diff --git a/google/cloud/aiplatform/matching_engine/_protos/match_service.proto b/google/cloud/aiplatform/matching_engine/_protos/match_service.proto
index ad80af2f0d..eab9f3f4d9 100644
--- a/google/cloud/aiplatform/matching_engine/_protos/match_service.proto
+++ b/google/cloud/aiplatform/matching_engine/_protos/match_service.proto
@@ -1,3 +1,17 @@
+// Copyright 2026 Google LLC
+//
+// 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.
+
 syntax = "proto3";
 
 package google.cloud.aiplatform.container.v1;
diff --git a/google/cloud/aiplatform/tensorboard/uploader_constants.py b/google/cloud/aiplatform/tensorboard/uploader_constants.py
index 16e3c3672a..7cda22a7a1 100644
--- a/google/cloud/aiplatform/tensorboard/uploader_constants.py
+++ b/google/cloud/aiplatform/tensorboard/uploader_constants.py
@@ -1,3 +1,17 @@
+# Copyright 2026 Google LLC
+#
+# 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.
+
 """Constants shared between TensorBoard command line uploader and SDK uploader"""
 
 import dataclasses
diff --git a/google/cloud/aiplatform/vizier/pyvizier/__init__.py b/google/cloud/aiplatform/vizier/pyvizier/__init__.py
index 458da46301..04601b4006 100644
--- a/google/cloud/aiplatform/vizier/pyvizier/__init__.py
+++ b/google/cloud/aiplatform/vizier/pyvizier/__init__.py
@@ -1,3 +1,17 @@
+# Copyright 2026 Google LLC
+#
+# 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.
+
 """PyVizier classes for Pythia policies."""
 
 try:
diff --git a/google/cloud/aiplatform/vizier/pyvizier/automated_stopping.py b/google/cloud/aiplatform/vizier/pyvizier/automated_stopping.py
index 25a8302e93..e064d4ca5d 100644
--- a/google/cloud/aiplatform/vizier/pyvizier/automated_stopping.py
+++ b/google/cloud/aiplatform/vizier/pyvizier/automated_stopping.py
@@ -1,3 +1,17 @@
+# Copyright 2026 Google LLC
+#
+# 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.
+
 """Convenience classes for configuring Vizier Early-Stopping Configs."""
 
 import copy
diff --git a/google/cloud/aiplatform/vizier/pyvizier/proto_converters.py b/google/cloud/aiplatform/vizier/pyvizier/proto_converters.py
index 688c007247..47fa434b52 100644
--- a/google/cloud/aiplatform/vizier/pyvizier/proto_converters.py
+++ b/google/cloud/aiplatform/vizier/pyvizier/proto_converters.py
@@ -1,3 +1,17 @@
+# Copyright 2026 Google LLC
+#
+# 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.
+
 """Converters for OSS Vizier's protos from/to PyVizier's classes."""
 
 import logging
diff --git a/google/cloud/aiplatform/vizier/pyvizier/study_config.py b/google/cloud/aiplatform/vizier/pyvizier/study_config.py
index f65b6ba995..4c7e448501 100644
--- a/google/cloud/aiplatform/vizier/pyvizier/study_config.py
+++ b/google/cloud/aiplatform/vizier/pyvizier/study_config.py
@@ -1,3 +1,17 @@
+# Copyright 2026 Google LLC
+#
+# 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.
+
 """Convenience classes for configuring Vizier Study Configs and Search Spaces.
 
 This module contains several classes, used to access/build Vizier StudyConfig