Pomegra
Israeli data security firm Sentra raised a $150M Series C led by Capital One Ventures to limit what AI agents can reach in corporate data in November 2026.
Key Takeaways
- Sentra announced a $150M Series C on November 4, 2026, led by Capital One Ventures.
- Total funding now exceeds $250M; valuation was not disclosed.
- The company reports more than 300% year-over-year growth.
Lead
Sentra, a data security company with offices in New York and Tel Aviv, announced a $150 million Series C on November 4, 2026. Capital One Ventures led the round and will place a representative on Sentra's board. Existing backers Bessemer Venture Partners, Zeev Ventures, Standard Investments, Munich Re Ventures and Key1 Capital also participated.
The company said it grew more than 300% year over year, though it did not publish revenue, customer counts or a valuation. Cumulative funding now stands above $250 million, according to the company.
What Does Sentra Actually Sell?
Sentra sells software that finds sensitive information across an enterprise, maps who and what can touch it, and flags unusual access. The platform covers cloud and on-premises storage. It classifies data, ties it to identities, and removes stale or excessive permissions.
The identity map now includes AI agents alongside employees and service accounts. The company says its analysis runs inside the customer's own environment, so data is not copied out for scanning. The product consolidates data security posture management, detection and response, access governance and data loss prevention in one platform.
Why Are AI Agents a Data Security Problem?
AI agents inherit the access of the people and systems that deploy them, and much of that access covers data nobody has classified. CEO Yoav Regev put it this way: AI agents are now the busiest consumers of enterprise data, and many inherit access to information that was never fully classified or governed.
An employee who can technically open a payroll folder rarely does. An agent running queries at machine speed will. The exposure was always there; the agent makes it active. That gap between granted access and appropriate access is the market Sentra is selling into.
Who Is Behind the Company?
Sentra was founded in 2021 by Regev, Asaf Kochan, Ron Reiter and Yair Cohen. Regev previously headed the cyber department of Israel's Unit 8200, and Kochan commanded the unit until early 2021. Reiter, the chief technology officer, sold his earlier company Crosswise to Oracle in 2016 for about $50 million. Cohen leads product and previously worked as a senior product manager at Datadog.
The company's earlier rounds were smaller. A $30 million Series A, led by Standard Investments, came in January 2023. A $50 million Series B led by Key1 Capital followed in April 2025, when headcount was roughly 85. The Series C triples the Series B check within about 19 months.
What Does a Bank-Backed Round Signal?
A financial institution's venture arm leading the round points to demand from regulated buyers. Banks hold large volumes of customer data and face supervisory pressure over how AI systems touch it. Capital One taking a board seat suggests a customer-adjacent relationship, though neither company has described commercial terms.
The undisclosed valuation limits how hard the round can be read. A step-up from a $50 million Series B is expected for a company claiming triple-digit growth, but without a price the market cannot judge whether the multiple is rich or modest. The company has also not said how much of the 300% figure comes from new customers versus expansion.
How Crowded Is the Field?
The field is crowded and consolidating. Sentra competes with Cyera, and with Securiti, which Veeam bought for $1.725 billion. Wiz now sits inside Google Cloud, which signals that large platforms want data security inside broader cloud security suites. Agent-focused vendors such as Zenity approach the same problem from the agent side.
That consolidation cuts two ways. Independent vendors face bundling pressure from suites, but acquisition prices of that size show buyers will pay for data security assets.
Use of Funds
Sentra plans to spend the proceeds on controlling AI agent access to data, protecting stored data, and entering new markets. It also intends to build data loss prevention more deeply into the platform and add AI governance features. Investment in core data discovery and classification continues.
Outlook
Sentra enters 2027 with more than $250 million raised, a bank-linked lead investor and a product aimed at a problem that grows with each agent deployment. The unknowns are the valuation, the revenue base behind the growth figure, and whether larger suite vendors absorb the category before independents reach scale. An exit, by acquisition or listing, would be the next real test of the price investors paid.
