Eargo, formerly known as Aria Innovations, is a direct-to-consumer hearing aid company that manufactures an invisible in the canal hearing aid that was actually designed by an ear-nose-throat (ENT) doctor.

Eargo targets people with mild to moderate high-frequency hearing loss who do not have access to or do not want to visit a hearing healthcare professional.

Eargo was founded in 2010 by Florent Michel, his son Raphael Michel, and Daniel Shen. The company is headquartered in San Jose, California with an additional office in Nashville, Tennessee. Eargo began selling their hearing aids in 2015.

Eargo's hearing aids are generally smaller and less visible than traditional in-ear devices and were inspired in their design by a fishing fly. Each unit is also rechargeable.

Eargo hearing aids are certified Class 1 medical devices. Their design is modeled after the standard fishing fly, with a small speaker surrounded by medical-grade silicone fibers (for which the company uses the trademark Flexi Fibers).


Eargo has most recently launched the $2,650 Neo HiFi with the promise of better sound quality, more bandwidth, and more options to personalize the device through the mobile app. Available for Android and iOS, the Eargo mobile app allows users to connect their device over Bluetooth and tweak settings for different environments, whether they’re in a meeting, at a restaurant, watching TV, or even at the theater.


Eargo is backed by NEA, Maveron, Gilde Healthcare, Longitude Capital, Crosslink Capital, Birchmere Ventures, Montage Ventures, Red Sea Ventures and others. The company raised $71M in Series E round on Jul 29, 2020. This brings Eargo's total funding to $206.6M to date.



  • Year founded: 2010
  • Funding Info: $206.6M over 5 Rounds (Latest Funding Type: Series E)
  • Yearly Revenue: NA
  • Employee Size: 51-200
  • Business Valuation: NA
  • City/Town: San Jose
  • State: California
  • Country: United States
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