diff --git a/pytorch_lightning/accelerators/cpu.py b/pytorch_lightning/accelerators/cpu.py
index f428951b16..22ea8f1e1b 100644
--- a/pytorch_lightning/accelerators/cpu.py
+++ b/pytorch_lightning/accelerators/cpu.py
@@ -1,3 +1,16 @@
+# Copyright The PyTorch Lightning team.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 from typing import TYPE_CHECKING
 
 from pytorch_lightning.accelerators.accelerator import Accelerator
diff --git a/pytorch_lightning/accelerators/gpu.py b/pytorch_lightning/accelerators/gpu.py
index 5c5dc5cc6f..c23960e4fd 100644
--- a/pytorch_lightning/accelerators/gpu.py
+++ b/pytorch_lightning/accelerators/gpu.py
@@ -1,3 +1,16 @@
+# Copyright The PyTorch Lightning team.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 import logging
 import os
 from typing import Any, TYPE_CHECKING
diff --git a/pytorch_lightning/accelerators/tpu.py b/pytorch_lightning/accelerators/tpu.py
index fb4af24c93..35a475e3e7 100644
--- a/pytorch_lightning/accelerators/tpu.py
+++ b/pytorch_lightning/accelerators/tpu.py
@@ -1,3 +1,16 @@
+# Copyright The PyTorch Lightning team.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 from typing import Any, Callable, Optional, TYPE_CHECKING, Union
 
 import torch
diff --git a/pytorch_lightning/plugins/training_type/utils.py b/pytorch_lightning/plugins/training_type/utils.py
index 7380f871f5..eddb907711 100644
--- a/pytorch_lightning/plugins/training_type/utils.py
+++ b/pytorch_lightning/plugins/training_type/utils.py
@@ -1,3 +1,16 @@
+# Copyright The PyTorch Lightning team.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 import os