EU Sovereignty Score
EU-hosted, non-EU parentE-learning AuthoringHeadquarters: SK

Slido: sovereignty score and 8 European alternatives

Slido is an audience-interaction tool for meetings, training sessions and events. Presenters run live polls, quizzes, word clouds, surveys and anonymous audience Q&A, review the results in an analytics view and export them afterwards. Participants join from their own device without an account or download. Slido connects to PowerPoint, Google Slides, Microsoft Teams, Zoom and Webex. It is delivered as software as a service.

Slido began as a Slovak company in Bratislava and was acquired by Cisco; the service is now part of Webex. Its ultimate parent is therefore a US company, which is the relevant signal under the US CLOUD Act. According to Slido's security page, the service runs on Amazon Web Services infrastructure located in the EU, in Ireland and Germany, and Slido says it would notify customers before any move to another region. Slido is not open source. A European organisation therefore gets EU data location, but should weigh the US ownership when assessing legal access risk.

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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 July 2, 2026
Headquarters
SK (EU)Verified by hand
Ultimate parent company
USVerified by hand
Sovereignty model
Vendor-hosted (EU)Verified by hand
Data hosting
EUVerified by hand
Open-source
NoVerified by hand
GDPR-compliant
YesVendor-stated
Hosting signal
AMAZON-02 - Amazon.com, Inc., US (US)Technically measured
Category
E-learning Authoring
Type
Product
Website
slido.com ↗

The hosting signal shows the network that serves the vendor's website, often a CDN, and not necessarily where the service or your data is hosted. How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to Slido

The European alternatives to Slido 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

34 European E-learning Authoring 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 Slido

Slido 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 US. Foreign control undermines part of the certainty a European headquarters offers.

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

Slido 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 Slido 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 Slido?

It depends on your use case. Strong EU alternatives to Slido include 360Learning, Attensi and bettermarks. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to Slido?

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

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

Slido is headquartered in SK (EU) and hosts data in EU. That makes Slido 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 July 2, 2026.

Sources

This record was checked via the vendor's website and legal notice during the full audit of June and July 2026. Source links have been recorded per record since 20 September 2026.

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 E-learning Authoring

E-learning Authoring: E-learning authoring software, interactive content and presentation tools. 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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8 European alternatives to Slido — GDPR-compliant & EU-hosted · EU Sovereignty Score