Chalk

Chalk is a high-growth AI infrastructure platform that raised a $50M Series A at a $500M valuation in May 2025. While the submission provided lazy and hyperbolic claims (e.g., 'most people have used my product'), independent verification confirms significant B2B traction with major customers like Ramp, Vital, and Whatnot. The platform solves a critical problem in real-time AI inference (fresh data pipelines), positioning it as a key player in the AI stack ('The Databricks of Inference'). The score reflects top-tier utility and traction, penalized slightly for the poor quality of the submission data.