Umbraco

Umbraco is a .NET open-source CMS that's been around since 2007 and is widely used in Europe. It organizes content in a tree structure that's visual and intuitive, and it includes built-in versioning so you can track and rollback changes. Publishing workflows support multi-stage approval processes for teams.

Umbraco is a strong fit for enterprises and agencies on the Microsoft stack who need a solid publishing platform. The tree-based navigation appeals to editors who think hierarchically. It's more mature than headless-only platforms and more developer-friendly than drag-and-drop builders.