About Subtle Medical
Subtle Medical is the world leader in applying deep learning to medical image acquisition, enabling faster, safer, and smarter medical imaging across MRI, PET, and CT modalities. Founded at Stanford University by Dr. Greg Zaharchuk, a neuroradiologist and professor, and Dr. Enhao Gong, a deep learning scientist, the company was born from their shared passion for improving the quality and access of medical imaging through artificial intelligence. With over $85 million raised and more than 75 full-time employees, Subtle Medical has deployed its solutions on over 1,300 scanners across multiple countries globally. The company's flagship products include the Subtle-ELITE™ suite for MRI (featuring SubtleHD™, SubtleSYNTH™, and SubtleALIGN™), SubtleHD™ for PET and CT imaging, and AiMIFY™ in partnership with Bracco. These vendor-neutral solutions work on existing scanners, old and new, dramatically improving image quality while reducing scan times and enabling more efficient patient care. Subtle Medical serves radiology practices, imaging centers, health systems, and hospitals worldwide, with customers including RadNet, Precision Imaging Centers, Capital Health, and Middlesex Health. The company holds 11 FDA clearances, has 30+ issued or pending patents, and has published 25+ peer-reviewed papers demonstrating clinical evidence and outcomes. Their mission is to empower physicians and patients with safe and timely medical imaging that leads to improved outcomes and a higher quality of life for all.
Mission & Story
Mission
Our vision is that every human being has the opportunity for a timely diagnosis, high-quality care, and a longer, healthier life. We exist to empower physicians and patients with safe and timely medical imaging that leads to improved outcomes and a higher quality of life for all.
Founding Story
Subtle Medical was born out of Stanford University by founders Greg Zaharchuk, MD, Ph.D., a Neuroradiologist and Professor at Stanford, and Enhao Gong, Ph.D., a deep learning scientist. Enhao was studying under Dr. Zaharchuk during his Ph.D. program, where they discovered their joint passion for improving the quality and access of medical imaging and recognized the power of deep learning to allow them to do so. This ignited the ambition to start Subtle Medical, and it was eventually accepted into the elite Stanford StartX program.
Clinical Focus
Medical conditions and clinical areas addressed by Subtle Medical.
Who It Serves
Milestones & Awards
Recent Milestones
Named to TIME World's Top HealthTech Companies 2025. Semi-finalist for Aunt Minnie's Best New Radiology Software 2025. Named to CB Insights Generative AI 50 (2023) and Digital Health 100 (2023). Deployed on over 1,300 scanners globally. Raised over $85 million in funding. Ohad Arazi joined as CEO in 2026.
Awards & Recognition
TIME World's Top HealthTech Companies 2025, CB Insights Generative AI 50 (2023), CB Insights Digital Health 100 (2023), CB Insights Digital Health 150 (2022), Aunt Minnie's Best New Radiology Software semi-finalist (2025, 2021), Forbes 30-under-30 (founder Enhao Gong)
Key Partnerships
Social & Media
Latest Updates
Subtle Medical Secures $33 Million in Growth Capital Led by Morgan Stanley Expansion Capital and Appoints Industry Veteran Ohad Arazi as CEO
Subtle Medical Enters UK Market to Drive Faster, Higher Quality MRI with SubtleHD(MR)™
Subtle Medical Receives FDA Clearance for SubtleHD™(CT), Expanding AI-Powered Image Enhancement into CT Imaging
Subtle Medical Advances the Future of AI-Powered Imaging at ECR 2026
Subtle Medical to Showcase AI Innovations at NVIDIA GTC 2026
Company Details
- Employees
- 51-200
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