What You Should Know
- Healthcare AI infrastructure company Bunkerhill Health has closed its Series B funding round led by Khosla Ventures, bringing its total funding to $55M across its Seed, Series A, and Series B rounds.
- The company’s core platform, Carebricks, empowers health systems to build and deploy their own AI agents across clinical, operational, and administrative domains without relying on fragmented vendor-built tools.
- Operating at institutional scale at the University of Texas Medical Branch (UTMB), the platform’s FDA-cleared algorithms have already facilitated life-saving interventions, including a coronary calcium agent that triggered an emergency triple bypass.
- Automated agents have drastically reduced administrative friction, cutting nephrology specialist wait times by more than 50% and addressing urgent incidental lung nodules 80% faster.
- The round features continued participation from premier venture firms including Sequoia Capital, Felicis, Optum Ventures, and Y Combinator, validating agentic AI as foundational infrastructure for healthcare delivery.
The Carebricks Action Engine
The architectural strategy driving Bunkerhill Health moves completely away from passive documentation assistants to enforce an active, highly disciplined system of autonomous clinical reasoning. The company’s core platform, Carebricks, provides health systems with a single foundation to construct and deploy bespoke AI agents across clinical, operational, and administrative domains.
Rather than waiting on external vendors, hospitals can instantly translate their own protocols into agents that continuously monitor vast quantities of unstructured data, route tasks, and take real action. The platform is currently deployed at some of the most respected academic and regional health systems in the country, including Cleveland Clinic, Intermountain Health, and the University of Texas Medical Branch (UTMB).
“The bottleneck in healthcare AI was never the technology, it was getting a health system to actually run it,” stated 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.”
Proving the Return on Autonomy: Institutional Scaling at UTMB
The commercial validation underlying Bunkerhill’s expansion is demonstrated by its massive institutional deployment at UTMB. Under the leadership of Chief AI Officer Dr. Peter McCaffrey, UTMB has successfully deployed more than 20 AI agents live on Carebricks, fundamentally rewiring how the system operates:
- Critical Diagnostic Triage: In its first month of operation, a coronary calcium detection agent running on an FDA-cleared algorithm automatically flagged a patient at imminent risk of a heart attack. The agent seamlessly routed the patient to cardiology, resulting in a life-saving triple bypass.
- Specialist Wait Time Compression: A specialized nephrology triage agent programmatically prioritizes patients by severity, escalating urgent cases and routing standard consultations to telemedicine, cutting average specialist wait times by more than 50%.
- Incidental Findings Automation: A lung nodule tracking agent autonomously identifies incidental findings on CT scans and sequences the appropriate follow-up workflow, addressing urgent cases 80% faster while completely doubling guideline-concordant care metrics.
“Every leading health system has more opportunities to improve patient outcomes than its workforce has capacity to address,” noted Nishith Khandwala, co-founder and CEO of Bunkerhill Health. “We believe AI agents can help them turn more of those ideas into reality.”
