Vishnu Sampathkumar is Co-Founder of Autumn AI, a real-time signal intelligence platform for GTM teams that surfaces buying signals from prospect activity across the internet.

Vishnu studied Computer Science and Mathematics at Columbia University, where he met his co-founder Shiv Kampani on the first day of orientation. He previously worked as an ML engineer at Modulus (an AI security startup) and built sourcing tech for VC firm Sierra Ventures.

Vishnu won a Grand Award at IRIS National Fair and represented Team India at ISEF 2021. He previously worked at Meta before quitting to start Autumn AI.

Autumn AI was accepted into Y Combinator's Winter 2026 batch and is based in San Francisco. The company monitors posts, commits, blogs, and announcements to help sales teams identify prospects showing buying intent in real-time.

Autumn AI helps GTM teams track entire target universes across multiple platforms, enabling them to be first to know and first to act on prospect signals. The platform surfaces buying signals the moment they appear, helping sales teams optimize workflows like incorporation prospecting and enterprise account monitoring.