California-based Bunkerhill Health Raises $55M in Total Funding

The round also saw participation from Sequoia Capital, Felicis, Optum Ventures, and Y Combinator.

The new funding brings the companys total funding to $55 million, following its earlier Seed and Series A rounds.

The company will use the funding to expand its operations and continue developing its products and technology.

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Bunkerhill's Carebricks platform helps hospitals and health systems build AI agents to automate clinical, operational, and administrative tasks. These AI tools can review cardiology images for early signs of heart disease, identify patients who need follow-up care, manage prior authorizations, and automate registry management.

The platform is already being used by leading healthcare organizations, including Cleveland Clinic, the University of Texas Medical Branch (UTMB), and Intermountain Health.

At UTMB, Carebricks is being used across the organization to support doctors, operations teams, and administrative staff. In its first month, an AI agent that detects coronary calcium identified a patient at high risk of a heart attack. The patient was quickly referred to a cardiologist, where the diagnosis was confirmed, and he underwent a triple bypass surgery that his care team believes saved his life.

The platform is also improving care in other areas. An AI agent for nephrology helps prioritize patients based on the severity of their condition, reducing specialist wait times by more than 50%. Another AI agent detects lung nodules from CT scans, speeds up follow-up care for urgent cases by 80%, doubles the number of patients receiving recommended follow-up, and significantly reduces manual work for care coordinators.

“We have more than 20 AI agents live on Carebricks at UTMB, working across clinical care, operations, and administration,” said Dr. Peter McCaffrey, Chief AI Officer at UTMB. “We’ve already seen tremendous impact on patient care, and we’re only at the beginning of what becomes possible when a health system can operate with agentic AI at this scale.”

“The bottleneck in healthcare AI was never the technology, it was getting a health system actually to run it,” said Vinod Khosla, founder of Khosla Ventures. “Bunkerhill closed that gap. They made it much, much easier to adopt AI and already have traction inside critical health systems that would take most companies years to earn. That is the unlock the whole industry has been waiting for.”

About Bunkerhill Health

Founded in 2021 by Nishith Khandwala and David Eng, Bunkerhill Health develops Carebricks, an AI platform that helps health systems build and deploy AI agents for a wide range of clinical, operational and administrative tasks. The company works with leading healthcare organizations, including Cleveland Clinic, the University of Texas Medical Branch and Intermountain Health, helping them quickly turn their ideas into AI-powered solutions.

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