G2 Track - Manage your entire technology stack in one dashboard
GOG.com - DRM-free game store, selling both new and old titles. No clients required.
Blissfully - Blissfully offers solutions to track, manage, and optimize SaaS spendings.
itch.io - An online game marketplace and community.
SnowSoftware - Snow Software are suppliers of Software Asset Management products and help optimizing licensing & minimizing compliance risk.
GnuPlot - Gnuplot is a portable command-line driven interactive data and function plotting utility.