Symantec Email Security.cloud - Symantec Email Security.cloud provides always-on, inbound and outbound email security against malware, targeted attacks, and advanced threats
E2Guardian - Web filtering solution
pfSense - pfSense is a free and open source firewall and router that also features unified threat management, load balancing, multi WAN, and more
NxFilter - Best performance. You don't want to slow down your network by installing a network security software. NxFilter is a light-weight DNS filter. It doesn't cause any latency issue in your network.
SonicWall - SonicWall security solutions protects your network, systems, users and data from cyber threats.
FamilyShield - OpenDNS is the easiest way to make your Internet safer, faster and more reliable. Protect your family across all devices on your home network.