AttackTree VS Tenable.io

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

Qualys - Qualys helps your business automate the full spectrum of auditing, compliance and protection of your IT systems and web applications.

AlienVault USM (from AT&T Cybersecurity) - AlienVault USM Anywhere delivers powerful threat detection, incident response, and compliance management for cloud, on-premises, and hybrid environments.

BreachLock - BreachLock is a versatile platform that provides scalable and smooth penetration testing services for vulnerabilities.

Symantec Risk Insight - Symantec Risk Insight is a strategic tool that allows you to easily communicate your organization’s security risk exposure to relevant stakeholders.

SecurityScorecard - Security solution to predict and remediate potential security risks across organizations and their partners.