diff --git a/NOTICE.txt b/NOTICE.txt
new file mode 100644
index 00000000..586e4ca5
--- /dev/null
+++ b/NOTICE.txt
@@ -0,0 +1,5 @@
+Harness Feature Management JavaScript SDK Copyright 2024-2026 Harness Inc.
+
+This product includes software developed at Harness Inc. (https://harness.io/).
+
+This product includes software originally developed by Split Software, Inc. (https://www.split.io/). Copyright 2016-2024 Split Software, Inc.