
Secretive Israeli cyber startup Glow raising over $100 million at $1 billion-plus valuation without a public product
Founded by Onavo co-founder Roi Tiger, Glow assembles a top-tier cyber team while keeping its product and technology under wraps, attracting elite investors including Sequoia and Index Ventures.
High-tech entrepreneur Roi Tiger, co-founder of Onavo and a former senior executive at Meta, is raising more than $100 million for his new startup, Glow, at a valuation exceeding $1 billion, Calcalist has learned.
Glow’s growing team includes several prominent cybersecurity executives. Among them are Ophir Arie, formerly of Medigate, and Omer Singer, previously head of cyber strategy at data cloud company Snowflake. Pini Pinhasov, a former senior executive at Claroty and co-founder of Medigate, which was acquired by Claroty for about $400 million, was also part of the founding team, but has since left.
The company is operating largely in stealth mode and is believed to be developing endpoint protection technology. Glow has already raised approximately $80 million from investors including Sequoia Capital, Index Ventures, Cyberstarts, founded by Gili Raanan, and Greenoaks Capital. In its previous funding round, the company was valued at roughly $400 million. Many of Glow’s investors overlap with those backing cybersecurity firm Wiz.
Tiger previously co-founded Onavo in 2009. The company developed cloud-based technology designed to reduce mobile data usage by compressing traffic from applications such as Facebook and Google Maps and routing it through its servers. Onavo was acquired by Meta in 2013 for between $150 million and $200 million.
The news on the funding comes shortly after another young Israeli cyber startup, Vega Security, formally announced a $120 million Series B round, nearly doubling its valuation and bringing total capital raised to $185 million in less than two years. The financing was led by Accel, with participation from existing backers Cyberstarts, Redpoint, and CRV.
Vega describes itself as the creator of the industry’s first AI-Native Security Analytics Mesh (SAM), a platform designed to handle the full workflow of a modern security operations center: visibility, detection, triage, investigation, and response. Unlike traditional systems that require companies to consolidate logs and alerts into a central repository before they can be analyzed, Vega’s approach works directly on data where it already resides across clouds and legacy systems.














