DeepJudge is an AI-powered knowledge search platform for law firms, built by a team including former Google search engineers. Rather than case-law or statute research, it indexes a firm's own scattered institutional knowledge — SharePoint, document management systems, email, and intranet — turning it into governed, natural-language-searchable intelligence for negotiation insight and matter overviews.

The platform includes multi-document chat for querying across many internal files at once and AI workflows for automating recurring knowledge-retrieval tasks. It is explicitly LLM-agnostic, routing queries across multiple frontier models rather than relying on one, and has a partnership with Harvey.

DeepJudge is based in Zurich, Switzerland, and raised a $41M Series A (Coatue, Felicis) at a reported $300M valuation in November 2025. Named enterprise customers include Freshfields, Holland & Knight, Cozen O'Connor, Greenberg Traurig, Gunderson Dettmer, Homburger, and Lenz & Staehelin.

DeepJudge's security page states the product does not train on customer data, and the company reports SOC 2 Type II and ISO 27001 certification. Pricing is not publicly disclosed.