EU Sovereignty Score
Non-EU vendorMarketingHeadquarters: GB

VIOOH: sovereignty score and 8 European alternatives

VIOOH is a platform for the programmatic trading of digital out-of-home (DOOH) advertising. It gives media owners tools to manage the value of their screen inventory, and gives buyers access to that inventory through partnerships with demand-side platforms. Advertisers plan and buy digital advertising space in public and commercial locations. The service is delivered online as a platform, and the vendor's website does not state where data is hosted.

VIOOH is based in London, United Kingdom. It was launched in 2018 by the French outdoor advertising group JCDecaux, which announced that it held a majority of the capital, with the remainder held by the data firm Veltys. The current shareholding is not stated on the vendor's website. For a European organisation, the French parent is relevant to contracts and data flows, while the UK headquarters places the company outside EU jurisdiction. The website does not describe a GDPR data processing agreement, which should be requested before sharing audience or campaign data.

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Sovereignty score
32 / 1000 = high exposure
100 = sovereign
  • Jurisdiction SOV-250
    Headquartered outside the EU (GB)
  • Data residency SOV-30
    No hosting in Europe (OTHER)
  • Cryptographic key sovereignty SOV-340
    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-630
    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
GB (OTHER)Verified by hand
Ultimate parent company
FRVerified by hand
EU adequacy decision
Yes — found adequate by the European CommissionVerified by hand
Sovereignty model
Vendor-hosted (non-EU)Verified by hand
Data hosting
OTHERVerified by hand
Open-source
NoVerified by hand
GDPR-compliant
NoVendor-stated
Category
Marketing
Type
Product
Website
viooh.com ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to VIOOH

The European alternatives to VIOOH 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

85 European Marketing 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 VIOOH

VIOOH is headquartered in GB, outside the EU. Contracts and data therefore also fall under non-European law. The GDPR applies through contractual terms, but in a conflict with local legislation you have less certainty than with a European vendor. The ultimate owner is based in FR, also within Europe.

VIOOH hosts data outside the EU (OTHER). Personal data therefore leaves the EU, which requires a transfer mechanism under the GDPR and pulls the data residency score down.

VIOOH 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 VIOOH 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 VIOOH?

It depends on your use case. Strong EU alternatives to VIOOH include AccuRanker, Actito and Acumbamail. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to VIOOH?

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

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

VIOOH is headquartered in GB (OTHER) and hosts data in OTHER. 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 Marketing

Marketing: Marketing automation, email campaigns, newsletters. 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 VIOOH — GDPR-compliant & EU-hosted · EU Sovereignty Score