Sentra has secured $150m in strategic funding to expand its data security platform, as businesses look for ways to control the sensitive information accessed by increasingly autonomous AI agents.
Capital One Ventures led the investment, joined by existing backers Bessemer Venture Partners, Zeev Ventures, Standard Investments, Munich Re Ventures and Key1 Capital. The deal will also see a Capital One representative take a seat on Sentra’s board.
The New York and Tel Aviv-based company said it grew by more than 300% year-on-year, reflecting rising demand for security tools that can keep pace with enterprise AI adoption.
The funding highlights a growing area of concern for businesses deploying AI agents: the systems can access and process information at a speed and scale that traditional security controls were not designed to manage.
Unlike human employees, AI agents can operate continuously and inherit permissions from the accounts and systems they use. This creates the risk that an agent could access sensitive information that has not been properly classified or governed. At the same time, security teams may struggle to track where data is stored across cloud services, SaaS applications, data warehouses and on-premise environments.
Sentra’s approach is to secure the underlying data rather than rely solely on monitoring individual AI requests. Its platform maps sensitive information across an organisation’s environment, identifies which people, service accounts and AI agents can access it, and helps security teams reduce unnecessary permissions.
The technology brings together data security posture management, data detection and response, data access governance and data loss prevention. It also monitors agent behaviour for unusual activity, with automated remediation designed to revoke access and close risky sharing arrangements when a threat is identified.
Following an incident, the platform can reconstruct which information an AI agent may have accessed, giving security, legal and compliance teams evidence to investigate potential exposure.
A key part of the model is that the platform operates inside the customer’s own environment. Sentra says sensitive data is never copied out, avoiding the additional retention, residency and compliance requirements that can arise when organisations create a separate repository for security monitoring.
The $150m investment will support development across AI agent, copilot and model visibility, continuous least-privilege controls for human and non-human identities, and faster containment of risky agents. Sentra also plans to grow its field and channel programmes, increase marketing investment and expand into new geographical markets.
The company was founded in 2021 by Yoav Regev, Asaf Kochan, Ron Reiter and Yair Cohen. Its customers include Lyft, where the need to understand agent access has become part of the organisation’s wider AI deployment strategy.
Lyft CISO Chaim Sanders said, “Our teams at Lyft want to move fast with AI, but we need to know what data our agents can reach before we turn them on. Sentra gives us that answer across our whole environment, so security helps the rollout instead of slowing it down”.
Sentra co-founder and CEO Yoav Regev said, “AI agents are now the busiest consumers of enterprise data, and many of them inherit access to data that hasn’t been fully classified or governed. Traditional perimeter controls weren’t built for agents moving at machine speed. What organizations can do is make sure the data those agents reach is already secured. Sentra protects data where it lives and controls which identities, human and AI, can reach it, so organizations can deploy AI more quickly while staying in control. This investment lets us bring agentic data security to every enterprise putting agents to work.”
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