Founded in New York City and led by co-founder and CEO Zach Rosen, Brellium is an AI-powered clinical compliance and revenue integrity platform that reviews 100% of patient charts before claims go out, catching documentation and coding errors before they become clawbacks and surfacing revenue providers have earned but not billed. Its proprietary CortexLM system checks every note against payor policies, regulatory requirements and clinical standards, giving providers an audit-ready record across all 50 states. More than 200,000 providers, including teams at Headspace, Rula, Gentiva and Maxim Healthcare, use the platform, and the company is backed by First Round Capital, Left Lane Capital and Menlo Ventures.
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Oct 13, 2026
Latest raise
Funding activity · 1 round
Oct 13, 2026
$23M
Series B
Led by First Round Capital
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