Supio, an AI platform for plaintiff law firms, announced significant growth in the first half of 2026. The Seattle-based company achieved 17X ARR growth since emerging from stealth less than two years ago and raised $91 million from investors including Sapphire Ventures, Mayfield, and Thomson Reuters Ventures. In May, Supio launched Supio Agent, described as the legal industry's first end-to-end agentic AI platform for plaintiff law. The platform plans, executes, and delivers finished work with attorney oversight, operating across cases, portfolios, and firms. The company more than doubled its customer base in the first six months of 2026 and expanded its partnership with Thomson Reuters, becoming the only AI platform for plaintiff law connected to Thomson Reuters Westlaw Advantage. Supio also made three senior leadership appointments to support its growth.

Supio, an AI platform for plaintiff law, has appointed Melissa Graham as Vice President of Industry. Graham brings 15 years of experience as COO of Richard Harris Law Firm, one of the largest personal injury practices in the western United States. In her new role beginning 27 July 2026, Graham will work across Supio's product, marketing, sales and customer success teams to align product development with law firm operational needs. She is also co-founder of Ascend Consulting and has served on Supio's Customer Advisory Board. The appointment coincides with Supio's launch of Supio Agent, described as the industry's first end-to-end agentic AI platform for plaintiff law. The company has raised funding from Sapphire Ventures and Thomson Reuters Ventures.

Supio, an AI platform for personal injury law firms, has launched an integration with Thomson Reuters' Westlaw Advantage, marking the first phase of a broader collaboration announced in September 2025. The integration allows attorneys to access Thomson Reuters CoCounsel Legal solutions directly from Supio's platform with a single click. The partnership connects the platforms at three key moments: AI-prompted jurisdiction research, one-click deep legal research and draft validation through Westlaw's Litigation Document Analyzer. This enables attorneys to move seamlessly between case intelligence and legal research, reducing the risk of missed facts or jurisdictionally invalid outputs. The collaboration aims to streamline case development workflows, helping firms prepare cases faster whilst maintaining accuracy. Supio has raised funding from Sapphire Ventures and Thomson Reuters Ventures, amongst others.