Deepgram
Deepgram is a STT / ASR company founded in 2015 and based in San Francisco, United States. It has raised $214M in total funding, most recently a Series C in 2026 at a $1.3B valuation.
Deepgram provides deep-learning-based automatic speech recognition and text-to-speech APIs for real-time transcription and voice synthesis. Raised $72M Series B in 2022; customers include Spotify, NASA, and Twilio; competes head-to-head with AssemblyAI and OpenAI Whisper.
Deepgram's Aura-2 TTS achieves 90ms time-to-first-audio, enabling the wave of conversational phone-based voice agents deployed in 2024.
deepgram.com ↗·STT / ASR·
United States·private 
