Ensure digital operational capability with Nubus for Business Continuity – sovereign IAM in standby mode.

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Digital Sovereignty Starts with Identity & Access Management

be open

Your identities. Your data. Your rules.
We connect people with applications – securely, openly, and under your control. Open source made in Germany for more than 20 years.

Trust that counts

Digital Sovereignty Reimagined

Retain Control Over Your Digital Future

True digital sovereignty means retaining full control over your software, your data, and your technological direction.
Nubus gives you that control back: without vendor lock-in, without hidden dependencies, and without being tied to individual cloud providers.

100 % Open Source

Complete transparency and control through open source code: auditable, customizable, and sustainably usable at any time.

100 % Open Standards

Full integrability and long-term compatibility through established standards: flexibly extensible in any direction.

100 % Compliance

Consistently aligned with European data protection and security standards such as GDPR and BSI IT Baseline Protection.

100 % Flexible Operating Models

Free choice of operating model – on-premises, in the cloud, or as SaaS, entirely according to your requirements.

How Nubus Works

IAM - The Heart of Your IT.
For All Identities. For All Systems.

Experience how Nubus connects your IT landscape into a complete solution while you retain full decision-making authority.

1
Administration
2
Products
3
Integrations
Step 1 of 3

One Login.
All Applications.

Nubus connects all users and applications in one central portal with access controlled according to roles and permissions.

Single Sign-on & Multi-Factor Authentication

Central sign-in for connected applications. Supports Multi-Factor Authentication (MFA) for additional protection of user access.

Central Rights and User Management

Manage users, groups, and permissions in one place. Access is granted based on roles and managed automatically.

BSI IT Baseline Protection-Compliant Implementation

Supports operation in accordance with BSI IT Baseline Protection. Documentation and traceability of access and permissions are ensured.

Step 2 of 3

The Right Solution for Your Use Case.

Central Identity and Access Management for public administration, businesses, and education. Flexibly adaptable to existing structures and requirements and designed to support digital sovereignty in complex IT landscapes.

Public & Enterprise
Nubus
  • Roles and permissions can be modeled flexibly
  • Self-service for users and permissions: reduces manual IT processes
  • Central identitiy & access management
  • Support with SLA: for productive operation in enterprise environments
Learn more about Nubus
Education
UCS@school
  • Automated school year rollover
  • Flexible role and permission assignment
  • Connect school services: ID Broker, Apple School Manager, and Microsoft 365
  • Integration with school administration systems and state directory services
Learn more about UCS@school
Step 3 of 3

Connect more than 60+ Integrations Flexibly.

Nubus and UCS@school can be flexibly integrated into existing IT landscapes.

Preconfigured Integration Packages

Connect common applications such as Open-Xchange App Suite, Nextcloud, ownCloud, and other applications - ready for use quickly and without development effort.

Open Interfaces & Standards

OIDC, SAML, LDAP, and REST-based APIs: for flexible integration with external systems, automated data exchange and integration.

Freely Configurable Application Landscapes

Build individual application landscapes without limitations when selecting the applications you use.

View All Integrations Book a demo
1
Administration
2
Products
3
Integrations
Step 1 of 3

One Login.
All Applications.

Nubus connects all users and applications in one central portal with access controlled according to roles and permissions.

Single Sign-on & Multi-Factor Authentication

Central sign-in for connected applications. Supports Multi-Factor Authentication (MFA) for additional protection of user access.

Central Rights and User Management

Manage users, groups, and permissions in one place. Access is granted based on roles and managed automatically.

BSI IT Baseline Protection-Compliant Implementation

Supports operation in accordance with BSI IT Baseline Protection. Documentation and traceability of access and permissions are ensured.

1
Administration
2
Products
3
Integrations
Step 2 of 3

The Right Solution for Your Use Case.

Central Identity and Access Management for public administration, businesses, and education. Flexibly adaptable to existing structures and requirements and designed to support digital sovereignty in complex IT landscapes.

