EU Sovereignty Score
EU sovereignESG & SustainabilityHeadquarters: DE

Tanso: sovereignty score and 8 European alternatives

Tanso is sustainability software for the manufacturing Mittelstand, developed by Tanso Technologies GmbH. The platform combines CO₂ accounting with ESG data management. Its modules cover the corporate carbon footprint (CCF), the product carbon footprint (PCF), reporting under CSRD/ESRS and VSME, and CBAM. EU Taxonomy, multi-reporting (such as EcoVadis and GRI), climate risk analysis, a supplier portal and an AI copilot are also listed. Functions include automated data collection, data-quality monitoring, an integrated emission-factor database and scope 1 to 3 calculation. According to Tanso, the solution is TÜV-certified. It is delivered as web-based software and is not open source.

Tanso Technologies GmbH is headquartered in Munich, Germany, and is subject to German and European law. No foreign parent company is named. Public information does not state where customer data is hosted, so ask for the hosting region, the processors and any transfer outside the EU.

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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 September 8, 2026
Headquarters
DE (EU)Verified 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
CLOUDFLARESPECTRUM - Cloudflare London, LLC, US (US)Technically measured
Category
ESG & Sustainability
Type
Product
Website
tanso.de ↗

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 Tanso

The European alternatives to Tanso 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

40 European ESG & Sustainability 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 Tanso

Tanso is headquartered in DE and therefore falls under European law: the GDPR, NIS2 and the Data Act. No foreign legislation can compel access to your data.

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

Tanso 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 Tanso 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 Tanso?

It depends on your use case. Strong EU alternatives to Tanso include bluesign, Carbmee and Carbonfact. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to Tanso?

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

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

Tanso is headquartered in DE (EU) and hosts data in EU. That makes Tanso 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 September 8, 2026.

Sources

This record was checked via the vendor's website and legal notice when it was added on September 8, 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 ESG & Sustainability

ESG & Sustainability: Carbon accounting, CSRD reporting, supply-chain due diligence (CSDDD/EUDR/CBAM) and ESG data management. 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 Tanso — GDPR-compliant & EU-hosted · EU Sovereignty Score