Cisco IronPort Web Security Appliance - Cisco IronPort Web Security Appliance
WatchGuard XTM - Discontinued Product - WatchGuard Technologies is strongly committed to providing industry-leading products and services.
Palo Alto Networks WildFire - Firewall and Threat Intelligence
pfSense - pfSense is a free and open source firewall and router that also features unified threat management, load balancing, multi WAN, and more
Falcon Sandbox - Submit malware for analysis with Falcon Sandbox and Hybrid Analysis technology. CrowdStrike develops and licenses analysis tools to fight malware.
ClearOS - A very good alternative for Windows Server, for free