Twin1 AI, a platform that “gives every professional an AI-powered digital twin” and is already working with a number of large law firms has come out of stealth with a $20m seed funding round. Twin A1 was founded in 2025 by Dr. Lewis Z. Liu; Tom Cahn, Huiting Liu and Dr Jonathan Budd. Liu is the former CEO and co-founder of Eigen Technologies and Cahn and Liu both previously worked for Eigen, which was acquired by Sirion in 2024.
The funding will be used to expand the company’s teams in San Mateo, California, and London, UK, invest in go-to-market efforts, and further develop its core technology.
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Twin1 AI says it is building the coordination and trust layer for enterprise AI, pairing every professional with an AI-powered digital twin that preserves their judgment, relationships and context, and scales their expertise across the organization.
The user controls what data the Twin accesses and how that context is shared, and digital twins operate where professionals work across tools such as Slack, Microsoft Teams, Outlook, Gmail, Google Drive, and SharePoint.
Customers using Twin1 include law firms such as Linklaters, Orrick, and Dechert, financial institutions such as Customers Bank, as well as energy companies such as Aegis Energy.
“Twin1 provides the opportunity to mine our collective data, and it is one of the most exciting developments in the practice today – because of the way it will enhance our client advice and make practicing more interesting,” said Wendy Butler Curtis, chief innovation officer at Orrick, Herrington & Sutcliffe LLP.
Twin1’s seed funding round also included participation from EJF Ventures, Tin Alley Ventures, AGI House Ventures, Neo, F-Prime, Btech Consortium, Antiportfolio Ventures, Lakestar, Notion Capital, Insiders, strategic investment from Orrick, as well as angel investors: Dawn Capital Co-Founder Haakon Overli, Wiz Co-Founder Roy Reznick, Notable Capital Managing Partner Hans Tung, former McKinsey Senior Partner Kevin Buehler, prominent climate tech investor Robert Trezona, and the former Global Co-head of Macquarie Capital Dan Wong. The round included participation from several investors who backed Eigen Technologies, the founders’ previous venture, reflecting continued confidence in the team’s ability to build enterprise AI companies.