diff --git a/src/ProjNet/CoordinateSystems/Transformations/ConcatenatedTransform.cs b/src/ProjNet/CoordinateSystems/Transformations/ConcatenatedTransform.cs
index 9674db5c..2a056e12 100644
--- a/src/ProjNet/CoordinateSystems/Transformations/ConcatenatedTransform.cs
+++ b/src/ProjNet/CoordinateSystems/Transformations/ConcatenatedTransform.cs
@@ -25,7 +25,7 @@ namespace ProjNet.CoordinateSystems.Transformations
     /// 
     /// </summary>
     [Serializable] 
-    internal class ConcatenatedTransform : MathTransform, ICoordinateTransformationCore
+    public class ConcatenatedTransform : MathTransform, ICoordinateTransformationCore
 	{
         /// <summary>
         /// 
diff --git a/src/ProjNet/CoordinateSystems/Transformations/CoordinateTransformation.cs b/src/ProjNet/CoordinateSystems/Transformations/CoordinateTransformation.cs
index b44570c6..5f9dcf57 100644
--- a/src/ProjNet/CoordinateSystems/Transformations/CoordinateTransformation.cs
+++ b/src/ProjNet/CoordinateSystems/Transformations/CoordinateTransformation.cs
@@ -39,7 +39,7 @@ public class CoordinateTransformation : ICoordinateTransformation
 		/// <param name="authorityCode">Authority code</param>
 		/// <param name="areaOfUse">Area of use</param>
 		/// <param name="remarks">Remarks</param>
-		internal CoordinateTransformation(CoordinateSystem sourceCS, CoordinateSystem targetCS, TransformType transformType, MathTransform mathTransform, 
+		public CoordinateTransformation(CoordinateSystem sourceCS, CoordinateSystem targetCS, TransformType transformType, MathTransform mathTransform, 
 										string name, string authority, long authorityCode, string areaOfUse, string remarks)
 		{
 			TargetCS = targetCS;