GT Medical Technologies is a Tempe, Arizona medical device company that developed GammaTile, an FDA-cleared bioresorbable radiation therapy implant for operable brain tumors. Founded by brain tumor specialists from the Barrow Neurological Institute, the company places collagen tiles embedded with Cesium-131 seeds directly into the tumor cavity at the time of surgery, delivering immediate, targeted radiation while sparing healthy tissue. Backed by a $100M Series E led by Viking Global Investors, GT Medical has treated more than 2,000 patients and is pursuing randomized trials to establish GammaTile as a standard of care.
DoseOptics LLC is a Dartmouth spinoff based in Lebanon, New Hampshire that builds BeamSite, the first FDA-cleared camera system to record radiation therapy as it happens by imaging Cherenkov light - the faint glow emitted when a radiotherapy beam passes through tissue. The technology lets radiation oncology teams literally see the beam on the patient in real time, turning an invisible treatment into a video they can review, catching positioning errors and delivery anomalies that were previously undetectable.