Sentra has raised $150 million to control what AI agents can reach inside enterprise data, as companies rush to deploy agents faster than they can govern them. Capital One Ventures led the strategic investment, with all of Sentra’s existing investors joining in, and a Capital One representative will take a seat on the company’s board. The funding follows a year in which Sentra says its business grew more than 300 percent.
What Sentra does
Sentra’s pitch is that data security was built for people, and agents broke that model. Each AI agent is an identity that reads data at machine speed, inheriting access that was never classified or governed. Sentra finds sensitive data where it lives, maps what people, service accounts and agents can reach, and enforces least privilege before an agent touches it.
The platform works in three stages. Before an agent acts, Sentra shrinks the exposure footprint by removing redundant and high-risk data agents should never find. During an incident, data-aware detection flags unusual access and revokes it automatically. Afterwards, it shows security teams exactly what an agent could have reached, with the business context to respond quickly.
Sentra also makes a point of never moving customer data. It analyzes data inside the customer’s own environment, across cloud, software services, warehouses and on-premises file shares, so sensitive records never leave the building. Alternatives that copy data into their own systems create a second estate to secure, with extra retention and residency risks for regulated industries.
Our read
The round’s story is who led it. Capital One runs one of the most regulated data estates in American banking, and its venture arm taking a board seat is a customer-grade endorsement. When a bank that lives under banking regulators bets $150 million on agent data governance, the pitch stops being a slide deck and starts being a procurement decision.
Sentra is also riding a funding wave for agent infrastructure. Applied Compute raised $350 million for custom AI infrastructure, and the money is moving from the models themselves to the plumbing around them: identity, access and control for agents that act on their own.
Why It Matters
AI agents are now the busiest consumers of enterprise data, and most companies cannot see what those agents can reach. That gap is a board-level risk: an agent with inherited access to unclassified data is a breach waiting for a prompt. Companies that fix access before agents scale will deploy faster; the rest will learn about it from an incident.
The funding wave around agents keeps growing. Nooks raised $500 million for AI sales agents, and investors are now backing the control layer as much as the models themselves, a shift that puts governance companies like Sentra in the middle of the boom.
Background
Sentra was founded in 2021 by Yoav Regev, Asaf Kochan, Ron Reiter and Yair Cohen, and is headquartered in New York and Tel Aviv. The company says the funding will expand its field and channel programs, grow its brand and move into new geographies, while Lyft’s CISO praised Sentra for showing what agents can reach before they are switched on.
Source: Sentra’s funding announcement
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