Cisco
http://www.cisco.com
Enable Secure Business Processes - Tight integration of security and networking results in improved defense. Greater security visibility across your entire network results in easier operational management and greater policy control. The Self-Defending Network provides a logical platform to evolve to advanced security services, improving the value of your security investment over time.

F5
http://www.f5.com
Availability, security, storage and virtualization.

Hewlett Packard
http://www.hp.com/rnd/index.htm
ProCurve Networking by HP brings experienced innovation across wired and wireless LAN and WAN networking products, services and solutions.

Juniper
http://www.juniper.net/
Juniper Networks develops purpose-built, high performance IP platforms that enable customers to support a wide variety of services and applications at scale. Service providers, enterprises, governments and research and education institutions rely on Juniper to deliver a portfolio of proven networking, security and application acceleration solutions that solve highly complex, fast-changing problems in the world's most demanding networks