Legal AI startup Supio announced a $60 million Series B funding round today, led by existing investor Sapphire Ventures with participation from Mayfield and Thomson Reuters Ventures. The Seattle-based company, which builds specialized AI tools for personal injury and mass tort law firms, has now raised a total of $91 million as it expands its leadership team and product offerings.
The investment comes at a time when legal tech is experiencing a renaissance, with specialized vertical solutions gaining traction over one-size-fits-all AI approaches. For Supio, the focus on personal injury law has paid off—the company reports 4x Annual Recurring Revenue growth since emerging from stealth with its $25 million Series A in August 2024.
"This funding allows us to expand our AI platform that's already helping law firms win better settlements and litigation for their clients," said Jerry Zhou, co-founder and CEO of Supio. "Our combination of specialized legal AI and human verification provides attorneys with accurate insights and drafting they can confidently use in negotiations and court."
That human verification layer may be Supio's key differentiator in a market where AI hallucinations remain a persistent concern. The company claims its hybrid approach has set "a new standard for accuracy and reliability in legal AI"—a bold assertion, but one that appears to be resonating with customers.
The results are compelling: firms report settlement increases of 20-30% per case according to Travis Legal Offices, while Thomas Law claims a 62% increase in annual case volume since adopting the platform. In a particularly high-profile win, Supio helped TorHoerman Law secure a $495 million verdict against Abbott Labs.
The company is bolstering its leadership ranks to handle the growth, bringing on Jay Deubler to lead Sales (previously at Avalara), Gwen Sheridan for Customer Success (from Highspot), and Jim Sinai as head of Marketing (a veteran of Salesforce's Einstein AI launch and Procore's IPO).
The funding will support expanding Supio's engineering and AI research teams, accelerating product development, and scaling go-to-market operations. The company recently launched new document intelligence tools optimized specifically for personal injury cases.
With legal teams under constant pressure to do more with less, Supio’s specialized AI approach could redefine the economics of plaintiff law—turning reams of documents into actionable insights with unprecedented speed. By helping smaller firms compete with better-resourced opponents, the company positions itself as something of an equalizer in the legal ecosystem—while building what could become a very profitable business in the process.
"We're building technology that doesn't just save time, but fundamentally improves case outcomes," Zhou said. That's the kind of promise that could make legal AI feel less like a luxury and more like a necessity for competitive litigation practices nationwide.