diff --git a/pycdi/__init__.py b/pycdi/__init__.py
index fff012f..bf06f43 100644
--- a/pycdi/__init__.py
+++ b/pycdi/__init__.py
@@ -1,3 +1,3 @@
 # -*- encoding: utf-8 -*-
-from .core import Inject, Producer, CDIContainer
+from .core import Inject, Producer, CDIContainer, Component, Service
 from .utils import Singleton, Provide
diff --git a/pycdi/core.py b/pycdi/core.py
index 3e08943..918d34b 100644
--- a/pycdi/core.py
+++ b/pycdi/core.py
@@ -86,6 +86,10 @@ def last(it):
     return it[-1]
 
 
+def is_producer(it):
+    return getattr(it, INJECT_RETURN, False)
+
+
 def sorted_producers(producers):
     none_priority = filter(lambda it: first(it) is None, producers)
     with_priority = filter(lambda it: first(it) is not None, producers)
@@ -102,6 +106,11 @@ class PyCDIContainer(CDIContainer):
         producer = (lambda *args, **kwargs: instance)
         produce_type = type(instance) if produce_type is None else produce_type
         self.register_producer(producer, produce_type, context, priority)
+        for key, value in instance.__class__.__dict__.items():
+            produce_type = is_producer(value)
+            if produce_type is False:
+                continue
+            self.register_producer(getattr(instance, key), produce_type)
         return instance
 
     def register_producer(self, producer, produce_type=object, context=DEFAULT_CONTEXT, priority=None):
@@ -295,7 +304,7 @@ class Component(Inject):
         )
 
         for name, value in component_class.__dict__.items():
-            produce_type = getattr(value, INJECT_RETURN, False)
+            produce_type = is_producer(value)
             if produce_type is False:
                 continue
             Inject(component_class, _container=self.container)(value)

@Producer and register_instance
register_instance should find producers at instance
diff --git a/tests/__init__.py b/tests/__init__.py
index 4f1ca3f..a29340a 100644
--- a/tests/__init__.py
+++ b/tests/__init__.py
@@ -1,5 +1,10 @@
 import unittest
 
+from pycdi.core import DEFAULT_CONTAINER
+
 
 class TestCase(unittest.TestCase):
-    pass
+    container = None
+
+    def setUp(self):
+        self.container = DEFAULT_CONTAINER.sub_container()
diff --git a/tests/common/test_producer.py b/tests/common/test_producer.py
index 78d66d3..3871bec 100644
--- a/tests/common/test_producer.py
+++ b/tests/common/test_producer.py
@@ -1,8 +1,7 @@
 # -*- encoding: utf-8 -*-
-from tests import TestCase
-
 from pycdi import Producer, Inject
 from pycdi.core import DEFAULT_CONTAINER
+from tests import TestCase
 
 SOME_STRING = 'some_string'
 
@@ -50,3 +49,23 @@ class TestMultipleProducer(TestCase):
 
         DEFAULT_CONTAINER.call(function_with_injection)
         self.assertTrue(self.called)
+
+
+class TestProducersInInstance(TestCase):
+
+    def test_simple(self):
+        class NewType:
+            pass
+
+        new_type = NewType()
+
+        class WithProducer:
+
+            @Producer(produce_type=NewType)
+            def make_int(self):
+                return new_type
+
+        instance = WithProducer()
+        self.container.register_instance(instance)
+        produced = self.container.produce(NewType)
+        self.assertIs(produced, new_type)

pip install -e .
parse_log_pytest
pytest
coverage codecov pytest
3.6
pytest --no-header -rA --tb=line --color=no -p no:cacheprovider -W ignore::DeprecationWarning
attrs @ file:///opt/conda/conda-bld/attrs_1642510447205/work
certifi==2021.5.30
charset-normalizer==2.0.12
codecov==2.1.13
coverage==6.2
idna==3.10
importlib-metadata @ file:///tmp/build/80754af9/importlib-metadata_1631916693255/work
iniconfig @ file:///home/linux1/recipes/ci/iniconfig_1610983019677/work
more-itertools @ file:///tmp/build/80754af9/more-itertools_1637733554872/work
packaging @ file:///tmp/build/80754af9/packaging_1637314298585/work
pluggy @ file:///tmp/build/80754af9/pluggy_1615976315926/work
py @ file:///opt/conda/conda-bld/py_1644396412707/work
-e git+https://github.com/ettoreleandrotognoli/python-cdi.git@fa769bb5b4100fb1090a57e6dd2e07230e086ec7#egg=pycdi
pyparsing @ file:///tmp/build/80754af9/pyparsing_1635766073266/work
pytest==6.2.4
requests==2.27.1
six==1.17.0
toml @ file:///tmp/build/80754af9/toml_1616166611790/work
typing_extensions @ file:///opt/conda/conda-bld/typing_extensions_1647553014482/work
urllib3==1.26.20
zipp @ file:///tmp/build/80754af9/zipp_1633618647012/work

