Non-EU vendorFinOps & Cloud Cost ManagementHeadquarters: US

Stacklet: sovereignty score and 8 European alternatives

Stacklet is a commercial cloud governance platform for large organisations that want to manage security, operations, visibility and cost across public cloud environments. Its policies and automated actions build on Cloud Custodian, an open-source policy engine created by the Stacklet team, which Stacklet sponsors as a project of the Cloud Native Computing Foundation (CNCF). On top of this open-source core, Stacklet adds commercial features and agentic AI capabilities under an open-core model.

Stacklet is headquartered in Arlington, Virginia, United States, and was founded in 2020. The company's own website does not state its legal seat, ownership, the location where customer data is hosted or whether a self-hosted option exists. Because the vendor is US-headquartered, US authorities could reach company-held data under the CLOUD Act, wherever the servers stand. The Cloud Custodian engine can be reviewed and run independently of the commercial platform, which is not itself open source. A European organisation should obtain the hosting location and data processing terms in writing before adopting it.

See the 8 European alternatives ↓Assess your stack with Stacklet 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 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	USVerified by hand
Open-source	NoVerified by hand
GDPR-compliant	NoVendor-stated
Category	FinOps & Cloud Cost Management
Type	Product
Website	stacklet.ai ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to Stacklet

The European alternatives to Stacklet come from our knowledge base of over 8,000 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

11 European FinOps & Cloud Cost Management 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 Stacklet

Stacklet 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.

Stacklet 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.

Stacklet 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 Stacklet 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 Stacklet?

It depends on your use case. Strong EU alternatives to Stacklet include BoaviztAPI, Cloudchipr and CloudCockpit. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to Stacklet?

Yes. Open-source EU alternatives to Stacklet include BoaviztAPI and kube-green. These keep your data fully under your own control and let you self-host if you want to.

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

Stacklet 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

Digital sovereignty in FinOps & Cloud Cost Management

FinOps & Cloud Cost Management: Cloud cost visibility, optimisation and chargeback across multi-cloud and Kubernetes environments. 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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