Non-EU vendorAI CoworkHeadquarters: US

Retell AI: sovereignty score and 8 European alternatives

Retell AI is a platform for building, deploying and managing AI agents that handle phone calls. An agent can take inbound and place outbound calls, book appointments, consult a knowledge base, navigate keypad menus and hand over to a human. There is a visual editor for call flows, testing with simulated scenarios, post-call analysis and live monitoring. Besides voice, web chat, SMS, APIs and SDKs are available, with telephony connections via SIP trunking and integrations such as Twilio. Retell is offered as SaaS; for strict requirements the company also mentions an on-premise deployment for enterprise customers.

Retell AI Inc. is a US company with an address in Redwood City, California, and is subject to US jurisdiction (California law). The software is not open source. The company cites HIPAA, SOC 2 Type II, GDPR and ISO 27001 and offers a data processing agreement. Its website does not state data locations; before processing call data of European data subjects, ask about storage and processing locations and sub-processors.

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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 9, 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	YesVendor-stated
Category	AI Cowork
Type	Product
Website	retellai.com ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to Retell AI

The European alternatives to Retell AI come from our knowledge base of over 7,800 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

26 European AI Cowork 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 Retell AI

Retell AI 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.

Retell AI 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.

Retell AI 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 Retell AI 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 Retell AI?

It depends on your use case. Strong EU alternatives to Retell AI include 2501.ai, Agent Zero and Amberscript. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to Retell AI?

Yes. Open-source EU alternatives to Retell AI include Agent Zero and Cognee. These keep your data fully under your own control and let you self-host if you want to.

Is Retell AI GDPR-compliant and where is the data hosted?

Retell AI is headquartered in US and hosts data in 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 9, 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 AI Cowork

AI Cowork: Autonomous AI desktop agents — multi-step task execution, document processing, workflow automation. 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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