EU Sovereignty Score
EU sovereignOffice & ProductivityHeadquarters: NL

Group-Office: sovereignty score and 8 European alternatives

Group-Office is open-source groupware and CRM software from Intermesh BV in 's-Hertogenbosch. The suite bundles collaboration (email, calendar, document editing, chat and video calls), CRM with address book, newsletters and support, finance with invoicing and contracts, project management with tasks and time tracking, and file management with search and templates. With Studio, power users build their own modules. Devices synchronise email, contacts, calendars, notes and tasks via IMAP, ActiveSync, CalDAV, CardDAV and WebDAV.

Group-Office comes as an open-source version and a paid edition, self-hosted or online. In the online variant Intermesh hosts the software; according to the vendor, data can also be kept on your own systems or in a secure Intermesh data centre in the Netherlands. The company is based in the Netherlands, an EU member state, and no foreign parent company is known. For a European organisation this is a route to keeping groupware within the EU, with the option of running it yourself.

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Sovereignty score
94 / 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-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 4, 2026
Headquarters
NL (EU)Verified by hand
Sovereignty model
Vendor-hosted (EU)Verified by hand
Data hosting
EUVerified by hand
Open-source
YesVerified by hand
GDPR-compliant
YesVendor-stated
Hosting signal
TRANSIP-AS - Signet B.V., NL (NL)Technically measured
Category
Office & Productivity
Type
Product
Website
group-office.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 Group-Office

The European alternatives to Group-Office 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

31 European Office & Productivity 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 Group-Office

Group-Office is headquartered in NL 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 Group-Office scores best on data residency.

Group-Office 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 Group-Office 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 Group-Office?

It depends on your use case. Strong EU alternatives to Group-Office include Ashampoo Office, Calligra Suite and Craft Docs. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to Group-Office?

Yes. Open-source EU alternatives to Group-Office include Calligra Suite, CryptPad, EGroupware, Euro-Office, eXo Platform and Framasoft (Framapad/Framacalc). These keep your data fully under your own control and let you self-host if you want to.

Is Group-Office GDPR-compliant and where is the data hosted?

Group-Office is headquartered in NL (EU) and hosts data in EU. It is also open-source, so you can self-host it. That makes Group-Office 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 4, 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 Office & Productivity

Office & Productivity: Office software, word processing, spreadsheets and groupware. 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 Group-Office — GDPR-compliant & EU-hosted · EU Sovereignty Score