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§ Private Profile · Sunnyvale, CA, USA
Cybersecurity company providing Zero Trust Segmentation technology to prevent cyberattacks and ransomware spread for enterprise customers.
Illumio is a cybersecurity company based in Sunnyvale, California, that provides Zero Trust Segmentation technology to prevent cyberattacks and ransomware from spreading across enterprise networks. The company's platform automates policy enforcement for rapid security across applications, containers, clouds, data centers, and endpoints. To date, Illumio has raised $582.5 million in funding and was valued at $2.75 billion as of June 2021, with its employee count exceeding 550 as of September 2023. Its client base includes over 20 percent of the Fortune 100, with notable customers such as Citi, HSBC, Salesforce, and Microsoft. Major investors contributing to its growth include Thoma Bravo, Andreessen Horowitz, Accel, General Catalyst, and Franklin Templeton. Illumio was founded in 2013 by Andrew Rubin and PJ Kirner.
Illumio has raised $568.0M across 6 funding rounds.
Illumio has raised $568.0M in total across 6 funding rounds.
Illumio is a cybersecurity company specializing in Zero Trust Segmentation (ZTS) and microsegmentation to contain breaches and prevent ransomware spread across hybrid cloud and on-premise environments.[1][2][3] Its core platform assumes breaches are inevitable, providing visibility into workload communications, granular policy enforcement, and automated isolation to minimize impact, serving enterprises in sectors like finance, healthcare, aviation, and tech—including ~20% of Fortune 100 companies such as Microsoft, Morgan Stanley, and Salesforce.[2][3][5][8] Illumio solves the problem of lateral movement in attacks by mapping risks, detecting threats via an AI security graph, and enabling one-click containment, positioning it as a foundational Zero Trust tool amid rising ransomware threats.[1][2][6]
The SaaS-delivered platform drives growth through secular demand for breach containment, capitalizing on expanding attack surfaces from cloud, GenAI, and hybrid IT; it has been named a 2024 Forrester Wave Leader in microsegmentation, reflecting strong enterprise adoption and ROI from risk reduction.[2][5][6]
Illumio was founded in 2013 in Sunnyvale, California, by co-founders Andrew Rubin and PJ Kirner, who aimed to simplify microsegmentation in response to evolving cyber threats.[2][3] Rubin and Kirner recognized that traditional prevention tools were failing against inevitable breaches, shifting focus from detection to containment—building on historical tools into a ZTS platform for the 2020s' expanding hybrid attack surfaces.[1][2] Early traction came from addressing ransomware's need for lateral movement prevention, with the company evolving to support cloud-scale deployment and AI-driven insights, securing clients like Microsoft for its scalability.[1][5]
Pivotal moments include pioneering breach containment as the "first and only platform" powered by an AI security graph, gaining validation through enterprise wins and industry recognition.[2][5]
Illumio rides the Zero Trust megatrend, fueled by inevitable breaches in hybrid/multi-cloud eras expanded by GenAI and IT complexity, where ransomware remains elevated post-2021 peaks (average $2M recovery cost).[1][2] Timing is critical as attack surfaces grow, making microsegmentation a strategic pillar for containing lateral movement—global Zero Trust market poised for decade-long expansion.[1] Market forces like regulatory compliance and cyber resilience favor Illumio's approach, influencing ecosystems by enabling unified security across clouds, reducing vulnerabilities, and partnering with giants like IBM QRadar and Microsoft.[3][4][5]
It shapes broader adoption of "assume breach" architectures, bridging traditional detection with proactive containment for enterprises.
Illumio is primed to dominate breach containment as AI-enhanced threats accelerate, expanding its AI security graph for deeper observability, container security, and GenAI environments.[2][5][6] Trends like ransomware persistence and hybrid cloud proliferation will boost demand, potentially driving SaaS subscriptions via Insights Agent automation and one-click responses. Its influence may evolve toward full Zero Trust orchestration, cementing leadership if it sustains Forrester-caliber innovation amid ~$2M breach economics—reinforcing its foundational role in assuming breaches but averting disasters.[1][6]
Illumio has raised $568.0M across 6 funding rounds. Most recently, it raised $230.0M Series F in June 2021.
Illumio has raised $568.0M in total across 6 funding rounds.
Illumio's investors include Robert Sayle, Asymmetric Capital Partners, Battery Ventures, Franklin Templeton Investments, Kearny Jackson, NewView Capital, Norwest Venture Partners, Sequoia Capital, Wing Venture Capital, Abrahami Avishai, Alex Kayyal, Giora Kaplan.