diff --git a/src/aki_prj23_transparenzregister/utils/data_extraction/unternehmensregister/transform/common.py b/src/aki_prj23_transparenzregister/utils/data_extraction/unternehmensregister/transform/common.py
index e69de29..25f54b1 100644
--- a/src/aki_prj23_transparenzregister/utils/data_extraction/unternehmensregister/transform/common.py
+++ b/src/aki_prj23_transparenzregister/utils/data_extraction/unternehmensregister/transform/common.py
@@ -0,0 +1 @@
+"""Common functions for data transformation."""
diff --git a/src/aki_prj23_transparenzregister/utils/data_extraction/unternehmensregister/transform/v1/__init__.py b/src/aki_prj23_transparenzregister/utils/data_extraction/unternehmensregister/transform/v1/__init__.py
index e69de29..a172906 100644
--- a/src/aki_prj23_transparenzregister/utils/data_extraction/unternehmensregister/transform/v1/__init__.py
+++ b/src/aki_prj23_transparenzregister/utils/data_extraction/unternehmensregister/transform/v1/__init__.py
@@ -0,0 +1 @@
+"""Module for transforming Unternehmensregister data from v1 to Transparenzregister API data model."""