Stealth Exit With a Heavyweight Backing
Tel Aviv-based Glow has pulled back the curtain on its operations, announcing a massive $180 million Series A round that values the young company at $1.2 billion. The funding, revealed on July 22, 2026, was led by a consortium including Sequoia, Cyberstarts, Greenoaks, and Redpoint Ventures.
Other investors in the round include Index Ventures, Swish Ventures, Lux Capital, and Holly Ventures. That’s a crowded cap table for a company that’s been operating in stealth mode, but it signals the kind of confidence investors are placing in the firm’s approach to endpoint security.
Founded by a Who’s Who of Security and Tech
Glow was founded in 2025 by a team with serious pedigree. CEO Roi Tiger previously served as VP of engineering at Meta. CTO Omer Singer was head of cybersecurity strategy at Snowflake. VP of R&D Ophir Arie held the same title at Claroty.
The leadership bench extends further. Arnon Joseph, formerly senior director of product at Meta, is Chief Product Officer. Emily Heath, who served as CISO at both United Airlines and DocuSign, is Chief Strategy Officer. Heath also sits on the board at Wiz and is a partner at Cyberstarts.
The Problem: Endpoints Are a Mess in the AI Age
The core pitch is straightforward, even if the technology behind it is complex. Traditional endpoint security tools weren’t built for environments where employees are feeding corporate data into AI tools at a dizzying pace, and where attackers are deploying what Glow describes as “Mythos-class capabilities” to exploit weaknesses at machine speed.
Glow’s answer is adaptive prevention. The company deploys specialized AI agents that map the environment, analyze risk in real time, and automatically enforce policies. It’s not about blocking everything—it’s about understanding context and making smart decisions about what should run on an endpoint.
“We leverage context and a reasoning engine to proactively allow or remove software,” the company explained. The goal is to shrink the endpoint attack surface while still letting employees adopt AI tools securely. That balance is the hard part, and it’s exactly where most legacy tools stumble.
Real Customers Already On Board
Despite the stealth mode, Glow hasn’t been hiding from everyone. The startup has already signed enterprise customers across financial services, healthcare, and retail. Those early adopters are a key validation point—they’re putting real workloads on a platform that, until today, was largely invisible to the broader market.
Heath, speaking from her experience in the CISO seat, framed the challenge in stark terms. “I sat in the CISO seat for a long time, and I can tell you the tools available to us were never built for what enterprises face today,” she said. “Every enterprise wants to move faster with AI. The question isn’t whether they’ll adopt it—it’s whether security can keep up.”
What the $180M Will Fund
The new capital is earmarked for two main priorities. First, accelerating go-to-market efforts in the US. Second, expanding Glow Labs, the company’s research arm.
For a company with this kind of valuation so early in its lifecycle, the pressure to deliver is real. But the team’s track record—Meta, Snowflake, Claroty, United Airlines, DocuSign—suggests they know what they’re getting into.
Related Funding News in Cybersecurity
Glow’s launch is part of a broader wave of investment in AI-focused security startups. Empirical Security Raises $25 Million in Series A Funding shows that even smaller rounds are attracting attention. Meanwhile, Neo Emerges From Stealth With $100M to Control and Secure Enterprise AI Software demonstrates that the market for AI security is heating up fast.
Other notable raises include Valarian Raises $50 Million for Sovereign Infrastructure Control Layer and Keyfactor’s $1 billion+ investment for AI and post-quantum security. The pattern is clear: investors are betting big on security startups that can handle the AI era’s unique challenges.
The Bottom Line
Glow’s launch is a signal, not just a funding announcement. It’s a bet that endpoint security needs a fundamental rethink—not incremental patches, but a new architecture built around AI agents and adaptive policies.
Whether the company can live up to its $1.2 billion valuation remains to be seen. But with a leadership team this experienced, and a funding round this large, Glow is certainly one to watch in the endpoint security space.
