diff --git a/README.md b/README.md
index 7a7bc9e..10ac79c 100644
--- a/README.md
+++ b/README.md
@@ -540,6 +540,7 @@ Please read [CONTRIBUTING](./CONTRIBUTING.md) if you wish to add software.
 * [LXC](https://linuxcontainers.org/lxc/) -  Userspace interface for the Linux kernel containment features.
 * [OpenVZ](http://openvz.org) - Container-based virtualization for Linux.
 * [Fig](http://orchardup.github.io/fig/) - Fast, isolated development environments using Docker.
+* [Singularity](http://singularity.lbl.gov/) - Flexible containers without root.
 
 ## SSH