diff --git a/Companies-and-Individuals-Using-Beast.md b/Companies-and-Individuals-Using-Beast.md
index 10a1dbb..762eb34 100644
--- a/Companies-and-Individuals-Using-Beast.md
+++ b/Companies-and-Individuals-Using-Beast.md
@@ -51,4 +51,9 @@ https://github.com/openbmc/bmcweb
 
 ----------
 
-[Jackarain](https://github.com/Jackarain) uses Beast.WebSocket for a RPC communication [tinyrpc](https://github.com/Jackarain/tinyrpc).
\ No newline at end of file
+[Jackarain](https://github.com/Jackarain) uses Beast.WebSocket for a RPC communication [tinyrpc](https://github.com/Jackarain/tinyrpc).
+
+----------
+
+[Icinga](https://icinga.com) is an open source monitoring stack. [Icinga 2 Core](https://github.com/icinga/icinga2) uses Beast, ASIO and Coroutines for the [new network stack](https://github.com/Icinga/icinga2/issues/7041) since 2.11. Beast.HTTP is used for the [REST API](https://icinga.com/docs/icinga2/latest/doc/12-icinga2-api/) while ASIO/Coroutine/Context help with TLS connections and JSON-RPC cluster messages for [distributed monitoring](https://icinga.com/docs/icinga2/latest/doc/06-distributed-monitoring/) environments. The core developers introducing Beast are [Alexander Klimov](https://github.com/al2klimov) and [Michael Friedrich](https://github.com/dnsmichi).
+