Exploit Pack - Exploit Pack is an open source project security that will help you adapt exploit codes on-the-fly.

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.

Cobalt Strike - Advanced threat tactics for penetration testers.

Nessus - Nessus Professional is a security platform designed for businesses who want to protect the security of themselves, their clients, and their customers.

Shodan - Shodan is the world's first search engine for Internet-connected devices.

Censys - Censys helps organizations, individuals, and researchers find and monitor every server on the Internet to reduce exposure and improve security.