Identity Providers
Identity providers manage user authentication and single sign-on across applications, issuing tokens and managing sessions. They implement OAuth 2.0, OpenID Connect, and SAML protocols to federate identity across services. European identity providers offer eIDAS-compatible authentication and GDPR-compliant user data storage, with differentiation in protocol support, directory integration, and user migration tooling.
🇩🇪
Authentik
Aachen
Free (open source)
Free
GDPR
Open-Source
SSO
LDAP
SAML
🇩🇪
Bare.ID
Munich
€3/user/mo
Free
GDPR
Keycloak
SSO
Managed Service
🇸🇪
Curity
Stockholm
Custom pricing
GDPR
API Security
Enterprise
🇫🇷
Eviden
Bezons
On request
GDPR
ISO 27001
Enterprise IAM
eIDAS
🇸🇰
Evolveum
Bratislava
Free (open source)
Free
GDPR
Open-Source
Identity Governance
Provisioning
🇩🇪
Hanko
Kiel
Free (open source)
Free
GDPR
Open-Source
Passkeys
WebAuthn
FIDO2
🇩🇪
Ory
Munich
$29.00/mo
Free
GDPR
Open-Source
Zero Trust
🇫🇷
Thales
Paris
On request
Free
GDPR
ISO 27001
MFA
eIDAS
Smart Cards
🇧🇪
TrustBuilder
Ghent
On request
Free
GDPR
CIAM
Orchestration
No-Code
🇫🇮
Ubisecure
Helsinki
On request
GDPR
CIAM
B2B Identity
API Security
🇩🇪
Univention
Bremen
Free (open source)
Free
GDPR
Open-Source
LDAP
Active Directory
Linux
🇨🇭
Zitadel
St. Gallen
€0.00/mo
Free
GDPR
Open-Source
Multi-Tenant
🇩🇪
cidaas
Pforzheim
€500/mo
GDPR
MFA
Passwordless
ISO 27001