EU sovereignTelephony & VoIPHeadquarters: SK

Slovak Telekom: sovereignty score and 8 European alternatives

Slovak Telekom is a telecommunications operator headquartered in Bratislava, Slovakia. The company offers mobile call plans, prepaid credit top-ups and fixed-line services. The service is delivered as a network service: customers subscribe to connectivity and telephony rather than installing software.

Slovak Telekom a.s. is wholly owned by Deutsche Telekom AG, a listed German company. The operator's own website does not state this ownership structure. Its parent therefore sits in a different country from the Slovak headquarters. Public documentation on where customer data is stored is limited, so a European organisation should ask for written confirmation of where call records, subscriber data and content are kept and which sub-processors have access. The information is based on public sources and may change.

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Sovereignty score

71 / 1000 = high exposure
100 = sovereign

Jurisdiction SOV-2100
Headquartered in the EU: European law applies
Data residency SOV-3100
EU-only hosting
Cryptographic key sovereignty SOV-360
Key management with a European vendor
Freedom from lock-in SOV-640
Closed source: switching requires data migration
Source & runtime sovereignty SOV-4 · SOV-655
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	SK (EU)Verified by hand
Ultimate parent company	DEVerified by hand
Sovereignty model	Vendor-hosted (EU)Verified by hand
Data hosting	EUVerified by hand
Open-source	NoVerified by hand
GDPR-compliant	NoVendor-stated
Category	Telephony & VoIP
Type	Product
Website	telekom.sk ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to Slovak Telekom

The European alternatives to Slovak Telekom 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

75 European Telephony & VoIP 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 Slovak Telekom

Slovak Telekom is headquartered in SK and therefore falls under European law: the GDPR, NIS2 and the Data Act. No foreign legislation can compel access to your data. The ultimate owner is based in DE, also within Europe.

Data is hosted exclusively in the EU, so Slovak Telekom scores best on data residency.

Slovak Telekom 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 Slovak Telekom 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 Slovak Telekom?

It depends on your use case. Strong EU alternatives to Slovak Telekom include A1 Telekom Austria, Acrobits and Adversus. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to Slovak Telekom?

Our list of EU alternatives to Slovak Telekom is mostly commercial options. Browse the category on the map for open-source choices.

Is Slovak Telekom GDPR-compliant and where is the data hosted?

Slovak Telekom is headquartered in SK (EU) and hosts data in EU. That makes Slovak Telekom an EU-sovereign choice in its own right; the EU alternatives on this page are comparable European tools.

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

Timeline

Dated changes in who controls this vendor or where it is based, newest first. Every line links to the public sources.

July 2000 · Ownership changeVendor-stated
In July 2000 Deutsche Telekom (Germany) bought a 51% stake in Slovak Telecom in its privatisation; the group has held 100% since 2015.

All ownership changes

Digital sovereignty in Telephony & VoIP

Telephony & VoIP: Business telephony, VoIP platforms, CPaaS and communication APIs. 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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