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The company was founded in 2005 as Melodis Corp by Keyvan Mohajer, Majid Emami, and James Hom. The company initially focused on music recognition as a competitor to the Shazam app.
In 2009, the company's music discovery app Midomi was rebranded as SoundHound but was still available as a web version on midomi.com until February 2025. The app grew from 2 million users in January 2010 to 100 million users in September 2012.
In 2010, the company formally rebranded from Melodis Corp. to SoundHound.
In 2015, Hyundai Motors began offering the SoundHound music recognition app in the infotainment systems of some Hyundai and Kia models.
In December 2015, SoundHound launched Houndify, a voice interface for other products and services.
In April 2022, coinciding with its listing on NASDAQ via a SPAC merger, the company rebranded from SoundHound to SoundHound AI.
In December 2023, SoundHound acquired SYNQ3 Restaurant Solutions, a provider of voice AI for restaurants, for $25 million.
In 2023–2024, SoundHound began providing voice AI phone ordering technology to various restaurant chains, starting with Jersey Mike's Subs and White Castle. The company's customer base also includes several other chain restaurants. In October 2024, SoundHound claimed their phone ordering technology had processed over 100 million interactions with restaurant customers.
In June 2024, SoundHound acquired Allset, a restaurant ordering marketplace founded out of Ukraine.
In August 2024, SoundHound acquired Amelia AI for $85 million.
In September 2025, it was announced that SoundHound had completed its acquisition of Interactions LLC, a company which also developed AI for the customer service market.