In a legal industry still dominated by legacy research tools and time-intensive workflows, McKinney-based Callidus Legal AI says that AI can reduce overhead and reshape how litigation gets done. The company, founded in 2023 by former M&A and restructuring attorney Justin McCallon, just raised $10 million in a funding round led by Cervin Ventures, with participation from AI Fund, Myriad Venture Partners, and law firm Foley & Lardner LLP. The round brings Callidus’ total funding to $13 million.
Callidus’ core offering is an AI-native litigation platform built around a proprietary case law database containing over 10 million U.S. legal cases. Unlike conventional systems that rely on keyword search or generic chatbot functionality, Callidus uses agentic AI models to synthesize precedents, structure arguments, and draft litigation documents with granular detail and legal context. The platform allows lawyers to generate outlines, research memos, and court-ready briefs while staying fully in control of the process.
McCallon, who previously co-led legal transformation efforts at AT&T and helped launch a Gen AI product at DIRECTV, said the idea for Callidus emerged from his frustration with the slow pace of legal work and the limitations of existing tools. “AI has advanced to the point where substantially automating legal work is no longer a question of possibility; it's a series of tough but solvable engineering challenges,” he said. “We're building the most advanced and interactive AI platform for litigators.”
