Israeli Cybersecurity Startup Glow Raises $180 Million and Becomes Unicorn Within a Year

Israeli cybersecurity company Glow has revealed its operations for the first time, announcing the completion of three funding rounds totaling $180 million within a year. Founded in February 2025 by Roi Tiger, Omri Zinger, and Ofir Aryeh, Glow develops an AI-driven platform focused on securing endpoint devices such as computers and laptops within organizations. The company currently employs around 100 people across Israel and the US and aims to become one of the largest players globally in its field.

Roi Tiger, Glow's CEO and co-founder, previously held senior engineering roles at Meta for nine years, including Vice President of Engineering. He co-founded the startup Onavo, acquired by Facebook (now Meta) in 2013, which laid the foundation for Facebook's development center in Israel. Co-founders Zinger and Aryeh both served in Israel's elite Unit 8200 and have extensive cybersecurity experience. The management team also includes Arnon Yosef, former Senior Director of Product at Meta Israel, and Emily Heath, former CISO at United Airlines and DocuSign.

Glow's AI agents continuously learn each client's work environment and policies to distinguish legitimate activities from risks, enabling the system to automatically allow or remove software. Tiger emphasized the company's proactive approach to preventing security incidents rather than reacting after they occur, especially given the rapid evolution of AI threats. The startup is already working with paying customers across various industries, including financial services, retail, and healthcare, though it has not disclosed client names.

The latest $100 million funding round was led by Sequoia Capital, Cyberstarts, Greenoaks, and Redpoint Ventures, with participation from Index Ventures, Swish Ventures, Lux Capital, and Holly Ventures. Earlier rounds included a $20 million seed round and a $60 million Series A round, valuing the company at $1.2 billion. Glow plans to use the funds to expand go-to-market teams, hire additional staff, and invest in research and development.

Tiger, who returned to Israel from California in 2022, highlighted Israel's world-class cybersecurity ecosystem as a key advantage. He aims to build Glow into one of the top three global endpoint security companies and intends for it to remain independent and significant in the market. The company is focused on laying the right infrastructure and assembling a strong leadership and investor base to support its ambitious growth plans.