The Organization Hierarchy extension transforms CKAN’s flat organization structure into a sophisticated tree-based hierarchy system, enabling complex organizational relationships and improved navigation. This extension allows organizations to be arranged in parent-child relationships, creating multi-level organizational trees that better reflect real-world institutional structures. The system provides intuitive forms for selecting parent organizations during organization creation and editing, with visual tree displays that show the complete organizational context. Users can navigate through organizational hierarchies with breadcrumb navigation and expanded search capabilities that include datasets from sub-organizations. The extension seamlessly integrates with CKAN’s existing organization functionality while adding hierarchical display templates and enhanced search filters. It supports unlimited nesting levels, automatic inheritance of permissions, and provides both display and form plugins for flexible implementation. Essential for government agencies, research institutions, and large enterprises requiring structured organizational representation with clear reporting relationships and delegated authority models.