Sapphire Ventures leads the round, with Mayfield and Thompson Reuters Ventures also backing the legal AI leader as the startup expands its leadership team to support new growth

SEATTLE–(BUSINESS WIRE)–Supio, a legal AI platform trusted by personal injury and mass tort plaintiff law firms, today announced it has raised $60 million in Series B funding. The round was led by existing investor Sapphire Ventures, with participation from new investors Mayfield and Thomson Reuters Ventures. The new investment brings Supio’s total funding to date to $91 million.

The company’s unique approach to combining specialized AI with human expert verification has set a new standard for accuracy and reliability in legal AI, addressing the critical challenge of hallucinations that plague many automated solutions. This has been particularly valuable in litigation settings where precision and confidence in the data are paramount.

“Supio is transforming how personal injury and mass tort litigation is practiced through specialized AI,” said Rajeev Dham, Partner at Sapphire Ventures and Supio Board Member. “We believe their exponential growth demonstrates that law firms are embracing AI tools that deliver measurable advantages in case preparation and outcomes. We aim to recognize a category-defining company when we see one, and we’re proud to deepen our partnership with the team revolutionizing this practice area.”

The Series B funding will support the company’s ambitious growth plans, including expanding its engineering and AI research teams, accelerating product development and scaling go-to-market operations to reach more law firms nationwide. The company recently launched a new suite of document intelligence tools to meet the needs of current users as well as taking into account what AI capabilities work best for personal injury cases.

“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. We’re building technology that doesn’t just save time, but fundamentally improves case outcomes.”

Strengthens Leadership Team to Meet Growing Market Demand

Supio also announced the appointment of several key executives to support its rapid growth, including Jay Deubler to lead Sales, Gwen Sheridan to lead Customer Success and Jim Sinai to head Marketing. Jay Deubler joins with proven experience scaling revenue at Avalara from early stages through IPO. Gwen Sheridan brings valuable expertise from Highspot where she led all post-sales functions. Jim Sinai, a vertical SaaS marketing specialist, previously launched Einstein AI at Salesforce and led Procore through its IPO.

“Our growth since Series A confirms what we’ve believed all along—that specialized AI built for personal injury and mass tort law can transform how these practices operate,” Zhou said. “By expanding our executive team, we’re positioning Supio to meet the tremendous market demand for our AI-first approach to legal document workflows, and to deliver concrete results: faster case resolution, stronger settlements, and ultimately better outcomes for the individuals seeking justice.”

Accelerating Growth and Impact Since Series A

Since emerging from stealth in August 2024 with its $25 million Series A funding, Supio has experienced four times Annual Recurring Revenue (ARR) growth and demonstrated the transformative impact of its AI platform. The company has significantly expanded its customer base, now serving many of the top personal injury and mass tort law firms across the United States including Huges & Coleman, Daniel Stark, Thomas Law Offices, and Whitley Law.

Supio’s specialized AI platform has proven particularly valuable in helping firms win bigger. Firms such as Travis Legal Offices have reported getting at least 20-30% per case while Thomas Law reported increasing their annual case volume 62% since adopting Supio. In high-stakes litigation, Supio helped TorHoerman Law secure a landmark $495 million verdict against Abbott Labs. By combining AI-powered document analysis with rigorous human verification, Supio has established itself as the trusted solution for legal teams handling complex cases involving thousands of documents.

“Thomson Reuters Ventures invests in innovative companies that align with our strategic focus and the markets we serve. In the legal industry, personal injury and mass tort litigation demand specialized AI solutions designed specifically for these complex practice areas, and Supio addresses these unique challenges with both accuracy and depth,” said Tamara Steffens, Managing Director, Thomson Reuters Ventures. “We’re confident that Supio’s platform, built from the ground up, will become essential for firms serious about maximizing case outcomes.”

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About Supio

Supio is the leading AI platform transforming how personal injury and mass tort law firms build stronger cases and achieve superior outcomes. Supio’s Document Intelligence Platform converts complex case materials into actionable insights, combining specialized AI with human expert verification to ensure unmatched accuracy. Built with security and compliance at its foundation, Supio streamlines the entire case lifecycle—from pre-litigation analysis to courtroom strategy. Law firms using Supio report faster case resolution, higher settlement values, and deeper client trust through our precision-driven document analysis, advanced case economics, and intelligent drafting tools. Supio doesn’t just save time—it fundamentally improves how legal teams work and win.

About Sapphire Ventures

Sapphire is a global software venture capital firm with $11.3+ billion in AUM and team members across Austin, London, Menlo Park and San Francisco. For over a decade, Sapphire has partnered with visionary management teams and venture funds to back companies of consequence. Since its founding, Sapphire has invested in more than 180 companies globally resulting in more than 30 Public Listings and 50 acquisitions. The firm’s investment strategies — Sapphire Ventures, Sapphire Partners and Sapphire Sport — are focused on scaling companies and venture funds, elevating them to become category leaders. Sapphire’s Portfolio Growth team of experienced operators delivers a strategic blend of value-add services, tools and resources designed to support portfolio company leaders as they scale.

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