diff --git a/sdv/__init__.py b/sdv/__init__.py
index ab9655cdb..16f24fb17 100644
--- a/sdv/__init__.py
+++ b/sdv/__init__.py
@@ -13,9 +13,10 @@
 import warnings
 from importlib.metadata import entry_points
 from operator import attrgetter
+from types import ModuleType
 
 from sdv import (
-    constraints, data_processing, datasets, evaluation, lite, metadata, metrics, multi_table,
+    constraints, data_processing, datasets, evaluation, io, lite, metadata, metrics, multi_table,
     sampling, sequential, single_table, version)
 
 __all__ = [
@@ -23,6 +24,7 @@
     'data_processing',
     'datasets',
     'evaluation',
+    'io',
     'lite',
     'metadata',
     'metrics',
@@ -105,6 +107,11 @@ def _find_addons():
             warnings.warn(msg)
             continue
 
+        if isinstance(addon, ModuleType):
+            addon_module_name = f'{addon_target.__name__}.{addon_name}'
+            if addon_module_name not in sys.modules:
+                sys.modules[addon_module_name] = addon
+
         setattr(addon_target, addon_name, addon)
 
 
diff --git a/sdv/io/__init__.py b/sdv/io/__init__.py
new file mode 100644
index 000000000..913ecf279
--- /dev/null
+++ b/sdv/io/__init__.py
@@ -0,0 +1 @@
+"""I/O module."""
diff --git a/tests/unit/test___init__.py b/tests/unit/test___init__.py
index 41fc19736..e94f3b214 100644
--- a/tests/unit/test___init__.py
+++ b/tests/unit/test___init__.py
@@ -1,4 +1,5 @@
 import sys
+from types import ModuleType
 from unittest.mock import Mock, patch
 
 import pytest
@@ -11,6 +12,7 @@
 def mock_sdv():
     sdv_module = sys.modules['sdv']
     sdv_mock = Mock()
+    sdv_mock.submodule.__name__ = 'sdv.submodule'
     sys.modules['sdv'] = sdv_mock
     yield sdv_mock
     sys.modules['sdv'] = sdv_module
@@ -20,9 +22,10 @@ def mock_sdv():
 def test__find_addons_module(entry_points_mock, mock_sdv):
     """Test loading an add-on."""
     # Setup
+    add_on_mock = Mock(spec=ModuleType)
     entry_point = Mock()
     entry_point.name = 'sdv.submodule.entry_name'
-    entry_point.load.return_value = 'entry_point'
+    entry_point.load.return_value = add_on_mock
     entry_points_mock.return_value = [entry_point]
 
     # Run
@@ -30,7 +33,8 @@ def test__find_addons_module(entry_points_mock, mock_sdv):
 
     # Assert
     entry_points_mock.assert_called_once_with(group='sdv_modules')
-    assert mock_sdv.submodule.entry_name == 'entry_point'
+    assert mock_sdv.submodule.entry_name == add_on_mock
+    assert sys.modules['sdv.submodule.entry_name'] == add_on_mock
 
 
 @patch.object(sdv, 'entry_points')