Sentra Raises $150M Led By Capital One Ventures For AI Data Security

Sentra raised $150 million in a strategic capital investment led by Capital One Ventures to expand its agentic data security platform, which governs what AI agents can access inside enterprise data.

By the Numbers

$150M
This round
>300%
YoY growth claimed
$30M
Series A, Feb 2023
$50M
Series B, Apr 2025
$250M+
Total funding, reported
Trace Cohen
By Trace Cohen · Value Add Pulse Funding Desk
Founder & Editor-in-chief, Value Add VC
3 min read
Sentra Raises $150M Led By Capital One Ventures For AI Data Security: key figures
ShareXLinkedInEmail

THE RUNDOWN

1

A $150M raise from a bank's own venture arm, with a board seat attached, signals how seriously regulated enterprises now take AI-agent data access as a board-level risk.

2

Sentra says it grew more than 300% year-over-year, among the fastest growth rates disclosed by any data-security vendor this cycle.

3

This is Sentra's third disclosed round since 2023 -- Series A in 2023, Series B in 2025, this round in 2026 -- a financing cadence that outpaces most cybersecurity peers.

4

The round pushes Sentra's total disclosed funding above $250M, positioning it against better-funded rivals Cyera, Varonis and BigID in the crowded data-security-for-AI category.

The VC Read

Value Add VC analysis

The board seat is the tell, not the $150M. When a bank's CVC arm takes a board seat at a data-security startup instead of just writing a check, that's usually because the bank wants direct input on how the product handles its own AI-agent rollout -- worth confirming whether Capital One becomes a disclosed reference customer within two quarters. Diligence item for anyone benchmarking Sentra against Cyera or BigID: push for an actual ARR number next round, because '300% YoY growth' off an undisclosed base tells you nothing about scale.

Analysis

As of November 4, 2026, Sentra has raised $150 million in a strategic capital investment led by Capital One Ventures, with a Capital One representative joining Sentra's board, according to the company's own press release. Existing investors Bessemer Venture Partners, Zeev Ventures, Standard Investments, Munich Re Ventures and Key1 Capital also joined the round.

What Sentra does

Sentra, which calls itself "the agentic data security company," was founded in 2021 by Yoav Regev, Asaf Kochan, Ron Reiter and Yair Cohen, and is headquartered jointly in New York and Tel Aviv. Its platform combines data security posture management, data detection and response, data access governance and data loss prevention into one system that analyzes data where it already lives -- cloud, SaaS, data warehouses, on-prem file shares and AI knowledge stores -- so sensitive data never has to leave the customer's environment. Co-founder and CEO Yoav Regev frames the pitch around AI agents directly: "AI agents are now the busiest consumers of enterprise data," he said, adding that the new capital "lets us bring agentic data security to every enterprise putting agents to work." Lyft CISO Chaim Sanders is a customer reference in the release, saying "Sentra gives us that answer across our whole environment."

Sentra's funding history

Sentra's funding history shows a clear acceleration:

“- This round, Nov 2026 -- $150 million, Sentra's largest disclosed raise, pushing total reported funding past $250 million, per the company.”

  • Series A, Feb 2023 -- $30 million, led by Standard Investments, with Munich Re Ventures, Moore Strategic Ventures, Xerox Ventures, INT3 and existing backers Bessemer Venture Partners and Zeev Ventures participating, per HelpNetSecurity.
  • Series B, Apr 2025 -- $50 million, led by Key1 Capital, with the same existing investors joining, according to fintech.global, pushing total funding above $100 million.
  • This round, Nov 2026 -- $150 million, Sentra's largest disclosed raise, pushing total reported funding past $250 million, per the company.

Who invested in Sentra

Capital One Ventures led this round and is taking a board seat, a notable structure for a bank's corporate venture arm investing in a data-security vendor rather than a fintech peer. Returning investors Bessemer Venture Partners, Zeev Ventures, Standard Investments and Munich Re Ventures all participated again, having backed Sentra since its Series A or Series B.

Data security market and competitors

Sentra is competing in a crowded field of vendors racing to secure enterprise data as AI agents get access to it, including Varonis, Cyera, BigID and Rubrik, each pitching some version of data security posture management for the AI era. Sentra's pitch is that growth has already validated the approach: the company says it grew more than 300% year-over-year over the past year, though it has not disclosed revenue, customer count, or a valuation alongside this round -- all of which make it hard to size Sentra directly against rivals that do publish ARR figures.

What to watch next

The caveat is that Sentra's growth and customer claims in this release are self-reported, with no independent revenue or ARR figure to check them against, and no valuation was disclosed for this round -- a detail that matters more than the headline figure for judging whether this is a markup or a flat round. Watch whether Sentra discloses ARR or a priced valuation at its next round, and whether Capital One's board seat leads to Capital One itself becoming a reference customer, which would be the strongest signal yet that banks are serious about this risk category. Pulse tracks rounds like this one in our funding tracker.

ShareXLinkedInEmail

More from the Pulse archive: Startup & VC Funding coverage → · All topics

Key Sources

1 source

Reported by PR Newswire · Analysis by Value Add Pulse.

← Back to Pulse

THE WIRE in your inbox— Tech, startup & VC news with The VC Read, a few times a week. Free to subscribe, no spam.

No spam, unsubscribe anytime. Sent via Substack · Privacy · or subscribe on Substack ↗