diff --git a/README.md b/README.md
index fec32ca..5ab06c0 100644
--- a/README.md
+++ b/README.md
@@ -508,6 +508,8 @@ A curated list of awesome Java frameworks, libraries and software.
 * [Prometheus](https://prometheus.io/) - Provides a multi-dimensional data model, DSL, autonomous server nodes and much more.
 * [SPM](https://sematext.com/spm/) - Commercial performance monitor with distributing transaction tracing for JVM apps.
 * [Takipi](https://www.takipi.com/) - Commercial in-production error monitoring and debugging.
+* [Stagemonitor](https://github.com/stagemonitor/stagemonitor) - Open source performance monitoring and transaction tracing for JVM apps.
+* [Glowroot](https://glowroot.org/) - Open source Java APM.
 
 ## Native
 *For working with platform-specific native libraries.*