October 22, 2025

Thomson Reuters, a leading provider of business information services, announced today a strategic partnership with DeepJudge, a trailblazing AI startup founded by former Google researchers. This collaboration aims to enhance the search capabilities of Thomson Reuters’ CoCounsel Legal product, focusing on leveraging internal firm knowledge alongside a vast legal database.
DeepJudge is known for its advanced contextual enterprise search technology, which promises to unlock the full potential of a firm’s internal intelligence. Raghu Ramanathan, president of Thomson Reuters' Legal Professionals group, described the technology as a solution to the age-old problem of legal associates wasting hours searching for specific documents like old motions or briefs. With DeepJudge’s technology, searching for and retrieving 'Final_Memo_V8_REAL_FINAL.docx'—which ironically is never the final version—becomes a matter of minutes, not hours.
Legal firms are repositories of vast amounts of institutional knowledge—memos, briefs, and extensive research documents—that often remain underutilized. The partnership seeks to transform this dormant data into a dynamic resource, accessible at the click of a button. Reflecting on the industry's challenges, a senior partner once remarked that "plagiarism is your friend," emphasizing the importance of building on past knowledge to enhance legal practices.
DeepJudge recently earned the number one spot on the SKILLS.law list of recommended legal AI tools, highlighting its critical role in overcoming common industry hurdles. Paulina Grnarova, CEO and co-founder of DeepJudge, stated that the unique assets of a firm—its expertise and derived work product—are what set it apart. The ability to efficiently mine this wealth of information can significantly benefit clients, especially when they are the same clients who funded the initial creation of these comprehensive work materials years prior.
By integrating Thomson Reuters’ trusted external content with DeepJudge’s robust handling of internal materials, law firms can now have a holistic view of insights for any legal query. This integrated approach not only saves time but also enhances the quality of legal research, allowing associates to access both historical firm documents and the latest case laws and secondary sources simultaneously.
As the legal industry continues its race for context and relevance, the partnership between Thomson Reuters and DeepJudge represents a significant leap forward. By marrying external and internal data sources, the alliance promises to streamline legal research processes and provide unprecedented access to legal intelligence, reshaping how legal professionals operate in an increasingly complex world.