OIDO makes over-the-counter hearing aids that bring personalized hearing care to the home through a smartphone-guided setup. Its HearOne and HearDuo devices use app-based calibration, speech processing and adaptive noise control for people with mild to moderate hearing loss, without requiring an audiologist visit. The company’s medical direction comes from Dr. Phil Anderson, an ENT surgeon with more than 25 years of experience, including service as Chief of ENT Surgery for the U.S. Army in Korea.
BeltoneFounded in Chicago in 1940, Beltone develops hearing aids and provides personalized hearing care through a nationwide network of local clinics. Its hearing care professionals guide patients from screening and fitting through ongoing support, with the BelCare program extending lifetime care across more than 1,500 participating centers. Beltone also develops hearing technology that connects with smartphones and other everyday devices.CATONSVILLE, MD
YouTuneHearingFounded by audiologist Dr. Jeremiah Smith, YouTuneHearing makes hearing-protection earplugs and earphones in the USA that let users adjust or switch sound reduction without removing the devices. Its system spans everyday noise, concerts and impulse sounds, combining hearing protection with music listening and communication. The company has delivered its initial devices in the United States and 57 countries and holds a Department of Defense contract for advanced hearing-protection technology.OAKWOOD, OH
Quantum Senses, LLCFounded in 2021 by aerospace engineer Justin Lee, Quantum Senses grew from his attempt to help a Vietnam veteran hear television at home without disturbing his wife. The company now develops Earcoustic as an affordable hearing aid complement for people with mild to moderate hearing loss, with its recyclable, non-electronic design reflecting Lee’s interest in accessible and sustainable technology. University of Maryland Hearing Technology Lab testing has supported the product’s development.UPPER MARLBORO, MD
Unplugs Hearing, IncFounded by Lunchbox creators Tom Worcester and audiology specialists Dr. Natan Bauman and Ralph Campagna, Unplugs Hearing makes audiologist-designed earplugs that switch between sound reduction and natural conversation with a mechanical click. The company’s personal approach comes from Worcester, who has worn hearing aids since age four, while its patent-protected design draws on more than 70 years of combined audiology expertise.