Overwatch Raises $15M Series A Led By Mouro Capital

Overwatch raised $15 million in a Series A led by Mouro Capital, with Visa Ventures and Capital One Ventures joining as the AI threat-detection startup expands its bank and fintech fraud-investigation tools.

By the Numbers

$15M
Overwatch Series A, Oct 2026
$7.38M
Overwatch seed round, Feb 2025
$6.87B
Threat intelligence market, 2025
$31.58B
Threat intelligence market by 2034
18.3%
Market CAGR, 2026-2034
Trace Cohen
By Trace Cohen · Value Add Pulse AI Desk
Founder & Editor-in-chief, Value Add VC
2 min read
Overwatch Raises $15M Series A Led By Mouro Capital: key figures
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THE RUNDOWN

1

Overwatch's $15M Series A includes both Visa Ventures and Capital One Ventures, giving it direct ties to two card networks.

2

The company has never disclosed revenue or customer growth, leaving outsiders unable to judge traction independently.

3

It joins a wave of AI-security financings this month, including Infisical's $40M Series B for AI-agent infrastructure.

4

PruVen Capital backed both Overwatch's 2025 seed and this Series A, the only investor with continuity across both rounds.

The VC Read

Value Add VC analysis

The two corporate names in this round matter more than the total: Visa Ventures and Capital One Ventures aren't passive checks, they're distribution tests. The diligence question is whether either network actually pilots Overwatch inside its own fraud operations in the next two quarters — that's the signal that would separate this from a standard AI-security raise in a market CrowdStrike and Check Point already dominate.

Analysis

Overwatch, the Brooklyn-based AI threat-detection startup, raised $15 million in a Series A round led by Mouro Capital on October 26, 2026, according to The SaaS News. Visa Ventures, Capital One Ventures, PruVen Capital, New Era Capital Partners, and Y Combinator all participated, extending a syndicate that includes two corporate venture arms with a direct stake in fraud and payments risk.

What Overwatch does

Overwatch was founded in 2022 by CEO Arjun Bisen and provides AI-powered digital threat detection and defense, helping banks and fintechs investigate threats across cybersecurity, fraud, and financial crime. The company is based in Brooklyn, New York.

Overwatch's funding history

Overwatch raised a $7.38 million seed round in February 2025 before this Series A. PruVen Capital backed both the seed and the new round, giving it the longest track record with the company of any investor named publicly.

“Overwatch raised a $7.38 million seed round in February 2025 before this Series A.”

Who invested in Overwatch

Mouro Capital led the round. Visa Ventures and Capital One Ventures — both corporate venture arms of payment networks with a direct interest in fraud reduction — joined alongside PruVen Capital, New Era Capital Partners, and Y Combinator.

Threat intelligence market and competitors

The global threat intelligence market was valued at $6.87 billion in 2025 and is projected to grow to $31.58 billion by 2034, a compound annual growth rate of 18.3%, according to Fortune Business Insights. Overwatch competes in a field that includes established players like CrowdStrike, Anomali, and Check Point Software Technologies, though none of those companies focus specifically on bank and fintech fraud investigation the way Overwatch does.

The raise also adds to a run of AI-security financings Pulse has tracked this month:

- Infisical — raised a Series B at a $600 million valuation to build security infrastructure for AI agents, a different corner of the market from Overwatch's fraud-investigation focus. Pulse coverage

Taken together, that's a sign investors are funding AI-native security across multiple categories at once, not just one, and that fraud-focused tooling is attracting payment-network money specifically rather than generalist security VCs alone.

What the funding misses

Overwatch has not disclosed revenue, customer count, or growth rate alongside this round — unusual for a Series A this size. However, that gap makes it hard to independently judge whether the $15 million round reflects strong traction or simply a crowded, well-funded category. The company's own total-raised figure varies slightly across trackers, a reminder that a lot of early-stage funding reporting still runs on press releases rather than audited disclosures, and that founders and competitors alike often have to triangulate a startup's real capital position from several inconsistent secondary sources rather than one authoritative filing.

What to watch next

Whether Overwatch discloses customer or revenue metrics at its next round, and whether its payments-network backers, Visa Ventures and Capital One Ventures, translate into distribution deals with banks rather than staying passive checks. A strategic pilot with either network would be a far stronger signal of product-market fit than the round size alone.

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Key Sources

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