diff --git a/README.md b/README.md
index 6529ce1..b42c272 100644
--- a/README.md
+++ b/README.md
@@ -93,3 +93,6 @@ SP2XR_code/
 
 See [LICENSE.md](LICENSE.md) for license information.
 
+## Funding
+
+Initial development of this software package was done within a project funded by the Swiss National Science Foundation (grant no 200021_204823).