diff --git a/src/index.html b/src/index.html
index 1279698b..b48891f8 100644
--- a/src/index.html
+++ b/src/index.html
@@ -449,6 +449,7 @@ <h3>Signed by:</h3>
     <li>Birkir Gunnarsson, CPWA, digital accessibility lead</li>
     <li>Kerstin Probiesch, Accessibility Consultant</li>
     <li>Radek Pavlíček, CPWA, Accessibility Specialist, Teiresias Centre Masaryk University & Poslepu.cz</li>
+    <li>Billy Gregory, TPGi</li>
 </ol>
 <p><a href="https://github.com/karlgroves/overlayfactsheet/">Add your name to this list on GitHub</a></p>