Sivantos, Inc. (formerly Siemens Hearing Instruments) has more than 130 years of experience helping people with hearing loss. Sivantos is the largest, most innovative manufacturer of hearing aids & accessories in the world. In fact, one out of every four hearing aids being used worldwide is a Siemens hearing aid. Our Siemens hearing products help hearing care professionals deliver personalized hearing solutions to their patients—enabling them to lead richer, fuller lives.