PuTTY - Popular free terminal application. Mostly used as an SSH client.
SnowSoftware - Snow Software are suppliers of Software Asset Management products and help optimizing licensing & minimizing compliance risk.
MobaXterm - Enhanced terminal for Windows with X11 server, tabbed SSH client, network tools and much more
Torii - SaaS Management Software.
iTerm2 - A terminal emulator for macOS that does amazing things.
SoftwareKey Licensing System - SoftwareKey System is a set of software development tools that help programmers implement copy protection, license activation and management, metering, eCommerce, and business automation.