diff --git a/pySim/card_handler.py b/pySim/card_handler.py
index e7884ad0..f081b903 100644
--- a/pySim/card_handler.py
+++ b/pySim/card_handler.py
@@ -7,7 +7,7 @@ there are also automatic card feeders.
 """
 
 #
-# (C) 2019 by Sysmocom s.f.m.c. GmbH
+# (C) 2019 by sysmocom - s.f.m.c. GmbH
 # All Rights Reserved
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/pySim/card_key_provider.py b/pySim/card_key_provider.py
index f614edcd..227046c4 100644
--- a/pySim/card_key_provider.py
+++ b/pySim/card_key_provider.py
@@ -10,7 +10,7 @@ the need of manually entering the related card-individual data on every
 operation with pySim-shell.
 """
 
-# (C) 2021-2025 by Sysmocom s.f.m.c. GmbH
+# (C) 2021-2025 by sysmocom - s.f.m.c. GmbH
 # All Rights Reserved
 #
 # Author: Philipp Maier, Harald Welte
diff --git a/pySim/global_platform/install_param.py b/pySim/global_platform/install_param.py
index ec0ef666..89e6c7f0 100644
--- a/pySim/global_platform/install_param.py
+++ b/pySim/global_platform/install_param.py
@@ -1,6 +1,6 @@
 # GlobalPlatform install parameter generator
 #
-# (C) 2024 by Sysmocom s.f.m.c. GmbH
+# (C) 2024 by sysmocom - s.f.m.c. GmbH
 # All Rights Reserved
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/pySim/javacard.py b/pySim/javacard.py
index 2d4fd341..2c97fac4 100644
--- a/pySim/javacard.py
+++ b/pySim/javacard.py
@@ -1,6 +1,6 @@
 # JavaCard related utilities
 #
-# (C) 2024 by Sysmocom s.f.m.c. GmbH
+# (C) 2024 by sysmocom - s.f.m.c. GmbH
 # All Rights Reserved
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/pySim/log.py b/pySim/log.py
index a2325a60..c7e52395 100644
--- a/pySim/log.py
+++ b/pySim/log.py
@@ -4,7 +4,7 @@
 """
 
 #
-# (C) 2025 by Sysmocom s.f.m.c. GmbH
+# (C) 2025 by sysmocom - s.f.m.c. GmbH
 # All Rights Reserved
 #
 # Author: Philipp Maier <pmaier@sysmocom.de>
diff --git a/pySim/profile.py b/pySim/profile.py
index 360aa46f..22db21c8 100644
--- a/pySim/profile.py
+++ b/pySim/profile.py
@@ -4,7 +4,7 @@
 """
 
 #
-# (C) 2021 by Sysmocom s.f.m.c. GmbH
+# (C) 2021 by sysmocom - s.f.m.c. GmbH
 # All Rights Reserved
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/tests/pySim-prog_test/pySim-prog_test.sh b/tests/pySim-prog_test/pySim-prog_test.sh
index 9279c6c8..6541acb3 100755
--- a/tests/pySim-prog_test/pySim-prog_test.sh
+++ b/tests/pySim-prog_test/pySim-prog_test.sh
@@ -2,7 +2,7 @@
 
 # Utility to verify the functionality of pySim-prog.py
 #
-# (C) 2018 by Sysmocom s.f.m.c. GmbH
+# (C) 2018 by sysmocom - s.f.m.c. GmbH
 # All Rights Reserved
 #
 # Author: Philipp Maier
diff --git a/tests/pySim-trace_test/pySim-trace_test.sh b/tests/pySim-trace_test/pySim-trace_test.sh
index ec23ad34..0a9fb477 100755
--- a/tests/pySim-trace_test/pySim-trace_test.sh
+++ b/tests/pySim-trace_test/pySim-trace_test.sh
@@ -2,7 +2,7 @@
 
 # Utility to verify the functionality of pySim-trace.py
 #
-# (C) 2023 by Sysmocom s.f.m.c. GmbH
+# (C) 2023 by sysmocom - s.f.m.c. GmbH
 # All Rights Reserved
 #
 # Author: Philipp Maier
diff --git a/tests/unittests/test_log.py b/tests/unittests/test_log.py
index cc67b78f..6a0f7ffe 100755
--- a/tests/unittests/test_log.py
+++ b/tests/unittests/test_log.py
@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 
-# (C) 2025 by Sysmocom s.f.m.c. GmbH
+# (C) 2025 by sysmocom - s.f.m.c. GmbH
 # All Rights Reserved
 #
 # Author: Philipp Maier <pmaier@sysmocom.de>