---
title: Data security firm Sentra raises $150 million Series C led by Capital One Ventures to build controls on what AI agents can reach | ctxsec
url: https://ctxsec.com/items/sentra-raises-150m-series-c-capital-one-ventures-agentic-data-security
description: "Sentra, founded in 2021 and based in New York and Tel Aviv, raised a $150 million Series C led by Capital One Ventures, bringing its total to over $260 million. Its platform finds and classifies sensitive data across cloud, SaaS, warehouses and file shares, maps what users, AI agents and service accounts can reach, and enforces least privilege. It will spend the money on agent-focused features and go-to-market expansion."
status: "official (company announcement as reported by SecurityWeek, Nov 4)"
published: 2026-11-04
---

> Sentra, founded in 2021 and based in New York and Tel Aviv, raised a $150 million Series C led by Capital One Ventures, bringing its total to over $260 million. Its platform finds and classifies sensitive data across cloud, SaaS, warehouses and file shares, maps what users, AI agents and service accounts can reach, and enforces least privilege. It will spend the money on agent-focused features and go-to-market expansion.

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official (company announcement as reported by SecurityWeek, Nov 4)

2026-11-04

### Data security firm Sentra raises $150 million Series C led by Capital One Ventures to build controls on what AI agents can reach

The pitch matches a common theme this year: rather than trying to control an agent's reasoning, limit what data it can reach. That works whichever vendor you pick: inventory which service accounts and agent identities can read sensitive stores, and cut that access before giving agents more autonomy.

Sources: [SecurityWeek: Agentic Data Security Firm Sentra Raises $150 Million (Nov 4)](https://www.securityweek.com/agentic-data-security-firm-sentra-raises-150-million/)