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.
Amazon GuardDuty - Amazon GuardDuty offers continuous monitoring of your AWS accounts and workloads to protect against malicious or unauthorized activities.
NetWrix Auditor - Configuration Auditing of IT Infrastructure
Acunetix - Audit your website security and web applications for SQL injection, Cross site scripting and other...