Casetext, Part of Thomson Reuters

Technology, Information and InternetCalifornia, United States11-50 Employees

Casetext is a technology company based in San Francisco, California, focused on applying AI to the legal field. Founded in 2013, it develops CoCounsel, an AI assistant that supports tasks such as document review, legal research memos, deposition preparation, and contract analysis, delivering results that lawyers can rely on. 

Its multidisciplinary team includes litigators, reference attorneys, PhD data scientists, and AI engineers. The company serves more than 10,000 law firms, ranging from solo practitioners to more than 40 Am Law 200 firms. In 2026, Casetext announced a collaboration to integrate with Anthropic's Claude, reflecting ongoing efforts to expand interoperability with AI platforms.

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