diff --git a/readme.md b/readme.md
index 70d07e6a..98a3e643 100644
--- a/readme.md
+++ b/readme.md
@@ -53,6 +53,7 @@ We would like to extend our thanks to the following sponsors for helping fund on
 - [Earthlink](https://www.earthlink.ro/)
 - [Steadfast Collective](https://steadfastcollective.com/)
 - [We Are The Robots Inc.](https://watr.mx/)
+- [Understand.io](https://www.understand.io/)
 
 ## Contributing