diff --git a/perception/multi_object_tracker/include/multi_object_tracker/debugger/debugger.hpp b/perception/multi_object_tracker/include/multi_object_tracker/debugger/debugger.hpp
index 8edfc102b56db..1c632f5bebba0 100644
--- a/perception/multi_object_tracker/include/multi_object_tracker/debugger/debugger.hpp
+++ b/perception/multi_object_tracker/include/multi_object_tracker/debugger/debugger.hpp
@@ -1,4 +1,4 @@
-// Copyright 2024 Tier IV, Inc.
+// Copyright 2024 TIER IV, Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/perception/multi_object_tracker/include/multi_object_tracker/processor/input_manager.hpp b/perception/multi_object_tracker/include/multi_object_tracker/processor/input_manager.hpp
index d550547ea4278..ad8c4ae6e5e24 100644
--- a/perception/multi_object_tracker/include/multi_object_tracker/processor/input_manager.hpp
+++ b/perception/multi_object_tracker/include/multi_object_tracker/processor/input_manager.hpp
@@ -1,4 +1,4 @@
-// Copyright 2024 Tier IV, Inc.
+// Copyright 2024 TIER IV, Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/perception/multi_object_tracker/include/multi_object_tracker/processor/processor.hpp b/perception/multi_object_tracker/include/multi_object_tracker/processor/processor.hpp
index de0fe0854254a..310871dfcb07a 100644
--- a/perception/multi_object_tracker/include/multi_object_tracker/processor/processor.hpp
+++ b/perception/multi_object_tracker/include/multi_object_tracker/processor/processor.hpp
@@ -1,4 +1,4 @@
-// Copyright 2024 Tier IV, Inc.
+// Copyright 2024 TIER IV, Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/perception/multi_object_tracker/src/debugger/debug_object.cpp b/perception/multi_object_tracker/src/debugger/debug_object.cpp
index 11ecafba19e53..65e2068ab04ac 100644
--- a/perception/multi_object_tracker/src/debugger/debug_object.cpp
+++ b/perception/multi_object_tracker/src/debugger/debug_object.cpp
@@ -1,4 +1,4 @@
-// Copyright 2024 Tier IV, Inc.
+// Copyright 2024 TIER IV, Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/perception/multi_object_tracker/src/debugger/debugger.cpp b/perception/multi_object_tracker/src/debugger/debugger.cpp
index ad4ce4afad498..2baa970850a18 100644
--- a/perception/multi_object_tracker/src/debugger/debugger.cpp
+++ b/perception/multi_object_tracker/src/debugger/debugger.cpp
@@ -1,4 +1,4 @@
-// Copyright 2024 Tier IV, Inc.
+// Copyright 2024 TIER IV, Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/perception/multi_object_tracker/src/processor/input_manager.cpp b/perception/multi_object_tracker/src/processor/input_manager.cpp
index dfaae6252745c..aada2c0403222 100644
--- a/perception/multi_object_tracker/src/processor/input_manager.cpp
+++ b/perception/multi_object_tracker/src/processor/input_manager.cpp
@@ -1,4 +1,4 @@
-// Copyright 2024 Tier IV, Inc.
+// Copyright 2024 TIER IV, Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/perception/multi_object_tracker/src/processor/processor.cpp b/perception/multi_object_tracker/src/processor/processor.cpp
index a5a1f18a64ca0..08df50fa66993 100644
--- a/perception/multi_object_tracker/src/processor/processor.cpp
+++ b/perception/multi_object_tracker/src/processor/processor.cpp
@@ -1,4 +1,4 @@
-// Copyright 2024 Tier IV, Inc.
+// Copyright 2024 TIER IV, Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.