Public & Enterprise
Nubus
  • Roles and permissions can be modeled flexibly
  • Self-service for users and permissions: reduces manual IT processes
  • Central identitiy & access management
  • Support with SLA: for productive operation in enterprise environments
Learn more about Nubus
Education
UCS@school
  • Automated school year rollover
  • Flexible role and permission assignment
  • Connect school services: ID Broker, Apple School Manager, and Microsoft 365
  • Integration with school administration systems and state directory services
Learn more about UCS@school
1
Administration
2
Products
3
Integrations
Step 3 of 3

Connect more than 60+ Integrations Flexibly.

Nubus and UCS@school can be flexibly integrated into existing IT landscapes.

Preconfigured Integration Packages

Connect common applications such as Open-Xchange App Suite, Nextcloud, ownCloud, and other applications - ready for use quickly and without development effort.

Open Interfaces & Standards

OIDC, SAML, LDAP, and REST-based APIs: for flexible integration with external systems, automated data exchange and integration.

Freely Configurable Application Landscapes

Build individual application landscapes without limitations when selecting the applications you use.

View All Integrations Book a demo
These Are the Challenges Nubus Solves

Where IT Reaches Its Limits Today

Whether password chaos, system dependencies, or manual IT processes: identity and access management costs time and resources every day. Nubus reduces this complexity and creates centralized control.

Loss of Control

Proprietary Systems Block Your IT Strategy

Closed systems and increasing dependencies make any change more difficult. IT decisions are increasingly dictated by individual vendors.

Solution

Nubus is built entirely on open source and open standards. This ensures that you always retain full control over your identity and access architecture. No proprietary dependencies on individual vendors arise. Your IT remains extensible and independently manageable at all times.

Access Barriers

Too Many Logins Are Slowing Down Your Users

Every application requires its own credentials. This leads to high day-to-day complexity and unnecessary friction.

Solution

Nubus centralizes identities in a secure identity system. Users sign in once and gain access to all connected applications. This reduces password sprawl and increases security through consistent access management. Your users work more efficiently, without additional barriers.

Dependency

Your IT Strategy Depends on Microsoft

Your IT strategy is largely determined by your vendors’ specifications instead of being actively shaped by you. This significantly limits your ability to act.

Solution

Nubus decouples your identity and access management from individual vendors. Existing Microsoft environments can be integrated, extended, or gradually replaced. You retain control over your identities and decide for yourself how your system landscape evolves. This is how true digital sovereignty is created.

Application Access

Digital Applications Are Difficult to Access

In the education sector, there are many established learning applications, but their use often fails because of complex account management and missing learning groups. This makes digital teaching and learning more difficult in everyday practice.

Solution

Nubus enables the centralized provisioning and management of applications for all user groups. Teachers and students receive simple, role-based access to the services they need. Applications are securely integrated and centrally managed. This makes digital education possible without technical friction.

User Lifecycle

Onboarding and Offboarding Take Up Unnecessary Time

User accounts are often created automatically, but permissions management and access removal frequently still happen manually. This makes processes slow, error-prone, and difficult to scale.

Solution

With Nubus, the entire user lifecycle is mapped in an automated way. New employees, students, or partners are created centrally and automatically receive the appropriate permissions. When they leave, access is withdrawn in a controlled manner. This reduces manual effort and minimizes security risks.

Lack of Transparency

Applications Do Not Know Your Users

Access rights and roles are often not maintained consistently. Users cannot find their team members in applications or they see different permissions. This creates discontinuities and unnecessary complexity.

Solution

Nubus synchronizes identities, roles, and organizational structures with all connected applications. As a result, systems receive consistent user data and permissions. Applications “understand” who their users are and what rights they have. This reduces complexity and improves manageability.

Loss of Time

Account Management Becomes a Daily Burden

Multiple passwords, regular reset requests, and manual administration consume IT resources every day.

Solution

Nubus reduces the number of separate accounts through centralized identity management. Users authenticate once and access all approved applications and services. Password resets and duplicate accounts are significantly reduced. This provides noticeable relief for IT teams in day-to-day operations.

