EU Sovereignty Score
Non-EU vendorCompliance & GRCHeadquarters: GB

ISMS.online: sovereignty score and 8 European alternatives

ISMS.online is a UK platform for information security and compliance management. Its product, called IO, helps organisations run an information security management system, manage data privacy and govern their use of AI within one system. It is delivered as an online service. The operating company is Alliantist Ltd, based in Brighton, England.

The company is based in the United Kingdom, which is outside the European Union. Late in 2023 its website announced an EU data centre for a January 2024 launch, but the page does not confirm that launch or name the hosting location for customer data. The website describes regional data centres in the UK, the US and Australia. The product is not open source. European organisations should confirm in writing where their data is stored and which sub-processors are involved before adopting the service.

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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 10, 2026
Headquarters
GB (OTHER)Verified 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
Compliance & GRC
Type
Product
Website
isms.online ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to ISMS.online

The European alternatives to ISMS.online 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

43 European Compliance & GRC 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 ISMS.online

ISMS.online 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.

ISMS.online 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.

ISMS.online 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 ISMS.online 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 ISMS.online?

It depends on your use case. Strong EU alternatives to ISMS.online include 2B Advice PrIME, Actecil and Adherent. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to ISMS.online?

Yes. Open-source EU alternatives to ISMS.online include CISO Assistant. These keep your data fully under your own control and let you self-host if you want to.

Is ISMS.online GDPR-compliant and where is the data hosted?

ISMS.online 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 10, 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 Compliance & GRC

Compliance & GRC: Governance, risk management, compliance, privacy management and cookie consent. 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 ISMS.online — GDPR-compliant & EU-hosted · EU Sovereignty Score