Index: head/share/xml/commercial.isp.xml
===================================================================
--- head/share/xml/commercial.isp.xml
+++ head/share/xml/commercial.isp.xml
@@ -693,4 +693,13 @@
       open source. We provide &os; based firewalls and storage
       solutions.</description>
   </entry>
+
+  <entry id="vstack">
+    <name>vStack</name>
+    <url>https://vstack.com</url>
+    <description>vStack builds hyper-converged infrastructure
+      providing unified cluster space, software defined computing,
+      storage and networking capabilities, redundancy and failover
+      features.</description>
+  </entry>
 </entries>