EU Sovereignty Score
EU-hosted, non-EU parentCollaborationHeadquarters: FR

Rainbow: sovereignty score and 8 European alternatives

Rainbow is a cloud communication and collaboration platform for chat, voice, video and file sharing, offered by Alcatel-Lucent Enterprise. Customers can use it as a public cloud service, on a private cloud, or alongside an existing PBX, and the product page lists a Microsoft Teams connector and a hybrid bridge. The product page describes it as a secure enterprise-grade platform and says that AI features bundled with it do not train third-party models.

Alcatel-Lucent Enterprise is headquartered in Paris, France. Alcatel-Lucent Enterprise, which develops Rainbow, is majority-owned by the Chinese group China Huaxin. The product page cites 15 data centres worldwide and a private-cloud option, without listing their locations. For a European organisation, the practical question is which data centre hosts its tenant and under which jurisdiction, and this should be settled in the contract before adoption. The private-cloud option offers more control over where data is stored.

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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
HeadquartersFR (EU)Verified by hand
Ultimate parent companyCNVerified by hand
Sovereignty modelVendor-hosted (EU)Verified by hand
Data hostingEUVerified by hand
Open-sourceNoVerified by hand
GDPR-compliantYesVendor-stated
CategoryCollaboration
TypeProduct
Websiteal-enterprise.com ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to Rainbow

The European alternatives to Rainbow come from our knowledge base of over 6,200 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

37 European Collaboration 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 Rainbow

Rainbow is headquartered in FR 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 CN. Foreign control undermines part of the certainty a European headquarters offers.

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

Rainbow 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 Rainbow 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 Rainbow?

It depends on your use case. Strong EU alternatives to Rainbow include BigBlueButton (self-host), CryptPad and Nextcloud Deck. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to Rainbow?

Yes. Open-source EU alternatives to Rainbow include BigBlueButton (self-host), CryptPad, Nextcloud Deck, FluffyChat and HedgeDoc. These keep your data fully under your own control and let you self-host if you want to.

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

Rainbow is headquartered in FR (EU) and hosts data in EU. That makes Rainbow 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

Digital sovereignty in Collaboration

Collaboration: Team communication, file sharing, video conferencing, document editing. 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 Rainbow — GDPR-compliant & EU-hosted · EU Sovereignty Score