EU Sovereignty Score
Non-EU vendorSMS APIsHeadquarters: US

Syniverse: sovereignty score and 8 European alternatives

Syniverse provides telecommunications technology and cloud services to mobile network operators, messaging providers and enterprises. Its portfolio covers A2P messaging and communications platform as a service (CPaaS), IPX connections for roaming and interconnection, roaming clearing and settlement, fraud prevention, mobile identity and authentication, and private networks. Customers use these services through the company's network and platforms.

Syniverse is headquartered in Tampa, Florida, in the United States. It is primarily owned by Carlyle Group and Twilio, with Twilio holding a minority stake. The Carlyle Group was founded in Washington, D.C. US ownership places the company within the reach of US law. Hosting locations and privacy commitments are matters for the contract with the company. A European organisation that routes SMS or roaming traffic through Syniverse is dealing with a provider not established in the EU, and processing and transfer terms should be agreed directly with the company.

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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
SMS APIs
Type
Product
Website
syniverse.com ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to Syniverse

The European alternatives to Syniverse 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

33 European SMS APIs 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 Syniverse

Syniverse 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.

Syniverse 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.

Syniverse 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 Syniverse 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 Syniverse?

It depends on your use case. Strong EU alternatives to Syniverse include 46elks, Agile Telecom and AnyMessage. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to Syniverse?

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

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

Syniverse 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 SMS APIs

SMS APIs: API services for sending SMS messages to customers. 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.

Also in this category

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8 European alternatives to Syniverse — GDPR-compliant & EU-hosted · EU Sovereignty Score