diff --git a/Code/Light.GuardClauses.Performance/StringAssertions/ContainsBenchmark.cs b/Code/Light.GuardClauses.Performance/FrameworkExtensions/ContainsBenchmark.cs
similarity index 96%
rename from Code/Light.GuardClauses.Performance/StringAssertions/ContainsBenchmark.cs
rename to Code/Light.GuardClauses.Performance/FrameworkExtensions/ContainsBenchmark.cs
index 55b4b894..32c9c29e 100644
--- a/Code/Light.GuardClauses.Performance/StringAssertions/ContainsBenchmark.cs
+++ b/Code/Light.GuardClauses.Performance/FrameworkExtensions/ContainsBenchmark.cs
@@ -1,7 +1,7 @@
 using System;
 using BenchmarkDotNet.Attributes;
 
-namespace Light.GuardClauses.Performance.StringAssertions
+namespace Light.GuardClauses.FrameworkExtensions.Performance.StringAssertions
 {
     public class ContainsOrdinalBenchmark
     {
diff --git a/Code/Light.GuardClauses/Check.Contains.cs b/Code/Light.GuardClauses/FrameworkExtensions/StringExtensions.Contains.cs
similarity index 93%
rename from Code/Light.GuardClauses/Check.Contains.cs
rename to Code/Light.GuardClauses/FrameworkExtensions/StringExtensions.Contains.cs
index 5e5c9f23..703e9be7 100644
--- a/Code/Light.GuardClauses/Check.Contains.cs
+++ b/Code/Light.GuardClauses/FrameworkExtensions/StringExtensions.Contains.cs
@@ -3,9 +3,9 @@
 using JetBrains.Annotations;
 using NotNullAttribute = System.Diagnostics.CodeAnalysis.NotNullAttribute;
 
-namespace Light.GuardClauses;
+namespace Light.GuardClauses.FrameworkExtensions;
 
-public static partial class Check
+public static partial class StringExtensions
 {
     /// <summary>
     /// Checks if the string contains the specified value using the given comparison type.
diff --git a/Code/Light.GuardClauses/FrameworkExtensions/StringExtensions.cs b/Code/Light.GuardClauses/FrameworkExtensions/StringExtensions.cs
new file mode 100644
index 00000000..d631d79e
--- /dev/null
+++ b/Code/Light.GuardClauses/FrameworkExtensions/StringExtensions.cs
@@ -0,0 +1,7 @@
+namespace Light.GuardClauses.FrameworkExtensions;
+
+/// <summary>
+/// Provides extension methods for the <see cref="string" /> class.
+/// </summary>
+// ReSharper disable once RedundantTypeDeclarationBody -- required for Source Code Transformation
+public static partial class StringExtensions { }