AI and the Future of Law The Am Law 100 Power Rankings: What’s Changing in Big Law with Jae Um
Apr 28, 2026
Jae Um, legal industry analyst and founder of Lumio, breaks down the new Am Law 100 power rankings. She spotlights rising “apex predator” firms and growing market concentration. She outlines different AI investment approaches across firms. She flags shifting client demand, talent mobility, and the quiet risks of client-side disruption.
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How AI Let Me Build The Power Rankings Overnight
- Jae Um automated her entire power rankings workflow with AI, speaking analytics into being and avoiding manual formulas.
- She ran multiple sensitivity tests simultaneously and had AI produce final visualizations exactly to spec at 4 AM.
Apex Predators Are Capturing Market Profits
- Profit concentration is accelerating at the very top of Big Law.
- Six "apex predator" firms now control roughly 24% of the Am Law profit pool, up from 16% a decade ago, reshaping partner roles and firm strategy.
Revenue Per Lawyer Explains Premier League Brackets
- Revenue per lawyer remains the single most predictive metric of firm performance.
- Headcount strategy drives that metric, producing clear cohort differences that justified splitting the Premier League into Apex Predators, Dynasty Brands, and an Elite Eight.