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

Israeli cybersecurity startup Glow has publicly revealed its operations and announced the completion of three funding rounds totaling $180 million within about a year. Founded in February 2025 by Roee Tiger, Omri Zinger, and Ofir Aryeh, the company is valued at $1.2 billion and employs around 100 staff across Israel and the US. The latest $100 million Series B 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 led by Sequoia and Cyberstarts, and a $60 million Series A led by Index Ventures.

Glow develops an AI-driven platform focused on securing endpoint devices such as laptops and desktops within organizations. CEO Roee Tiger, a former Meta engineering executive and co-founder of Onavo (acquired by Meta in 2013), explained that about 70% of cybersecurity incidents originate at endpoints. Glow’s approach emphasizes prevention rather than reactive responses, using AI agents that continuously learn each client’s environment and policies to automatically allow or remove software, aiming to stop threats before they occur.

The founding team has deep cybersecurity experience, with all three founders having served in Israel’s elite Unit 8200. The company’s leadership also includes Arnon Yosef, former Senior Director of Product at Meta Israel, and Emily Heath, former CISO at United Airlines and DocuSign, now COO at Glow. The startup already serves paying enterprise customers across various sectors including financial services, retail, and healthcare, though it does not disclose client names.

Tiger highlighted the company’s ambition to become one of the top three global endpoint security firms, targeting a $40 billion market. Glow aims to build a large, independent company by investing in infrastructure, expanding go-to-market teams, and continuing R&D. The founders and investors bring experience from successful exits like Waze, underscoring their long-term vision for growth and innovation in cybersecurity.