diff --git a/alfa-client/libs/collaboration-shared/src/lib/collaboration.model.ts b/alfa-client/libs/collaboration-shared/src/lib/collaboration.model.ts
index 5cb0cb4409c1bf54e9447410b2e7bc02b54f1b30..73bc3b334e89a941faf5085cd7a8c402d61c9ba7 100644
--- a/alfa-client/libs/collaboration-shared/src/lib/collaboration.model.ts
+++ b/alfa-client/libs/collaboration-shared/src/lib/collaboration.model.ts
@@ -5,7 +5,7 @@ export interface Collaboration {
   titel: string;
   anfrage: string;
   zustaendigeStelle: ResourceUri;
-  collaborationLevel?: number;
+  collaborationLevel: number;
 }
 
 export interface CollaborationResource extends Collaboration, Resource, ListItemResource {}
diff --git a/alfa-client/libs/organisations-einheit/.eslintrc.json b/alfa-client/libs/organisations-einheit/.eslintrc.json
new file mode 100644
index 0000000000000000000000000000000000000000..b953e5d37d40148217ab14a01859ea0cb43d9ebc
--- /dev/null
+++ b/alfa-client/libs/organisations-einheit/.eslintrc.json
@@ -0,0 +1,33 @@
+{
+  "extends": ["../../.eslintrc.json"],
+  "ignorePatterns": ["!**/*"],
+  "overrides": [
+    {
+      "files": ["*.ts"],
+      "extends": ["plugin:@nx/angular", "plugin:@angular-eslint/template/process-inline-templates"],
+      "rules": {
+        "@angular-eslint/directive-selector": [
+          "error",
+          {
+            "type": "attribute",
+            "prefix": "lib",
+            "style": "camelCase"
+          }
+        ],
+        "@angular-eslint/component-selector": [
+          "error",
+          {
+            "type": "element",
+            "prefix": "lib",
+            "style": "kebab-case"
+          }
+        ]
+      }
+    },
+    {
+      "files": ["*.html"],
+      "extends": ["plugin:@nx/angular-template"],
+      "rules": {}
+    }
+  ]
+}
diff --git a/alfa-client/libs/organisations-einheit/README.md b/alfa-client/libs/organisations-einheit/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..b9448bd56f8ab68884bf1b91f12b11efbc3125b0
--- /dev/null
+++ b/alfa-client/libs/organisations-einheit/README.md
@@ -0,0 +1,7 @@
+# organisations-einheit
+
+This library was generated with [Nx](https://nx.dev).
+
+## Running unit tests
+
+Run `nx test organisations-einheit` to execute the unit tests.
diff --git a/alfa-client/libs/organisations-einheit/jest.config.ts b/alfa-client/libs/organisations-einheit/jest.config.ts
new file mode 100644
index 0000000000000000000000000000000000000000..e6c9a97beadf6ca3349773fad970e6d5b10595de
--- /dev/null
+++ b/alfa-client/libs/organisations-einheit/jest.config.ts
@@ -0,0 +1,21 @@
+export default {
+  displayName: 'organisations-einheit',
+  preset: '../../jest.preset.js',
+  setupFilesAfterEnv: ['<rootDir>/src/test-setup.ts'],
+  coverageDirectory: '../../coverage/libs/organisations-einheit',
+  transform: {
+    '^.+\\.(ts|mjs|js|html)$': [
+      'jest-preset-angular',
+      {
+        tsconfig: '<rootDir>/tsconfig.spec.json',
+        stringifyContentPathRegex: '\\.(html|svg)$',
+      },
+    ],
+  },
+  transformIgnorePatterns: ['node_modules/(?!.*\\.mjs$)'],
+  snapshotSerializers: [
+    'jest-preset-angular/build/serializers/no-ng-attributes',
+    'jest-preset-angular/build/serializers/ng-snapshot',
+    'jest-preset-angular/build/serializers/html-comment',
+  ],
+};
diff --git a/alfa-client/libs/organisations-einheit/project.json b/alfa-client/libs/organisations-einheit/project.json
new file mode 100644
index 0000000000000000000000000000000000000000..9fdc22773ddc51c57a9f84e937fdedbb76fabb80
--- /dev/null
+++ b/alfa-client/libs/organisations-einheit/project.json
@@ -0,0 +1,22 @@
+{
+  "name": "organisations-einheit",
+  "$schema": "../../node_modules/nx/schemas/project-schema.json",
+  "sourceRoot": "libs/organisations-einheit/src",
+  "prefix": "alfa",
+  "projectType": "library",
+  "tags": [],
+  "targets": {
+    "test": {
+      "executor": "@nx/jest:jest",
+      "outputs": ["{workspaceRoot}/coverage/{projectRoot}"],
+      "options": {
+        "tsConfig": "libs/organisations-einheit/tsconfig.spec.json",
+        "jestConfig": "libs/organisations-einheit/jest.config.ts"
+      }
+    },
+    "lint": {
+      "executor": "@nx/eslint:lint",
+      "outputs": ["{options.outputFile}"]
+    }
+  }
+}
diff --git a/alfa-client/libs/organisations-einheit/src/index.ts b/alfa-client/libs/organisations-einheit/src/index.ts
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/alfa-client/libs/organisations-einheit/src/test-setup.ts b/alfa-client/libs/organisations-einheit/src/test-setup.ts
new file mode 100644
index 0000000000000000000000000000000000000000..03a84127dca1b63fa485fc51d162cec76921b596
--- /dev/null
+++ b/alfa-client/libs/organisations-einheit/src/test-setup.ts
@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2022 Das Land Schleswig-Holstein vertreten durch den
+ * Ministerpräsidenten des Landes Schleswig-Holstein
+ * Staatskanzlei
+ * Abteilung Digitalisierung und zentrales IT-Management der Landesregierung
+ *
+ * Lizenziert unter der EUPL, Version 1.2 oder - sobald
+ * diese von der Europäischen Kommission genehmigt wurden -
+ * Folgeversionen der EUPL ("Lizenz");
+ * Sie dürfen dieses Werk ausschließlich gemäß
+ * dieser Lizenz nutzen.
