Thoma Bravo
Proofpoint, Inc.
Kohlberg Kravis Roberts
McAfee
Juniper Networks
NetApp
Sophos
Blue Coat Systems
BMC Software
Riverbed Technology
ForgeRock
Imperva
OpenDNS
Gen Digital
Box, Inc.
Company which delivers network solutions
barracuda.com
Barracuda Networks, Inc. is a company providing security, networking and storage products based on network appliances and cloud services. Wikipedia