Censys, Inc., an Ann Arbor, Mich.-based provider of Internet security data, raised $2.6M in seed funding.
The round was led by GV and Greylock Partners, with participation from a number of angel investors.
The company intends to use the funds to collect more data and provide more actionable insights for customers, with key hires planned for engineering and product teams.
Founded by the security researchers and creators of ZMap, Censys provides businesses with a global perspective of their servers so that they can understand their exposure and assess security risk.
More than 60 customers, including the U.S. Department of Homeland Security, FireEye, Google, the North Atlantic Treaty Organisation (NATO), and Swiss Armed Forces have been using Censys data since 2015 to monitor and find corporate infrastructure, and also to track adversaries and prevent phishing attacks and brand impersonation.