name: python-cdi
channels:
  - defaults
  - https://repo.anaconda.com/pkgs/main
  - https://repo.anaconda.com/pkgs/r
  - conda-forge
dependencies:
  - _libgcc_mutex=0.1=main
  - _openmp_mutex=5.1=1_gnu
  - attrs=21.4.0=pyhd3eb1b0_0
  - ca-certificates=2025.2.25=h06a4308_0
  - certifi=2021.5.30=py36h06a4308_0
  - importlib-metadata=4.8.1=py36h06a4308_0
  - importlib_metadata=4.8.1=hd3eb1b0_0
  - iniconfig=1.1.1=pyhd3eb1b0_0
  - ld_impl_linux-64=2.40=h12ee557_0
  - libffi=3.3=he6710b0_2
  - libgcc-ng=11.2.0=h1234567_1
  - libgomp=11.2.0=h1234567_1
  - libstdcxx-ng=11.2.0=h1234567_1
  - more-itertools=8.12.0=pyhd3eb1b0_0
  - ncurses=6.4=h6a678d5_0
  - openssl=1.1.1w=h7f8727e_0
  - packaging=21.3=pyhd3eb1b0_0
  - pip=21.2.2=py36h06a4308_0
  - pluggy=0.13.1=py36h06a4308_0
  - py=1.11.0=pyhd3eb1b0_0
  - pyparsing=3.0.4=pyhd3eb1b0_0
  - pytest=6.2.4=py36h06a4308_2
  - python=3.6.13=h12debd9_1
  - readline=8.2=h5eee18b_0
  - setuptools=58.0.4=py36h06a4308_0
  - sqlite=3.45.3=h5eee18b_0
  - tk=8.6.14=h39e8969_0
  - toml=0.10.2=pyhd3eb1b0_0
  - typing_extensions=4.1.1=pyh06a4308_0
  - wheel=0.37.1=pyhd3eb1b0_0
  - xz=5.6.4=h5eee18b_1
  - zipp=3.6.0=pyhd3eb1b0_0
  - zlib=1.2.13=h5eee18b_1
  - pip:
      - charset-normalizer==2.0.12
      - codecov==2.1.13
      - coverage==6.2
      - idna==3.10
      - requests==2.27.1
      - six==1.17.0
      - urllib3==1.26.20
prefix: /opt/conda/envs/python-cdi

tests/common/test_producer.py::TestProducersInInstance::test_simple
tests/common/test_boot.py::BootTest::test_boot_with_root tests/common/test_boot.py::BootTest::test_boot_without_root
tests/common/test_call.py::CallTest::test_call_with_args tests/common/test_call.py::CallTest::test_call_with_args_and_kwargs tests/common/test_call.py::CallTest::test_call_with_kwargs tests/common/test_call.py::CallTest::test_override_cdi tests/common/test_cdi.py::NameAsContextTest::test_simple_func tests/common/test_cdi.py::ForwardReferenceTest::test_simple_class tests/common/test_component.py::ComponentTest::test_inject_component tests/common/test_component.py::ComponentTest::test_inject_from_component_method tests/common/test_container.py::ContainerTest::test_complex_sub_container tests/common/test_container.py::ContainerTest::test_simple_sub_container tests/common/test_inheritance.py::InheritanceTest::test_inheritance tests/common/test_inheritance.py::InheritanceTest::test_inheritance_with_override tests/common/test_injection_point.py::InjectionPointTest::test_injection_points tests/common/test_interface.py::InterfaceCDITest::test_decorator tests/common/test_interface.py::InterfaceCDITest::test_methods tests/common/test_interface.py::InjectInterfaceTest::test_error tests/common/test_interface.py::InjectInterfaceTest::test_with_str tests/common/test_interface.py::InjectInterfaceTest::test_with_tuple tests/common/test_interface.py::InjectInterfaceTest::test_with_type tests/common/test_producer.py::TestProducer::test_reference tests/common/test_producer.py::TestMultipleProducer::test_inject tests/common/test_producer.py::TestMultipleProducer::test_priority tests/common/test_producer.py::TestMultipleProducer::test_with_subcontainer
pycdi/__init__.py pycdi/core.py
pycdi/__init__.py pycdi/core.py