PuTTY - Popular free terminal application. Mostly used as an SSH client.
Deep Instinct - Deep Instinct is revolutionizing cyber security, offering advanced cyber security solutions that harness the power of deep learning analytics with unprecedented deep machine learning and AI prediction models.
MobaXterm - Enhanced terminal for Windows with X11 server, tabbed SSH client, network tools and much more
Quarkslab - Quarkslab is a security platform that makes applications and data safe with its skilled vulnerability search tools and design of security solutions.
iTerm2 - A terminal emulator for macOS that does amazing things.
Shape Security - Shape Security is a cyber security solution to defend websites against attacks from malware, botnets, and scripts.