HackerOne - HackerOne provides a platform designed to streamline vulnerability coordination and bug bounty program by enlisting hackers.
Cobalt Strike - Advanced threat tactics for penetration testers.
Intruder - Intruder is a security monitoring platform for internet-facing systems.
ZoomEye - Network mapping service
Nessus - Nessus Professional is a security platform designed for businesses who want to protect the security of themselves, their clients, and their customers.
Armitage - Armitage makes penetration testing easy by adding a GUI to the Metasploit framework