diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -135,3 +135,13 @@ See `test_files/components/[language]_decoder/README.md`
 ### Test files
 
 See the folder `test_files`.
+
+---
+
+# Sponsors
+
+<p align="center">
+    <a href="https://NLnet.nl">
+        <img src="docs/nlnet_logo.png" width="269" alt="Logo NLnet">
+    </a>
+</p>
diff --git a/docs/nlnet_logo.png b/docs/nlnet_logo.png
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