diff --git a/.docforge/contribute.yaml b/.docforge/contribute.yaml
index e01ab6d03..2d61f0ed2 100644
--- a/.docforge/contribute.yaml
+++ b/.docforge/contribute.yaml
@@ -127,6 +127,16 @@ structure:
         - dir: development
           structure:
           - fileTree: https://github.com/gardener/gardener-extension-provider-openstack/tree/master/docs/development
+      - dir: gardener-extension-provider-ironcore
+        structure:
+        - file: _index.md
+          frontmatter:
+            title: Provider IronCore
+            description: Developer documentation for the IronCore cloud provider extension
+          source: https://github.com/ironcore-dev/gardener-extension-provider-ironcore/blob/main/README.md
+        - dir: development
+          structure:
+          - fileTree: https://github.com/ironcore-dev/gardener-extension-provider-ironcore/tree/main/docs/development
     - dir: gardener-extension-shoot-dns-service
       structure:
       - file: _index.md
diff --git a/.docforge/documentation/gardener-extensions/infrastructure.yaml b/.docforge/documentation/gardener-extensions/infrastructure.yaml
index 80cb6aad1..f7851a576 100644
--- a/.docforge/documentation/gardener-extensions/infrastructure.yaml
+++ b/.docforge/documentation/gardener-extensions/infrastructure.yaml
@@ -53,6 +53,20 @@ structure:
   - fileTree: https://github.com/gardener/gardener-extension-provider-openstack/tree/master/docs
     excludeFiles:
       - "development/"
+- dir: gardener-extension-provider-ironcore
+  structure:
+  - file: _index.md
+    frontmatter:
+      title: Provider IronCore
+      description: Gardener extension controller for the IronCore cloud provider
+    source: https://github.com/ironcore-dev/gardener-extension-provider-ironcore/blob/main/README.md
+  - fileTree: https://github.com/ironcore-dev/gardener-extension-provider-ironcore/tree/main/docs
+    excludeFiles:
+      - "development/"
+- dir: gardener-extension-provider-metal
+  structure:
+  - file: _index.md
+    source: /hugo/content/docs/extensions/infrastructure-extensions/gardener-extension-provider-metal/index.md
 - dir: gardener-extension-provider-stackit
   structure:
   - file: _index.md
diff --git a/hugo/content/docs/extensions/infrastructure-extensions/gardener-extension-provider-metal/index.md b/hugo/content/docs/extensions/infrastructure-extensions/gardener-extension-provider-metal/index.md
new file mode 100644
index 000000000..bac6e4e84
--- /dev/null
+++ b/hugo/content/docs/extensions/infrastructure-extensions/gardener-extension-provider-metal/index.md
@@ -0,0 +1,25 @@
+---
+description: Gardener extension controller for the metal-stack cloud provider
+github_repo: 'https://github.com/gardener/documentation'
+github_subdir: >-
+  hugo/content/docs/extensions/infrastructure-extensions/gardener-extension-provider-metal
+params:
+  github_branch: master
+path_base_for_github_subdir:
+  from: >-
+    content/docs/extensions/infrastructure-extensions/gardener-extension-provider-metal/index.md
+  to: index.md
+title: Provider metal-stack
+prev: false
+next: false
+local: true
+---
+
+# Gardener Extension Provider metal-stack
+
+The extension for the metal-stack provider enables Gardener to manage shoot clusters on [metal-stack](https://metal-stack.io/) infrastructure.
+
+> [!NOTE]
+> The metal-stack extension is maintained by metal-stack in their own GitHub organization.
+
+You can find more information in the [`metal-stack/gardener-extension-provider-metal`](https://github.com/metal-stack/gardener-extension-provider-metal) GitHub repository.