The Organization Portals extension transforms CKAN into a multi-tenant platform where each organization can maintain its own branded portal website with independent content management, custom themes, and organizational autonomy while sharing the underlying data infrastructure and administrative framework. This powerful extension enables organizations to create fully customized sub-portals with unique branding, navigation structures, and content layouts while maintaining centralized user management and data sharing capabilities. The system provides comprehensive theme customization options including logos, color schemes, typography, and layout templates with organization-specific styling that reflects individual institutional identities. Advanced features include independent content management systems for each organization, custom page creation with rich text editing, and specialized widgets for displaying organizational datasets, news, and announcements. The extension supports hierarchical organization structures, cross-organization collaboration features, and flexible data sharing policies with granular access controls. Administrative tools provide organization-level administration panels, content workflow management, and detailed analytics on organizational portal usage and engagement. Integration capabilities include single sign-on across organizational portals, unified search functionality, and seamless data federation between organizations while maintaining portal independence. The system supports custom domain mapping, SSL certificate management, and CDN integration for professional organizational web presence. Performance optimizations ensure efficient multi-tenant architecture with isolated caching, scalable resource management, and optimized content delivery. Essential for consortiums managing multiple member organizations, government agencies with departmental independence, academic networks with institutional portals, and enterprise deployments where organizational autonomy, brand identity, and independent web presence are critical while maintaining collaborative data sharing and centralized platform management.