EU Sovereignty Score
Self-hosted / open sourceIoT & EmbeddedHeadquarters: CH

istSOS: sovereignty score and 8 European alternatives

istSOS is an open-source server for the OGC SensorThings API, written in Python. You use it to store observations from monitoring sensors, specimens or citizen reports and to make them available through an open standard. An extension called Traveltime makes it possible to keep processes based on the data reproducible. The software is installed by yourself, for example with Docker and a PostgreSQL database.

The project is led by a steering committee of researchers at SUPSI, the University of Applied Sciences and Arts of Southern Switzerland in Lugano, and is partly funded by SUPSI, the Canton of Ticino and the swissuniversities open science programme. No separate legal entity is named. The website mentions an incubation status and refers to OSGeo guidelines. The istSOS4 source repository carries the Apache-2.0 licence. Because you run the server yourself, the sensor data stays on your own infrastructure and there is no cloud service from the makers.

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Sovereignty score
94 / 1000 = high exposure
100 = sovereign
  • Jurisdiction SOV-2100
    Headquartered in Switzerland: Swiss law, recognised by the EU as adequate
  • Data residency SOV-3100
    Hosting in Switzerland only (recognised by the EU as adequate)
  • Cryptographic key sovereignty SOV-390
    Self-hostable: encryption keys under your own control
  • Freedom from lock-in SOV-680
    Open source: low switching costs
  • Source & runtime sovereignty SOV-4 · SOV-6100
    Source code auditable, forkable and self-hostable

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 14, 2026
Headquarters
CH (EU)Verified by hand
Sovereignty model
Open-source, distributedVerified by hand
Data hosting
CHVerified by hand
Open-source
YesVerified by hand
GDPR-compliant
YesVendor-stated
Category
IoT & Embedded
Type
Product
Website
istsos.org ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to istSOS

The European alternatives to istSOS come from our knowledge base of over 8,400 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

100 European IoT & Embedded 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 istSOS

istSOS is headquartered in Switzerland and falls under Swiss law, including the revised Swiss data protection act. Switzerland is not an EU member, but the European Commission recognises its level of data protection as adequate. Its Swiss headquarters does not by itself bring it under US legislation such as the CLOUD Act.

istSOS hosts data in Switzerland only. Switzerland is not part of the EU or the EEA, so the GDPR does not apply there directly; the European Commission does recognise Swiss data protection as adequate, so personal data can go there without extra safeguards. Our model therefore scores it between EU hosting and hosting outside Europe. If you require strictly EU hosting, take this into account.

istSOS is open source. You can audit the source code, self-host the software and keep the encryption keys under your own control. Switching is easier because data and software are not tied to a single party.

What this means for your organisation depends on your whole stack and context. The free assessment weighs istSOS 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 istSOS?

It depends on your use case. Strong EU alternatives to istSOS include 1NCE, Actility ThingPark and Ágata Technology. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to istSOS?

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

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

istSOS is headquartered in CH (EFTA) and hosts data in CH. It is also open-source, so you can self-host it. That makes istSOS 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 14, 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

In the changelog

Earlier changes to this page, as listed in the public changelog.

Digital sovereignty in IoT & Embedded

IoT & Embedded: Internet of Things platforms, embedded systems and industrial IoT solutions. 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 istSOS — GDPR-compliant & EU-hosted · EU Sovereignty Score