Raindrop, a San Francisco, California–based monitoring platform for AI agents, has raised $15 million in Seed funding.
Investors
The round was led by Lightspeed Venture Partners, with participation from top AI companies and founders, including Figma Ventures, Vercel Ventures, the founders of Replit (Amjad Masad and Michele Catasta), Cognition (Walden Yan), Framer (Koen Bok and Joen van Dijk), Speak (Andrew Hsu), Notion (Akshay Kothari), and Y Combinator.
Lightspeed Venture Partners is a multistage venture capital firm focused on accelerating disruptive innovations and trends in AI, enterprise, consumer, health, and fintech. Lightspeed and its global team currently manage over $30 billion in assets under management (AUM) across the Lightspeed platform, with investment professionals and advisors based in the U.S., Europe, India, Israel, and Southeast Asia.
Raindrop Use of Funds
The company will use the funding to meet growing enterprise demand and advance its monitoring and issue-detection capabilities for AI agents.
About Raindrop
Founded by Ben Hylak, Zubin Koticha, and Alexis Gauba, Raindrop is an applied AI research company building “Sentry for AI agents”—a monitoring infrastructure that detects when AI agents fail silently in production. Its platform offers Sentry-style notifications, automated issue discovery, triage, and detailed explanations of failures. Raindrop allows AI engineering teams to discover, track, and fix issues in their agents. The company also provides Raindrop Experiments, an A/B testing system for AI agents that enables teams to validate fixes and improvements.
Funding Details
Company: Raindrop
Raised: $15.0M
Round: Seed
Funding Date: December 2025
Lead Investor: Lightspeed Venture Partners
Additional Investors: Figma Ventures, Vercel Ventures, Amjad Masad, Michele Catasta, Walden Yan, Koen Bok, Joen van Dijk, Andrew Hsu, Akshay Kothari, Y Combinator
Company Website: https://www.raindrop.ai/
Software Category: AI Agent Monitoring / Observability
Source: https://www.prnewswire.com/news-releases/raindrop-raises-15-million-to-detect-critical-ai-agent-failures-302628853.html