Danbury Proton

Danbury Proton is a Connecticut-based healthcare company developing a proton therapy cancer treatment center in Danbury. The company is focused on delivering outpatient proton beam radiation therapy for patients with cancer, using a Mevion S250i system with Hyperscan and Adaptive Aperture for pencil beam scanning and intensity modulated proton therapy. Danbury Proton received Connecticut Certificate of Need approval via settlement with the Office of Health Strategy in January 2025 to establish a single-room proton therapy center, with design capacity for a second room in the future. The planned facility is positioned as one of the first proton therapy offerings in Connecticut and is intended to improve regional access to advanced radiation oncology care. The business appears to be a project-stage treatment provider rather than a drug-development biotech company.