+ * Eine Kopie der Lizenz finden Sie hier:
+ *
+ * https://joinup.ec.europa.eu/collection/eupl/eupl-text-eupl-12
+ *
+ * Sofern nicht durch anwendbare Rechtsvorschriften
+ * gefordert oder in schriftlicher Form vereinbart, wird
+ * die unter der Lizenz verbreitete Software "so wie sie
+ * ist", OHNE JEGLICHE GEWÄHRLEISTUNG ODER BEDINGUNGEN -
+ * ausdrücklich oder stillschweigend - verbreitet.
+ * Die sprachspezifischen Genehmigungen und Beschränkungen
+ * unter der Lizenz sind dem Lizenztext zu entnehmen.
+ */
+import '@testing-library/jest-dom';
+import 'jest-preset-angular/setup-jest';
+
+import { getTestBed } from '@angular/core/testing';
+import { BrowserDynamicTestingModule, platformBrowserDynamicTesting } from '@angular/platform-browser-dynamic/testing';
+
+getTestBed().resetTestEnvironment();
+getTestBed().initTestEnvironment(BrowserDynamicTestingModule, platformBrowserDynamicTesting(), {
+  teardown: { destroyAfterEach: false },
+  errorOnUnknownProperties: true,
+  errorOnUnknownElements: true,
+});
diff --git a/alfa-client/libs/organisations-einheit/tsconfig.json b/alfa-client/libs/organisations-einheit/tsconfig.json
new file mode 100644
index 0000000000000000000000000000000000000000..7cc6baf2f58ed5ccfba098131996f579979e9f18
--- /dev/null
+++ b/alfa-client/libs/organisations-einheit/tsconfig.json
@@ -0,0 +1,16 @@
+{
+  "extends": "../../tsconfig.base.json",
+  "files": [],
+  "include": [],
+  "references": [
+    {
+      "path": "./tsconfig.lib.json"
+    },
+    {
+      "path": "./tsconfig.spec.json"
+    }
+  ],
+  "compilerOptions": {
+    "target": "es2022"
+  }
+}
diff --git a/alfa-client/libs/organisations-einheit/tsconfig.lib.json b/alfa-client/libs/organisations-einheit/tsconfig.lib.json
new file mode 100644
index 0000000000000000000000000000000000000000..464f01e6b2b218c0f70e15ac25dd8580bdc38f6e
--- /dev/null
+++ b/alfa-client/libs/organisations-einheit/tsconfig.lib.json
@@ -0,0 +1,19 @@
+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "outDir": "../../dist/out-tsc",
+    "target": "es2015",
+    "declaration": true,
+    "declarationMap": true,
+    "inlineSources": true,
+    "types": [],
+    "lib": ["dom", "es2018"]
+  },
+  "angularCompilerOptions": {
+    "skipTemplateCodegen": true,
+    "strictMetadataEmit": true,
+    "enableResourceInlining": true
+  },
+  "exclude": ["src/test-setup.ts", "**/*.spec.ts", "jest.config.ts"],
+  "include": ["**/*.ts"]
+}
diff --git a/alfa-client/libs/organisations-einheit/tsconfig.spec.json b/alfa-client/libs/organisations-einheit/tsconfig.spec.json
new file mode 100644
index 0000000000000000000000000000000000000000..3a690070a7f5e48080dd36522d6a0db384d940aa
--- /dev/null
+++ b/alfa-client/libs/organisations-einheit/tsconfig.spec.json
@@ -0,0 +1,12 @@
+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "outDir": "../../dist/out-tsc",
+    "module": "commonjs",
+    "types": ["jest", "node"],
+    "target": "ES2022",
+    "useDefineForClassFields": false
+  },
+  "files": ["src/test-setup.ts"],
+  "include": ["**/*.spec.ts", "**/*.d.ts", "jest.config.ts"]
+}
diff --git a/alfa-client/tsconfig.base.json b/alfa-client/tsconfig.base.json
index 63b6a42cd7681cb3f77bb8a38a1eea56cc5a527b..af0d5d6a44f869d3f783c69d2d45741471662239 100644
--- a/alfa-client/tsconfig.base.json
+++ b/alfa-client/tsconfig.base.json
@@ -40,6 +40,7 @@
       "@alfa-client/loesch-anforderung-shared": ["libs/loesch-anforderung-shared/src/index.ts"],
       "@alfa-client/navigation": ["libs/navigation/src/index.ts"],
       "@alfa-client/navigation-shared": ["libs/navigation-shared/src/index.ts"],
+      "@alfa-client/organisations-einheit": ["libs/organisations-einheit/src/index.ts"],
       "@alfa-client/postfach": ["libs/postfach/src/index.ts"],
       "@alfa-client/postfach-shared": ["libs/postfach-shared/src/index.ts"],
       "@alfa-client/resource-redirect": ["libs/resource-redirect/src/index.ts"],
@@ -62,7 +63,7 @@
       "@alfa-client/zustaendige-stelle-shared": ["libs/zustaendige-stelle-shared/src/index.ts"],
       "@ods/component": ["libs/design-component/src/index.ts"],
       "@ods/system": ["libs/design-system/src/index.ts"],
-      "authentication": ["libs/authentication/src/index.ts"]
+      "authentication": ["libs/authentication/src/index.ts"],
     }
   },
   "exclude": ["node_modules", "tmp"]