Sentra has raised $150 million in a Series C led by Capital One Ventures to expand its platform for controlling what AI agents can reach inside corporate data. The New York and Tel Aviv company announced the round on Nov. 4 and said its business grew more than 300% over the past year.
Existing investors Bessemer Venture Partners, Zeev Ventures, Standard Investments, Munich Re Ventures and Key1 Capital also participated. A Capital One representative will join Sentra's board. Sentra did not disclose a valuation, but investors have now put more than $250 million into the company, which raised a $50 million Series B led by Key1 in April 2025.
“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”— Yoav Regev, Co-founder and CEO of Sentra
Sentra's pitch is that the security problem with enterprise AI agents sits in the data they can already touch. Many agents inherit permissions to datasets that were never fully classified or governed, and Sentra argues traditional perimeter controls were not built for software moving at machine speed.
Key facts
- 01Sentra raised $150M in a Series C led by Capital One Ventures, announced Nov. 4, 2026.
- 02Bessemer, Zeev Ventures, Standard Investments, Munich Re Ventures and Key1 Capital also joined the round.
- 03Sentra says it grew more than 300% year over year; it did not disclose a valuation.
- 04Investors have put more than $250M into Sentra since its 2021 founding, including the new round.
- 05A Capital One representative will join Sentra's board of directors.
The platform works on data at rest across cloud services, SaaS apps, data warehouses, on-premises file shares and AI knowledge stores. It classifies sensitive data with models tuned to each customer, then maps which identities, human and AI, can reach each dataset, including access inherited through other permissions.
From there, Sentra enforces least-privilege access for service accounts and agents and removes stale or high-risk data. It flags agents reaching for sensitive data they do not normally touch, can revoke access or strip risky sharing automatically, and routes the highest-risk issues to data owners. After an incident, it produces a record of everything an agent could have reached, with business context.
Sentra runs its analysis inside the customer's own environment, so sensitive data does not leave it. The company argues that vendors that copy customer data into their own systems create a second data estate, adding retention and residency risk for regulated industries. Lyft is among the named customers.
“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.”— Chaim Sanders, CISO at Lyft
The new money will fund deeper visibility into the agents, copilots and models that touch sensitive data, continuous least-privilege controls for human and non-human identities, and faster containment. On the commercial side, Sentra plans to scale its field and channel programs and expand into new geographies.
Yoav Regev founded Sentra in 2021 with Asaf Kochan, Ron Reiter and Yair Cohen. The platform combines data security posture management, data detection and response, data access governance and data loss prevention.
Sentra says only a small minority of organizations have governance in place to control what agents touch, and it expects agent counts at large enterprises to climb steeply over the next few years. Regev said the investment lets Sentra bring agentic data security to every enterprise putting agents to work.
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