Glow exits stealth as a $1.2B unicorn on $180M Series A for AI endpoint security
What's the deal? Glow Security has emerged from stealth with a $180 million Series A that values the endpoint security startup at $1.2 billion. Sequoia, Cyberstarts, Greenoaks, and Redpoint Ventures co-led the round, with Index Ventures, Lux Capital, Swish VenturesDealroom has a profile for this one. Try Dealroom →, and Holly VenturesDealroom has a profile for this one. Try Dealroom → also participating.
Why now? Glow says regular AI usage on corporate devices jumped from 15% to more than 45% in under a year. It argues existing endpoint tools were never built for AI and react to threats rather than prevent them.
What's the endgame? Glow has built an AI-native endpoint security platform for proactive risk prevention, deploying specialised AI agents that map environments and analyse risk in real time. The funds will expand its research arm, Glow LabsDealroom has a profile for this one. Try Dealroom →, launch its first products, and accelerate go-to-market operations.
What could go wrong? Glow flags three new risk categories it aims to cover: "shadow AI," where staff use tools outside corporate controls; inconsistent configuration of AI systems across thousands of endpoints; and connected ecosystems of plugins, packages, and MCP servers.
Chief operating officer Emily Heath framed the problem plainly. "AI has created an entirely new attack surface that security teams are just beginning to understand," she told SiliconANGLE, adding that employees now connect tools and agents to company data "much faster than traditional approval processes were designed to handle."
The signal: The size stands out — Glow's $180 million ranks in the top 1% of cybersecurity Series A rounds over the trailing 48 months. That a company can debut as a unicorn on its first institutional round underscores how quickly investors are moving to fund the emerging category of AI-specific security.
Read more: SiliconANGLE
Image credit: Visual Content
