McAfee Network Security Platform - McAfee Network Security Platform guards all your network-connected devices from zero-day and other attacks, with a cost-effective network intrusion prevention system.

Imperva Cloud Application Security - Deploy your applications and data where you want. When you want. Imperva keeps them secure in the cloud, on premises, and in hybrid clouds.

Suricata - Suricata is a high performance Network IDS, IPS and Network Security Monitoring engine.

Incapsula - Incapsula is a Security CDN that makes any website safer, faster and more reliable. 5 minute setup will make a world of difference.

snort - Snort is a free and open source network intrusion prevention system.

Sucuri - Website Protection, Malware Removal, and Blacklist Prevention