U of M spinoff Censys Raises $70 Million to Expand Internet Intelligence Platform

Censys, a Michigan-based startup mapping and analyzing global Internet infrastructure, has announced it had closed a $70 million financing round to expand its Internet intelligence platform and accelerate development of AI-driven security products. 

The package includes a $40 million Series D equity round led by Morgan Stanley Expansion Capital, alongside $30 million in debt financing. Other investors include Decibel Partners, Greylock Partners, GV and Intel Capital. 

Censys, founded in 2018 by security researcher and University of Michigan PhD Zakir Durumeric, operates a platform to discover and monitor public-facing systems and services across the Internet. Customers use the company’s data to manage attack surface exposure, hunt for threats and inform incident response. In announcing the financing, Censys said more than 300,000 security practitioners rely on its services and that organizations representing over half of the Fortune 500 use its data. 

Durumeric framed the new funding around AI transforming multiple aspects of modern life, but added that "its ultimate success will be fundamentally shaped by the quality and timeliness of the data available to it." Morgan Stanley Expansion Capital’s Pete Chung said that Censys was “THE authoritative source for Internet intelligence,"

The investment comes amid growing attention to risks tied to exposed Internet services, supply-chain weaknesses and threats to critical infrastructure. Security firms and researchers have increasingly emphasized the importance of external‑facing scanning and telemetry, like that provided by Censys and its competitors, to identify misconfigurations, unpatched software and other externally visible vulnerabilities. Analysts say the market for attack-surface and exposure-management tools has been heating up as enterprises look to combine such external intelligence with internal telemetry and automate response using machine learning. That trend has prompted established security vendors and cloud providers to add similar features, raising questions about how specialist data providers will differentiate themselves. 

The company said proceeds will be used to accelerate product innovation and global expansion of its platform. As demand grows for timely external visibility, companies that pair broad, accurate scanning with robust privacy and legal practices may have a competitive edge.