Barracuda Networks Based in Campbell, California, Barracuda provides a broad array of cost-effective network and application security products, as well as storage and productivity solutions. Barracuda's Web Filter appliances are complemented by its cloud-based proxy service (Web Security Service). Barracuda customers typically implement its appliances in transparent bridge mode to view all network traffic, but the appliances can also be implemented in proxy mode. Barracuda is transitioning the policy enforcement model of its cloud service from cloud-based enforcement to agent-based enforcement (based on a cloud lookup mechanism). Barracuda licenses Lastline's cloud-based sandbox technology and has integrated the solution with its firewall products. Integration with Barracuda's SWG products will be delivered later in 2015. This year, Barracuda moves from the Challengers quadrant to the Niche Players quadrant, due in part to its stagnant market share. Its 2009 acquisition of cloud-based SWG services vendor Purewire has added only marginal revenue growth. Barracuda's Web Filter appliances are good candidates for SMBs and cost-conscious enterprises.