Overwatch raises $15M Series A led by Mouro Capital for AI threat intelligence

Overwatch Secures $15M Series A

Overwatch, a New York-based cybersecurity and threat-intelligence startup, has raised a $15 million Series A round led by Mouro Capital. The funding was announced on October 26, 2026.

Who Participated

The round included participation from:

• Capital One Ventures
• Mouro Capital (lead)
• Visa Ventures
• Y Combinator
• New Era Capital Partners
• PruVen Capital

What Overwatch Does

Overwatch operates a threat-intelligence platform built around AI agents that monitor hundreds of thousands of open sources — including news, social media, forums and the dark web. The platform is designed to deliver real-time fraud, cyber-threat and brand-protection intelligence to financial institutions and enterprise security teams.

Company Background

Overwatch was founded in 2022 by Arjun Bisen, Zara Perumal and Tad Mielnicki, and is backed by Y Combinator as part of its Summer 2022 batch. The founding team built the product on risk and threat-intelligence careers spanning Stripe, Google's Threat Analysis Group and the Australian diplomatic service.

Acquisition Perspective

The Series A gives Overwatch fresh capital at a stage where threat-intelligence platforms are increasingly relevant to financial institutions and enterprise security buyers. The presence of strategic investors such as Capital One Ventures and Visa Ventures alongside the lead, Mouro Capital, points to interest from the financial-services ecosystem the company serves. For acquirers in cybersecurity, fraud prevention or financial infrastructure, Overwatch represents a New York-based, Y Combinator-backed asset with an AI-agent approach to open-source and dark-web monitoring.