Mevion Medical Systems, Inc. is a radiation therapy company dedicated to advancing the treatment of cancer. As the pioneering developer of modern proton therapy systems, Mevion provides innovative, safe, and effective solutions by transforming advances in medical technology and science into practical clinical realities.

Mevion’s flagship product, the MEVION S250 Proton Therapy System, is designed to preserve all of the treatment benefits of traditional proton treatment systems while removing the obstacles of size, cost and complexity. Realizing this vision, Mevion has forever changed the economics and accessibility of proton therapy and the face of cancer treatment worldwide.

Founded in 2004, Mevion is a closely held private company headquartered in the Boston metropolitan area with international offices in the United Kingdom and Japan.

The MEVION S250 Proton Therapy System is USFDA 510(k) cleared and complies with MDD/CE requirements.