arpa-h
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Ly Tran
Ly Tran is the CEO of Belle.ai (BelleTorus Corporation), a Cambridge, Massachusetts computer vision company whose AI reads smartphone photos to help clinicians evaluate more than 1,600 skin conditions across 60-plus countries. He took the helm in 2021 after co-founding AtHoc, the crisis-communications company he built into the top supplier to the U.S. Defense and Homeland Security markets before BlackBerry acquired it in 2015. A Princeton history graduate with a Harvard MBA, Tran pairs a go-to-market operator's instincts with board and investor roles at companies like Jane Technologies and Cirkul.
Todd Roberts
Todd Roberts is the CEO and co-founder of ATDev (Assistive Technology Development, Inc.), a robotics company building an ecosystem of devices that help people stay independent regardless of physical ability. A mechanical engineer trained at Northeastern and UC Berkeley, where he researched exoskeletons, Roberts met his co-founder Owen Kent through a Craigslist housing ad and discovered they shared both a roof and a biomechanics class. Their company's first product, Reflex, is a sub-five-pound at-home knee rehabilitation robot that pairs guided exercises with remote clinician monitoring. ATDev raised a $3M seed round in October 2025 and is a partner in the $41M ARPA-H RAMMP robotic mobility initiative.