pfSense - pfSense is a free and open source firewall and router that also features unified threat management, load balancing, multi WAN, and more
Palo Alto Networks WildFire - Firewall and Threat Intelligence
Webroot SecureAnywhere - Antivirus
Zscaler Web Security - Zscaler offers cloud-based web security solutions.
MikroTik RouterOS - The main product of MikroTik is a Linux-based operating system known as MikroTik RouterOS.
Meraki MX Firewalls - Cloud managed networking from Cisco Meraki. The easiest and most IT-friendly solution for enterprise networking needs.