ExtraHop Networks has completed a $5.1 million Series A round of funding, led by the Madrona Venture Group, with participation from angel investors including Marc Andreessen and Ben Horowitz. ExtraHop’s delivery assurance system helps enterprises manage applications and provides visibility for applications.

Founded in 2007 by former engineers from F5 Networks, Extrahop uses fluctuations in switch and processing capacity to analyze all the traffic within in an application. The software also lets engineers monitor apps and manage issues with troubleshooting. Extrahop says that it will use the funding to fund investments in customer acquisition, product development, and go-to-market efforts. Competitors that manage apps for businesses include NetQOS and NetScout.