Auth & Identity: European providers compared
Identity and access management (IAM): login, SSO, MFA and user management for your own applications – ideally open source, self-hostable and with EU data residency.
Recommendations
Zitadel
Switzerland
Swiss open-source identity and auth platform (OIDC, SAML, MFA) – self-hostable or as a cloud, an alternative to Auth0/Okta.
Comparison table
| Providers | Score | Headquarters | Open Source | Self-hosting | EU hosting | Pricing |
|---|---|---|---|---|---|---|
| Zitadel | 86 | Switzerland | Open source (AGPLv3, self-hosted, free) / cloud (pay-as-you-go) |
Selection criteria
Clarify the standards you need (OIDC, SAML, SCIM), MFA or passkeys, multi-tenancy and whether self-hosting matters. Open-source, self-hostable solutions give full control over identities.
Data protection & compliance
IAM systems manage especially sensitive identity and access data. Important factors are EU data residency or self-hosting, a DPA and strong authentication (MFA, FIDO2).
The Sovereignty Score is an editorial orientation aid, not legal advice.
Typical use cases
- Login and SSO for your own apps
- Multi-tenant B2B SaaS
- MFA and passkeys/FIDO2
- Self-hosting for full identity control
Pricing guidance
Self-hostable open-source options are free; cloud usually bills by active users (DAU/MAU), typically with a free entry tier.
Providers in this category
Zitadel
Switzerland
Swiss open-source identity and auth platform (OIDC, SAML, MFA) – self-hostable or as a cloud, an alternative to Auth0/Okta.
Frequently asked questions
Is there a European Auth0 alternative?
The Sovereignty Score is an editorial orientation aid, not legal advice. How we rate.