ExtraHop Networks

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ExtraHop Networks, Inc.
Industry Technology
Founded 2007
Founders Jesse Rothstein
Raja Mukerji
Headquarters Seattle, WA
Website www.extrahop.com

ExtraHop Networks, Inc. is an enterprise technology company headquartered in Seattle, Washington. ExtraHop sells network appliances that perform real-time analysis of wire data for performance troubleshooting, security detection, optimization and tuning, and business analytics.


Jesse Rothstein and Raja Mukerji founded ExtraHop in 2007. The co-founders were formerly senior engineers at F5 Networks and architects of the BIG-IP v9 product.

ExtraHop Networks has raised $6.6 million in funding from the Madrona Venture Group and other private investors including Marc Andreessen, co-founder of Netscape, and Ben Horowitz, former CEO of Opsware.[1] In May 2014, the company closed a $41 million Series C round led by Technology Crossover Ventures (TCV). Other participants in this round included existing investors Meritech Capital Partners and Madrona Venture Group, as well as private investors including Sujal Patel, former CEO and founder of Isilon Systems. This round brought ExtraHop’s total venture funding to $61.6 million.[2]

In December 2014, the company appointed John Matthews as Chief Information Officer.[3] In July 2016, ExtraHop brought on Arif Kareem, former president of the Fluke Networks division of Fluke Corporation, as CEO with co-founder Jesse Rothstein moving into the CTO role.[4]


ExtraHop is headquartered on the 17th floor of 520 Pike Tower in downtown Seattle

The ExtraHop platform is a passive network appliance that uses a network tap or port mirroring to receive network traffic, and then performs real-time full-stream reassembly to extract application-level protocol metrics and other custom-specified information contained in the transaction payload.[5] IT operations teams use this data to monitor the performance of the applications running on the network and detect anomalous behavior that could indicate a data breach, for example.[6] The ExtraHop appliance can be deployed on-premises or in public cloud services such as Amazon Web Services (AWS) and Microsoft Azure.


  1. ^ "Marc Andreessen, Madrona back ExtraHop Networks with $5 mil.". 
  2. ^ http://techcrunch.com/2014/05/29/extrahop-raises-41m-series-c-round-for-its-real-time-it-analytics-service/
  3. ^ Frank, Blair. "Tech Moves: ExtraHop recruits F5 exec as CIO, Move gets new CEO, and more". GeekWire. Retrieved 19 December 2014. 
  4. ^ "ExtraHop hires former Fluke Networks president as CEO". Seattle Times. July 26, 2016. 
  5. ^ "How the ExtraHop Appliance Works". 
  6. ^ "ExtraHop mines the network to glean operations intelligence". NetworkWorld.com. 2013-10-04. Retrieved 2015-03-05.