Twin1 AI raises $20M to put an AI twin behind every knowledge worker

Twin1 AI secured $20 million in seed funding to develop artificial intelligence-powered digital twins that replicate a professional's expertise within their organization. Based in San Mateo, California, the startup pairs each employee with a persistent model of their knowledge, judgment, and working context, enabling the model to answer questions and act on behalf of the individual.

Twin1 was established in 2025 by Lewis Liu, Tom Cahn, Huiting Liu, and Jonathan Budd, with three of the four founders previously working at Eigen Technologies Ltd., which was acquired by SirionLabs Inc. in 2024 for over $80 million. Liu, Twin1's CEO, co-founded Eigen and led the company through the sale.

The AI twin utilizes a user's email, meeting records, documents, and connected workplace systems, operating within popular platforms such as Slack, Microsoft Teams, Outlook, Gmail, Google Drive, and SharePoint. Users control the twin's access to these sources and determine which colleagues can query it. To ensure compliance, Twin1 incorporates six layers of rule-based and AI-based controls over both peer-to-peer and peer-to-AI exchanges, allowing the twin to surface information only when the requester has the necessary permissions.

Above the individual twins lies the Twin Network, a coordination layer that enables twins to locate the appropriate colleague, gather permission-aware knowledge, and facilitate work between teams. The company also provides an enterprise Model Context Protocol server, enabling other agents and enterprise applications to access governed context from a single twin or the entire network.

Twin1 has been collaborating with customers in legal, financial services, and energy sectors for over a year, including Linklaters LLP, Orrick, Herrington & Sutcliffe LLP, Dechert LLP, Customers Bank, and Aegis Energy. These customers report the platform handles 30% to 50% of the communications work their knowledge workers would otherwise perform. Liu emphasized that each enterprise AI averages out individual employees' knowledge, whereas Twin1 maintains the expertise attached to the person possessing it.

Orrick Chief Innovation Officer Wendy Butler Curtis highlighted that the platform enables the firm to mine its collective data, describing it as "one of the most exciting developments in the practice today." Orrick also acquired a strategic stake in the round. Notable investors in the seed funding include Bessemer Venture Partners, Tribeca Venture Partners, Aramco Ventures, EJF Ventures, Tin Alley Ventures, AGI House Ventures, Neo, F-Prime Capital, Btech Consortium, Antiportfolio Ventures, Lakestar, and Notion Capital, along with individual angels such as Roy Reznik, Hans Tung, and Haakon Overli.

Several of these investors previously supported Eigen. The funding will be allocated towards hiring in San Mateo and London, sales and marketing efforts, and further platform development. Liu stated that Twin1 is currently working with more than 400 prospects and plans to launch a self-service version for smaller firms and individual professionals in the future.