10. Barracuda Networks

Barracuda Networks landed in the No. 10 spot for network security brands in Q1, selling 713 units in the quarter. But that represents a significant, 50 percent year-over-year drop for the company. The company accounted for 1 percent of network security market share in the quarter. Barracuda has been expanding its network security portfolio with investments around data security and cloud security, as well as backup and disaster recovery.