Sentra

Cybersecurity · AI · Enterprise Software

Funding

Sentra raises $150M Series C to lock down data from AI agents

Banking giant Capital One is bankrolling the defense, betting that unmonitored AI agents are the next big breach vector inside enterprises.

• Sentra closed a $150 million Series C led by Capital One Ventures, which also takes a board seat, bringing the Israeli startup's total funding past $250 million.
• Founded in 2021 by four Israeli tech and cyber veterans, including CEO Yoav Regev, a former commander of Unit 8200's cyber division, Sentra builds a data security platform that finds sensitive data, classifies it, and tracks which humans and AI agents can reach it.
• The platform runs analysis inside the customer's own environment rather than copying data to Sentra's servers, and can automatically strip excessive permissions when an AI agent reaches for data it doesn't normally touch.
• Sentra says its business grew more than 300% year-over-year, and the company now employs 130 people, with 65 based at its Tel Aviv headquarters.
• Each AI agent an enterprise deploys acts as a new identity accessing data around the clock, often inheriting permissions broader than its task requires, with no central system to govern it.
• Capital One, which itself suffered a major 2019 data breach, is signaling that banks want tools letting them adopt AI without losing control of customer data.
• The deal is part of a broader surge in Israeli cybersecurity funding, with local firms raising roughly $4.3 billion in the first three quarters of 2026 according to IVC and LeumiTech data.
• As companies rush to deploy AI agents faster than they can govern them, Sentra's raise shows investors betting that securing the data layer, not just the models, will be the critical control point for enterprise AI.