Signed

AI investors

AI investors back founders building with or on top of modern ML systems — foundation models, agent frameworks, inference infrastructure, and applied AI across verticals. Most active angels in this space come from operator or research backgrounds and are drawn to teams with technical depth, a distinct data moat, or unusual distribution.

Rounds are competitive and often oversubscribed, and warm intros through researcher or founder networks tend to beat cold inbound. Angels often contribute technical sparring, hiring help, and introductions to compute and data partners.

Companies in this space

OpenAI Anthropic Perplexity Mistral Hugging Face Cursor Runway ElevenLabs