Legacy Systems

Identities Between Cloud Pressure and Loss of Control

The pressure doesn’t arise from missing functionality, but from vendor-driven cloud requirements. Identities are supposed to be moved to the cloud – but many organizations want to retain control.

Solution

Nubus enables centralized and sovereign identity management—independent of cloud requirements. Existing directory structures are retained and integrated, without having to move users and permissions to external clouds. This allows organizations to retain control and remain flexible.

Workplace

Standard Applications for the Digital Workplace Are Not Sovereign

Many organizations are heavily dependent on vendor specifications, pricing models, and cloud pressure in their digital workplace. An independently manageable IT strategy across all systems is hardly possible.

Solution

Nubus creates a central identity and access platform for all digital work environments. Applications, users, and permissions are managed consistently. This creates a controllable and sovereign IT structure across all systems. Organizations retain full authority over their digital workplace environment at all times.

Compliance

Security and Compliance Requirements Are Difficult to Meet

Increasing regulatory requirements significantly increase the effort involved in IT security and data protection.

Solution

Nubus supports compliance with European data protection and security requirements through consistent identity and permission management. Access is traceable at all times and can be managed based on rules. The solution is consistently aligned with GDPR and BSI IT Baseline Protection. This makes compliance operationally manageable instead of complex.

A Comparison

There's more to Nubus

FeatureNubusEntra ID / OktaKeycloakAuthentik
100% Open Source
EU Legal Area
Freedom of Choice of Operating Model
Enterprise Product
Enterprise Support
Compliance (GPDR/ BSI)
Admin Interface (IT)
Admin Interface (Business Unit)
End User Portal
Cost Stability
* Partially fulfilled
** Depending on the third-party providers used and individual maintenance contracts.
*** Price developments for SaaS offerings can vary and are often associated with limited switching options.
Schleswig-Holstein: 100% digitally sovereign

``With Univention Nubus, we are building the Open Source foundation for our new sovereign IT infrastructure. It gives us full control, helps us deliver well-integrated applications, and creates a clear migration path for existing systems.``

Dirk Schröter
Dirk Schrödter
Minister and Head of the State Chancellery of Schleswig-Holstein
35.000
identities managed sovereignly
9
Ministries
60
State Authorities

As a pioneer, Schleswig-Holstein consistently relies on digital sovereignty and open source. Univention orchestrates the state’s web workplace, provides the central Identity & Access Management with the necessary connectors, and ensures Single Sign-on.

Building on Nubus, a central directory service is also being created as a sovereign alternative to Active Directory for the entire state administration.

Industries & Areas of Use

Made for your organization.

Nubus adapts to your requirements, whether public administration, education sector, or companies.
Öffentliche Verwaltung
  • Less complexity in IT landscapes that have evolved over time
  • Digital sovereignty without vendor dependencies
  • Secure access to specialized procedures and administrative applications

Bildungssektor
  • Less effort in managing school identities
  • Easy access to all digital learning offerings
  • More time for education instead of administration

Unternehmen
  • Manage identities and access centrally across all systems
  • Secure collaboration without password and permission chaos
  • Create flexible IT structures and grow independently

Customer Voices

Trust That Counts: What Our Customers Say

“Nubus is an important building block in the architecture of openDesk. As a central portal with comprehensive role and permission management, it enables us to offer user management and, where needed, to connect existing user management systems.”
“Open source can be this simple.”
“With Univention, we had a reliable partner at our side throughout the entire project – one that not only already had a suitable product in its portfolio, but also adapted it excellently to our specific requirements and will continue to offer qualified third-level support for it in the future.”
“We were able to reduce our administrative effort while at the same time ensuring the compliance and security of our environment.”
“UCS@school reduces and centralizes the support effort for our IT, and thanks to the reliable and consistent pedagogical features, our teachers can once again focus more on their actual tasks.”
“Univention has been a reliable partner for fifteen years in operating and further developing the pedagogical IT landscape of the schools in the city of Bremen. The introduction of the new import interface and the resulting opportunities for greater flexibility represent real added value for our teachers.”