diff --git a/test/Admin.Test/Admin.Test.csproj b/test/Admin.Test/Admin.Test.csproj
index 01d5be219e..f1b42ae5e0 100644
--- a/test/Admin.Test/Admin.Test.csproj
+++ b/test/Admin.Test/Admin.Test.csproj
@@ -10,6 +10,7 @@
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="$(MicrosoftNetTestSdkVersion)" />
+    <PackageReference Include="NSubstitute" Version="5.1.0" />
     <PackageReference Include="xunit" Version="$(XUnitVersion)" />
     <PackageReference Include="xunit.runner.visualstudio"
       Version="$(XUnitRunnerVisualStudioVersion)">
diff --git a/test/Admin.Test/AdminConsole/Components/Pages/ListOrganizationsPageTests.cs b/test/Admin.Test/AdminConsole/Components/Pages/ListOrganizationsPageTests.cs
new file mode 100644
index 0000000000..ddf936079d
--- /dev/null
+++ b/test/Admin.Test/AdminConsole/Components/Pages/ListOrganizationsPageTests.cs
@@ -0,0 +1,38 @@
+using Bit.Admin.AdminConsole.Components.Pages.Organizations;
+using Bit.Core.Repositories;
+using Bit.Core.Settings;
+using Bunit;
+using Microsoft.Extensions.DependencyInjection;
+using NSubstitute;
+
+namespace Admin.Test.AdminConsole.Components.Pages;
+
+public class ListOrganizationsPageTests : TestContext
+{
+    private IOrganizationRepository _organizationRepository;
+    private IGlobalSettings _globalSettings;
+
+    public ListOrganizationsPageTests()
+    {
+        _organizationRepository = Substitute.For<IOrganizationRepository>();
+        _globalSettings = Substitute.For<IGlobalSettings>();
+
+        Services.AddSingleton(_organizationRepository);
+        Services.AddSingleton(_globalSettings);
+    }
+
+    [Fact]
+    public void ListOrganizationsPage_Renders_EmailFieldAsInvalid_WhenInvalidEmailAddressIsEntered()
+    {
+        // Arrange
+        var cut = RenderComponent<ListOrganizationsPage>();
+
+        // Act
+
+        cut.Find("input[name='SearchForm.Email']").Change("@@");
+        cut.Find("form").Submit();
+
+        // Assert
+        Assert.Contains("invalid", cut.Find("input[name='SearchForm.Email']").Attributes["class"].Value);
+    }
+}