diff --git a/CODEOWNERS b/CODEOWNERS
new file mode 100644
index 00000000000..a6f7f2912c0
--- /dev/null
+++ b/CODEOWNERS
@@ -0,0 +1,3 @@
+/cpp/ @Semmle/cpp
+/csharp/ @Semmle/cs
+/javascript/ @Semmle/js