchestrator used to schedule and monitor data pipelines. It can run as Astro Hosted, in which Astronomer operates the control plane and managed clusters, or in a hybrid model where the data plane runs in the customer's own cloud. Deployments can be managed as code through Git, the CLI, the API or Terraform.

Astronomer, Inc. is based in New York, according to its privacy policy. Hosted clusters are available on AWS in Frankfurt and Ireland as well as in US regions, so a European customer can choose an EU region. Its GDPR page says transfers outside the EEA rely on Standard Contractual Clauses. Astro itself is a commercial service, whereas Apache Airflow, on which it is built, is open source under the Apache Software Foundation. European organisations should check where the control plane and support access are located, since the company is a US provider.

See the 8 European alternatives ↓Assess your stack with Astro (Astronomer) pre-selected

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Sovereignty score

27 / 1000 = high exposure
100 = sovereign

Jurisdiction SOV-210
Headquartered in the US: CLOUD Act and FISA 702
Data residency SOV-350
Hosting inside and outside Europe (EU, 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 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
Sovereignty model	Vendor-hosted (non-EU)Verified by hand
Data hosting	EU, USVerified by hand
Open-source	NoVerified by hand
GDPR-compliant	YesVendor-stated
Category	Data Integration & ETL
Type	Product
Website	astronomer.io ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to Astro (Astronomer)

The European alternatives to Astro (Astronomer) 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

18 European Data Integration & ETL 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 Astro (Astronomer)

Astro (Astronomer) 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.

Astro (Astronomer) hosts data in EU, US. 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.

Astro (Astronomer) 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 Astro (Astronomer) 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 Astro (Astronomer)?

It depends on your use case. Strong EU alternatives to Astro (Astronomer) include Adverity, Axual and CloverDX. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to Astro (Astronomer)?

Yes. Open-source EU alternatives to Astro (Astronomer) include dlt (dltHub) and HiveMQ. These keep your data fully under your own control and let you self-host if you want to.

Is Astro (Astronomer) GDPR-compliant and where is the data hosted?

Astro (Astronomer) is headquartered in US and hosts data in EU, US. 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.

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 Data Integration & ETL

Data Integration & ETL: Data integration, ETL pipelines, data preparation and data quality management. 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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