tempe-arizona
(6)
The Agency That Asked People to Do Something
Off Madison Ave built an Arizona agency around a deceptively hard question: what do you need a person to do next? Twenty-seven years, five acquisitions and one AI travel planner later, the question still runs the place.
Two Stanford Classmates Bet That Americans Drowning in Debt Would Rather Be Helped Than Hustled
Two Stanford classmates spent two decades building a debt company most people never heard of. Then they renamed it Achieve, wired it to AI, and bet 2 million struggling households on one idea: do the customer's math first.
GT Medical Technologies, Inc.
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.
Per Langoe
Per Langoe is the CEO of GT Medical Technologies, the Tempe, Arizona company behind GammaTile, an FDA-cleared radiation therapy tile that gets sewn into the brain the same moment a tumor is removed. He arrived in February 2024 after co-founding and selling Palette Life Sciences to Teleflex for $600 million, bringing more than two decades in radiation oncology commercialization from Pharmacia, Q-Med, Galderma and Nestle Skin Health.
Solestial, Inc.
Solestial is a Tempe, Arizona space-solar company building ultrathin, radiation-hardened silicon photovoltaic modules for satellites and spacecraft. Spun out of Arizona State University research, the company makes flexible space-grade solar power modules that self-cure radiation damage at operating temperatures and targets the megawatt-class power demand of large satellite constellations and on-orbit infrastructure.
Margo Naray
Margo de Naray is the Chief Executive Officer of Solestial, Inc., a Tempe, Arizona-based space solar power startup pioneering radiation-hardened, ultrathin silicon solar cells that self-cure radiation damage at low operating temperatures. Appointed CEO in May 2025 following the company's $17M Series A funding round, she brings 20 years of cross-industry leadership spanning aerospace (Astra Space), agribusiness (Cargill), and semiconductor manufacturing (Intel). Solestial's technology promises to slash the cost of spacecraft solar arrays by roughly 90% compared to incumbent III-V multijunction technology, using automated manufacturing and widely available silicon to make reliable space-grade solar power accessible at scale.