diff --git a/source/RobotAPI/libraries/aron/converter/ivt/IVTConverter.h b/source/RobotAPI/libraries/aron/converter/ivt/IVTConverter.h
index f2b7972b35515ef05e86568764ae60071d0616c5..b0fe1530645d8f3016afafeaf56f45d05d775107 100644
--- a/source/RobotAPI/libraries/aron/converter/ivt/IVTConverter.h
+++ b/source/RobotAPI/libraries/aron/converter/ivt/IVTConverter.h
@@ -44,3 +44,9 @@ namespace armarx::aron::data::converter
         static data::NDArrayPtr ConvertFromCByteImage(const std::shared_ptr<CByteImage>&);
     };
 } // namespace armarx::aron::data::converter
+
+// legacy
+namespace armarx::aron::converter
+{
+    using AronIVTConverter = ::armarx::aron::data::converter::AronIVTConverter;
+}
diff --git a/source/RobotAPI/libraries/aron/converter/json/NLohmannJSONConverter.h b/source/RobotAPI/libraries/aron/converter/json/NLohmannJSONConverter.h
index 4b64a2f2485c1fbf9a1b5eac655171cabac33dcc..1e9044cb3beea01195c87629e6464169ed392f43 100644
--- a/source/RobotAPI/libraries/aron/converter/json/NLohmannJSONConverter.h
+++ b/source/RobotAPI/libraries/aron/converter/json/NLohmannJSONConverter.h
@@ -56,3 +56,9 @@ namespace armarx::aron::type::converter
         static void ConvertFromNlohmannJSON(aron::type::VariantPtr& a, const nlohmann::json& e);
     };
 } // namespace armarx::aron::type::converter
+
+// legacy
+namespace armarx::aron::converter
+{
+    using AronNlohmannJSONConverter = ::armarx::aron::data::converter::AronNlohmannJSONConverter;
+}
diff --git a/source/RobotAPI/libraries/aron/converter/opencv/OpenCVConverter.h b/source/RobotAPI/libraries/aron/converter/opencv/OpenCVConverter.h
index 60efab3d54dfebd89fd778c7f0996ade24b35cf7..9b3dcc79cb8a9c82c8e588b332a52d8e742e53f0 100644
--- a/source/RobotAPI/libraries/aron/converter/opencv/OpenCVConverter.h
+++ b/source/RobotAPI/libraries/aron/converter/opencv/OpenCVConverter.h
@@ -45,3 +45,9 @@ namespace armarx::aron::data::converter
     };
 
 } // namespace armarx::aron::data::converter
+
+// legacy
+namespace armarx::aron::converter
+{
+    using AronOpenCVConverter = ::armarx::aron::data::converter::AronOpenCVConverter;
+}
diff --git a/source/RobotAPI/libraries/aron/converter/pcl/PCLConverter.h b/source/RobotAPI/libraries/aron/converter/pcl/PCLConverter.h
index 21a922cfb303de6a2c03b49fc5f6e920004de4f1..77498aaf815ce7ae3f7736ac4831059bd2adcde2 100644
--- a/source/RobotAPI/libraries/aron/converter/pcl/PCLConverter.h
+++ b/source/RobotAPI/libraries/aron/converter/pcl/PCLConverter.h
@@ -66,3 +66,9 @@ namespace armarx::aron::data::converter
     };
 
 } // namespace armarx::aron::data::converter
+
+// legacy
+namespace armarx::aron::converter
+{
+    using AronPCLConverter = ::armarx::aron::data::converter::AronPCLConverter;
+}