Sentra has raised $150 million in a strategic investment led by Capital One Ventures, as businesses face a new problem: controlling which sensitive data their AI agents can access.
Founded in 2021, Sentra was launched by four cybersecurity veterans: Yoav Regev, Asaf Kochan, Ron Reiter and Yair Cohen, who now lead the company as CEO, President, CTO and CPO, respectively. Existing investors Bessemer Venture Partners, Zeev Ventures, Standard Investments, Munich Re Ventures and Key1 Capital also participated; Capital One gets a board seat.
Sentra discovers sensitive data across cloud, SaaS, warehouses and on-premises files. It maps who and what can reach that data, then helps enforce least privilege.
Picture a copilot connected to a company knowledge base. It might surface payroll files, customer records or confidential strategy documents alongside routine material. The risk need not involve a malicious agent: permissions that worked for employees may become too broad when autonomous software searches across multiple systems at once.
Sentra previously added support for Microsoft Copilot Studio, Amazon Bedrock and ChatGPT Enterprise. Its Shadow AI protection addresses another exposure point: employees pasting sensitive text or uploading files into generative AI applications. Both efforts reflect a shift from protecting individual applications to controlling the information they can reach.
Sentra says it can flag unusual access, revoke risky permissions and show investigators what an agent could reach, without moving sensitive information outside customers’ environments.
Funding will expand visibility into agents, copilots and models and support sales growth and new markets.
For enterprise AI, the question isn’t just what agents can do. It’s what they can see before anyone notices.
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