Sentra Raises $150M to Control What AI Agents Can Reach in Corporate Data

Sentra has raised $150 million in a Series C round. Capital One Ventures led the deal and will take a board seat. Sentra announced the raise on November 4, 2026. The round brings its total funding to more than $250 million.

Sentra builds data security software for the age of AI agents. Its platform controls which people, service accounts, and AI agents can reach data inside a company’s systems. The company is based in Israel and was founded in 2021.

What does Sentra do?

Sentra secures corporate data as AI agents start to use it. The platform finds and classifies sensitive data across a company’s stores, maps who and what can access it, and enforces minimum access so nothing has more reach than it needs. It treats each AI agent as an identity that reads data, and it keeps that access under control.

This is a growing problem. Agents now read enterprise data constantly, often with no central oversight. Sentra’s CEO, Yoav Regev, calls agents the busiest consumers of enterprise data. His point is simple. If an agent can reach sensitive data it should not touch, that is a serious risk, and most old security tools were not built for it.

The round at a glance

Who invested in Sentra’s round?

Capital One Ventures, the venture arm of Capital One, led the round and will place a representative on Sentra’s board. Existing investors Bessemer Venture Partners, Zeev Ventures, Standard Investments, Munich Re Ventures, and Key1 Capital also took part. The round follows a $50 million Series B led by Key1 Capital in April 2025, and brings the total raised to more than $250 million. For more on who funds this space, see our AI agent investors tracker.

Why do AI agents create a data security risk?

AI agents create a new data security risk because each one acts like a user that reads data on its own, often all the time, with no central control plane. A company may run many agents, each with its own access, and lose track of what they can reach. If an agent is tricked or set up wrong, it can pull sensitive data it was never meant to see. Older security tools were built to protect people using software, not software acting on its own, which is the gap Sentra is filling.

What does Sentra’s platform do?

Sentra’s platform does several jobs at once. It classifies data across corporate stores and maps access permissions, including inherited ones that are easy to miss. It removes stale or high risk data and enforces minimum access. It can flag an agent that reaches for sensitive data it does not normally touch, strip the permissions involved, and produce a full record of everything an agent could have reached after an incident. Its analysis runs inside the customer’s own environment, so sensitive data never leaves.

Why does this round matter?

This round matters because agent security is turning into its own market. The first wave of agent funding went to the agents themselves. Now the tools that secure and govern them are drawing large rounds. Sentra says its business grew more than 300 percent over the past year, which shows how fast demand is rising. A bank like Capital One leading the round is a strong signal that large enterprises see agent data security as a must have. You can see where this fits in our agentic AI landscape.

What is next for Sentra?

Sentra will use the money to grow its platform and meet rising demand as more companies deploy agents. The challenge is keeping up with how fast agents are spreading inside enterprises. Sentra was founded in 2021 by Yoav Regev, Asaf Kochan, Ron Reiter, and Yair Cohen. Kochan is a former commander of Israel’s Unit 8200, and Regev once led its cyber department.

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