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Illumio

Breach containment through microsegmentation across data center, cloud, and endpoints

Products
0
Founded
2013
Employees
501-1,000
Headquarters
Sunnyvale, CA, United States

About Illumio

Illumio is a cybersecurity company founded in 2013 by Andrew Rubin and PJ Kirner to simplify microsegmentation. The company builds a breach containment platform that maps workload communications, enforces segmentation policy, and isolates compromised systems across hybrid, multi-cloud environments. Illumio sells to large enterprises and government agencies, with deployments protecting more than 15 of the Fortune 100 and 6 of the 10 largest global banks.

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Info last updated on June 30, 2026