EU Sovereignty Score
EU sovereignCollaborationHeadquarters: DE

Stackfield: sovereignty score and 8 European alternatives

Stackfield is a collaboration platform for project management and team communication. It brings together tasks and workflows, group chats and discussions, timelines and portfolios, video conferencing with screen sharing, documentation and whiteboards in one workspace. According to the vendor, it targets organisations that handle sensitive data, such as government agencies, banks, insurers, law firms and universities. Stackfield is delivered as a cloud service and is available as a web app and as apps for iOS, Android, Windows and macOS.

Stackfield GmbH is a German company. Its security page states that data is processed only on servers in the EU and stored in German data centres, and that subcontractors for hosting and email are also based in the EU. The vendor documents encryption in the user's browser (AES-256 and RSA-2048) and lists a BSI C5 attestation and ISO 27001 certification. No non-European parent company is named. For a European organisation, this means the service falls under German and European law.

See the 8 European alternatives ↓Assess your stack with Stackfield pre-selected
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
HeadquartersDE (EU)Verified by hand
Sovereignty modelVendor-hosted (EU)Verified by hand
Data hostingEUVerified by hand
Open-sourceNoVerified by hand
GDPR-compliantYesVendor-stated
Compliance documents1 published, see belowVendor-stated
Hosting signalSOPRADO-ANY - SOPRADO GmbH, DE (DE)Technically measured
CategoryCollaboration
TypeProduct
Websitestackfield.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 Stackfield

The European alternatives to Stackfield 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 Stackfield

Stackfield 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 Stackfield scores best on data residency.

Stackfield 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 Stackfield 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 Stackfield?

It depends on your use case. Strong EU alternatives to Stackfield 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 Stackfield?

Yes. Open-source EU alternatives to Stackfield 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 Stackfield GDPR-compliant and where is the data hosted?

Stackfield is headquartered in DE (EU) and hosts data in EU. That makes Stackfield 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".

Security page / trust center
stackfield.com/security

Provenance of the links above:Vendor-stated

BSI C5Vendor-statedISO/IEC 27001Vendor-stated

Links checked on September 22, 2026.

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 Stackfield — GDPR-compliant & EU-hosted · EU Sovereignty Score