Deepgram

Deepgram provides speech recognition, speech synthesis, audio intelligence and voice-agent infrastructure for developers, product teams and enterprises. Its Voice Agent API combines speech-to-text, text-to-speech and language-model orchestration, letting teams build conversational applications through one interface. Users can process live or recorded audio, extract summaries and sentiment, and deploy through cloud or self-hosted APIs. Its Flux speech platform handles conversational turn-taking and interruptions. Deepgram also acquired OfOne in 2026, whose restaurant voice technology now anchors Deepgram for Restaurants.

Founded in 2015 by Scott Stephenson, Adam Sypniewski and Noah Shutty, former University of Michigan physicists, Deepgram grew from an effort to search audio captured by wearable recorders using deep learning. Stephenson remains CEO, while Sypniewski leads research and engineering as CTO. Its engineering work extends beyond transcription to deciding when an agent should respond: researchers evaluate Flux on complete conversations, using sequence alignment of transcripts and turn-boundary tokens to measure turn-detection accuracy and latency while accounting for dropped turns.

In August 2026, the company reported more than 200,000 developers and 1,400 organizations using its platform, with cumulative processing exceeding 50,000 years of audio and one trillion transcribed words. Deepgram raised $130 million in Series C funding led by AVP in January 2026 at a $1.3 billion valuation.