Rapid7 - Find security issues, verify vulnerability mitigations & manage security assessments with Metasploit. Get the world's best penetration testing software now. DownloadPen testing software to act like an attacker.
Exploit Pack - Exploit Pack is an open source project security that will help you adapt exploit codes on-the-fly.
Nessus - Nessus Professional is a security platform designed for businesses who want to protect the security of themselves, their clients, and their customers.
ZoomEye - Network mapping service
Cobalt Strike - Advanced threat tactics for penetration testers.
Armitage - Armitage makes penetration testing easy by adding a GUI to the Metasploit framework