pfSense - pfSense is a free and open source firewall and router that also features unified threat management, load balancing, multi WAN, and more
Load Impact - How many users can my web site handle?
Cisco ASA - Cisco ASA Software delivers enterprise-class security capabilities for the ASA security family in a variety of form factors.
Check Point Quantum Security Gateway - Quantum is the next-generation VPN security gateway that delivers the core security benefits of a firewall, next-generation IPS, antivirus, and Web-filtering without sacrificing performance.
Qualys - Qualys helps your business automate the full spectrum of auditing, compliance and protection of your IT systems and web applications.
DataSunrise Database Security - DataSunrise Database Security Software secures the databases and data in real-time with high performance.