Illumio's main headquarters in Sunnyvale, CA, serve as their global hub for their cybersecurity breach containment solutions, with additional offices in major cities like Sydney, Tokyo, and Reading. Key Address: Headquarters: 920 De Guigne Drive, Sunnyvale, California 94085, United States. Other Locations: Sydney, Australia: Level 5/20 Bond St. Tokyo, Japan: Otemachi Financial City Grand Cube 3F, 1-9-2 Otemachi. Reading, UK: Landmark Space 450 Brook Drive, Green Park.
