Supio is purpose-built AI for personal injury litigation document analysis. Founded in 2021 by former Microsoft engineers Jerry Zhou and Kyle Lam, the Seattle-based company has raised $91 million in total funding ($25M Series A in 2024, $60M Series B in April 2025 led by Sapphire Ventures) — making it one of the best-funded niche legal AI platforms.
Core capabilities: connects directly to a firm's existing file systems, builds document graphs of case evidence using specialized language models, extracts structured data from medical records, police reports, and expert notes, supports human verification workflows for accuracy validation, and accelerates case timeline construction.
Best fit: personal injury firms handling high-volume case loads where document review is the primary bottleneck. Particularly valuable for firms transitioning from manual chronology preparation to AI-assisted workflows.
Pricing is custom by firm size and case volume, with free trial available.
Supio represents a growing trend: deep AI specialization in a specific practice area rather than horizontal legal AI. Where general platforms like Harvey serve Big Law breadth, Supio goes deep in PI document workflows — and the funding suggests the niche-specialist thesis is working.
