Bunkerhill Health, the agentic AI platform health systems use to turn their best ideas into reality, today announced the close of its Series B funding round,...

Bunkerhill Health raised $55M to put AI agents to work inside hospitals. Bunkerhill Health has raised a $25M Series B led by Khosla Ventures, taking its total to $55M, to put healthcare AI agents to work inside hospitals. July 16, 2026 - 4:13 pm The hard part of medical AI was never the model. It was getting a hospital to actually run it. Bunkerhill Health has raised fresh money to close that gap. The startup closed a $25m Series B led by Khosla Ventures, it told Fortune in an exclusive. That takes its total funding to $55m. Sequoia, Felicis, Optum Ventures, and Y Combinator all joined. The traction is real. Over the past year the company grew revenue 20-fold and signed more than a dozen health systems, the founder said. What Bunkerhill builds. Bunkerhill sells AI agents through a platform called Carebricks. A hospital brings it a problem, from long wait times to missed follow-ups to paperwork, then turns its own idea into an agent that does the work. The platform runs at 15 health systems, including Cleveland Clinic, Mayo Clinic, and Intermountain Health, the company said. It carries nine FDA-cleared clinical algorithms, one that spots silent heart-valve disease, another that flags osteoporosis risk. The | of EU tech A father's heart attack. The idea is personal. Chief executive Nishith Khandwala started the work at Stanford in 2017, then nearly gave up when hospitals waved him off. In 2020, his father had a heart attack. A cardiologist later told the family an old scan had already shown the risk. "I think we could have caught this earlier," Khandwala recalled him saying. He co-founded Bunkerhill with David Eng, and the pitch has not changed since. "Medicine has advanced faster than our healthcare system's ability to operationalize it," Khandwala said. "Why should a hospital need to work with 100 different companies to solve 100 different problems?" The results, and the caveats. At the University of Texas Medical Branch, 22 agents are now live. In their first month, one that reads coronary scans flagged a patient at imminent risk. Doctors sent him to cardiology for a triple bypass, and his team credits it with saving his life. Other agents cut nephrology wait times by more than half, and chased up lung findings 80% faster. UTMB's AI chief Peter McCaffrey calls the platform "a shared brain" for the health system. "We don't need superintelligence to solve our biggest problems," he said. "We need average intelligence." The field carries real risks. Accuracy and privacy questions dog it, and Mayo Clinic now faces a lawsuit from a former research director over its AI oversight. McCaffrey says the doctor-patient bond must stay "sacrosanct." A crowded, well-funded field. Money is pouring into healthcare AI. Bunkerhill lands in the same wave as Neko Health and a run of medical-AI raises. Its backer knows the terrain: Vinod Khosla was an early OpenAI investor and has funded health startups for decades. "The bottleneck in healthcare AI was never the technology, it was getting a health system to actually run it," Khosla said. "Bunkerhill closed that gap." Sequoia's Alfred Lin, who led the seed round in 2023, is relaxed about the crowd. "I much prefer having 1,000 flowers bloom," he said, "and the best ones will become durable over time."

Bunkerhill Health raises $55 million to help health systems turn their best ideas into reality. SAN FRANCISCO-(BUSINESS WIRE)-Bunkerhill Health, the agentic AI platform health systems use to turn their best ideas into reality, today announced the close of its Series B funding round, led by Khosla Ventures, with continued participation from Sequoia Capital, Felicis, Optum Ventures, and Y Combinator. The Series B brings Bunkerhill Health's total funding to date, including its Seed and Series A rounds, to $55 million, reflecting growing investor conviction that agentic AI is foundational infrastructure for healthcare delivery. According to the Centers for Medicare & Medicaid Services, U.S. healthcare spending reached $5.3 trillion in 2024, while labor shortages continue to challenge providers nationwide. The gap between what health systems set out to do for their patients and what their teams have the capacity to accomplish has become one of the defining challenges in healthcare today. For decades, healthcare organizations have invested heavily in systems that document care to lessen the burden on providers. The next chapter is technology that helps them act on their best ideas for patients. Healthcare leaders see the emergence of agentic AI as an inflection point. "Medicine has advanced faster than our healthcare system's ability to operationalize it," said Nishith Khandwala, co-founder and chief executive officer of Bunkerhill Health. "Every leading health system has more opportunities to improve patient outcomes than its workforce has capacity to address. We believe AI agents can help them turn more of those ideas into reality." Bunkerhill's platform, Carebricks, lets hospitals and health systems turn their own ideas into AI agents that work across clinical, operational, and administrative domains, from reviewing cardiology imaging for early signs of heart disease and identifying patients who need follow-up care to navigating prior authorizations and automating registry management. The platform is in place today at some of the most respected health systems in the country, including Cleveland Clinic, the University of Texas Medical Branch (UTMB), and Intermountain Health. "The bottleneck in healthcare AI was never the technology, it was getting a health system to actually 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." At UTMB, Carebricks is being used at institutional scale. AI agents built on the platform are at work across the breadth of how UTMB operates, supporting clinicians, operations teams, and administrative staff alike. In its first month, a coronary calcium detection agent running on an FDA-cleared algorithm flagged a patient at imminent risk of a heart attack. It routed him to cardiology, where the risk was confirmed and a triple bypass was performed, an early detection his care team credits with saving his life. The gains extend across the system. A nephrology triage agent now prioritizes patients by severity, escalating urgent cases and routing others to telemedicine, cutting average specialist wait times by more than 50 percent. A lung nodule agent identifies incidental findings on CT scans and carries each through to the right follow-up, addressing urgent cases 80 percent faster and doubling guideline-concordant follow-up, all with a drastic reduction in manual coordinator work. "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." Bunkerhill Health will use the funding to expand the Carebricks platform, helping health systems turn a wider range of their own clinical and operational ideas into production-grade AI agents while advancing the governance, monitoring, and safeguards that health systems require to deploy AI at scale. About Bunkerhill Health Bunkerhill Health builds Carebricks, an agentic AI platform that gives health systems a single foundation to deploy AI agents across the full scope of how they operate. The company partners with some of the most respected health systems in the country, including Cleveland Clinic, the University of Texas Medical Branch, and Intermountain Health, empowering them to turn their ideas into reality with unmatched speed and flexibility. To learn more, visit bunkerhillhealth.com.