diff --git a/synapse/_scripts/export_signing_key.py b/synapse/_scripts/export_signing_key.py
index 673a2d1045..690115aabe 100755
--- a/synapse/_scripts/export_signing_key.py
+++ b/synapse/_scripts/export_signing_key.py
@@ -2,6 +2,7 @@
#
# This file is licensed under the Affero General Public License (AGPL) version 3.
#
+# Copyright 2019 The Matrix.org Foundation C.I.C.
# Copyright (C) 2023 New Vector, Ltd
#
# This program is free software: you can redistribute it and/or modify
diff --git a/synapse/_scripts/generate_log_config.py b/synapse/_scripts/generate_log_config.py
index df77444162..6b2d92dbb5 100755
--- a/synapse/_scripts/generate_log_config.py
+++ b/synapse/_scripts/generate_log_config.py
@@ -3,6 +3,7 @@
#
# This file is licensed under the Affero General Public License (AGPL) version 3.
#
+# Copyright 2020 The Matrix.org Foundation C.I.C.
# Copyright (C) 2023 New Vector, Ltd
#
# This program is free software: you can redistribute it and/or modify
diff --git a/synapse/_scripts/generate_signing_key.py b/synapse/_scripts/generate_signing_key.py
index a329416495..ba8aba6ee4 100755
--- a/synapse/_scripts/generate_signing_key.py
+++ b/synapse/_scripts/generate_signing_key.py
@@ -2,6 +2,7 @@
#
# This file is licensed under the Affero General Public License (AGPL) version 3.
#
+# Copyright 2019 The Matrix.org Foundation C.I.C.
# Copyright (C) 2023 New Vector, Ltd
#
# This program is free software: you can redistribute it and/or modify
diff --git a/synapse/_scripts/generate_workers_map.py b/synapse/_scripts/generate_workers_map.py
index cf060d73d9..5b6c8f6837 100755
--- a/synapse/_scripts/generate_workers_map.py
+++ b/synapse/_scripts/generate_workers_map.py
@@ -2,6 +2,7 @@
#
# This file is licensed under the Affero General Public License (AGPL) version 3.
#
+# Copyright 2022-2023 The Matrix.org Foundation C.I.C.
# Copyright (C) 2023 New Vector, Ltd
#
# This program is free software: you can redistribute it and/or modify
diff --git a/synapse/_scripts/register_new_matrix_user.py b/synapse/_scripts/register_new_matrix_user.py
index d307bd5a22..77a7129ee2 100644
--- a/synapse/_scripts/register_new_matrix_user.py
+++ b/synapse/_scripts/register_new_matrix_user.py
@@ -1,6 +1,8 @@
#
# This file is licensed under the Affero General Public License (AGPL) version 3.
#
+# Copyright 2021-22 The Matrix.org Foundation C.I.C.
+# Copyright 2015, 2016 OpenMarket Ltd
# Copyright (C) 2023 New Vector, Ltd
#
# This program is free software: you can redistribute it and/or modify
diff --git a/synapse/_scripts/review_recent_signups.py b/synapse/_scripts/review_recent_signups.py
index aa24698ee7..ad88df477a 100644
--- a/synapse/_scripts/review_recent_signups.py
+++ b/synapse/_scripts/review_recent_signups.py
@@ -1,6 +1,7 @@
#
# This file is licensed under the Affero General Public License (AGPL) version 3.
#
+# Copyright 2021 The Matrix.org Foundation C.I.C.
# Copyright (C) 2023 New Vector, Ltd
#
# This program is free software: you can redistribute it and/or modify
diff --git a/synapse/_scripts/synapse_port_db.py b/synapse/_scripts/synapse_port_db.py
index 6bfec35a49..1dcc289df3 100755
--- a/synapse/_scripts/synapse_port_db.py
+++ b/synapse/_scripts/synapse_port_db.py
@@ -2,6 +2,8 @@
#
# This file is licensed under the Affero General Public License (AGPL) version 3.
#
+# Copyright 2019 The Matrix.org Foundation C.I.C.
+# Copyright 2015, 2016 OpenMarket Ltd
# Copyright (C) 2023 New Vector, Ltd
#
# This program is free software: you can redistribute it and/or modify
diff --git a/synapse/_scripts/synctl.py b/synapse/_scripts/synctl.py
index 85cad98af6..688df9485c 100755
--- a/synapse/_scripts/synctl.py
+++ b/synapse/_scripts/synctl.py
@@ -2,6 +2,7 @@
#
# This file is licensed under the Affero General Public License (AGPL) version 3.
#
+# Copyright 2014-2016 OpenMarket Ltd
# Copyright (C) 2023 New Vector, Ltd
#
# This program is free software: you can redistribute it and/or modify
diff --git a/synapse/_scripts/update_synapse_database.py b/synapse/_scripts/update_synapse_database.py
index f27bde5f2e..8d22bf53d4 100644
--- a/synapse/_scripts/update_synapse_database.py
+++ b/synapse/_scripts/update_synapse_database.py
@@ -1,6 +1,7 @@
#
# This file is licensed under the Affero General Public License (AGPL) version 3.
#
+# Copyright 2019 The Matrix.org Foundation C.I.C.
# Copyright (C) 2023 New Vector, Ltd
#
# This program is free software: you can redistribute it and/or modify
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