diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS
new file mode 100644
index 000000000..11be4497a
--- /dev/null
+++ b/.github/CODEOWNERS
@@ -0,0 +1,6 @@
+/*/groupware/                                               @ChristophWurst
+/*/groupware/calendar.rst                                   @miaulalala
+/*/groupware/contacts.rst                                   @hamza221
+/*/groupware/mail.rst                                       @GretaD
+/developer_manual/digging_deeper/groupware/                 @ChristophWurst
+/developer_manual/digging_deeper/groupware/calendar.rst     @miaulalala