Layer Health, a health technology company based in Boston, Massachusetts, has secured $21 million in a Series A funding round. The company, which employs artificial intelligence for chart review, announced the funding on March 28, 2025.
The investment round was spearheaded by Define Ventures, with additional contributions from Flare Capital Partners, GV, and MultiCare Capital Partners.
Layer Health plans to allocate the funds to broaden its service offerings, refine its AI models, and strengthen collaborations with healthcare systems and other partners across the United States and internationally.
Under the leadership of CEO David Sontag, Layer Health is focused on leveraging large language models (LLMs) to streamline data abstraction and generate insights from both structured and unstructured Electronic Health Record (EHR) data. The company’s AI platform utilizes sophisticated LLMs trained on extensive patient data to enable healthcare systems to automatically analyze and interpret both structured and unstructured clinical data with accuracy comparable to that of clinicians.
