Cobalt Strike - Advanced threat tactics for penetration testers.

SonicWall - SonicWall security solutions protects your network, systems, users and data from cyber threats.

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

Rapid7 MetaSploit - Penetration testing solution for risk validation.

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

Nmap - Nmap Free Security Scanner, Port Scanner, & Network Exploration Tool. Download open source software for Linux, Windows, UNIX, FreeBSD, etc.