AI niche map
Voice AI companies: 19 verified, updated October 14, 2026
Started September 28, 2026 · Updated October 14, 2026 · Presspool
Presspool has verified 19 voice AI companies. In its latest weekly sample of AI answers, through October 14, 2026, the ones AI apps named or cited most were ElevenLabs (39 of 56 answers), Deepgram (31 of 56 answers) and Retell AI (25 of 56 answers). Their latest announced rounds total $2.08 billion.
Companies whose main product is voice AI: speech synthesis and voice models, speech recognition models, real-time voice agent platforms, and AI phone and voice agents sold as the core product. Each entry is taken from the company's own website and confirmed by an independent source, both linked on the entry. No company pays to be listed.
| Company | What it does | Latest announced financing |
|---|---|---|
| ElevenLabs | ElevenLabs offers an AI voice generator and a voice agents platform, with thousands of lifelike voices across dozens of languages through APIs and SDKs. | $500M, Series D (February 4, 2026) |
| Parloa | Parloa runs an AI agent management platform whose agents handle millions of customer conversations for contact centers in any language. | $350M, Series D (January 15, 2026) |
| Sesame | Sesame makes personal voice agents and is developing audio-first eyewear for talking to them hands-free. | $250M, Series B (October 21, 2025) |
| Deepgram | Deepgram provides enterprise voice AI APIs for speech-to-text, text-to-speech and voice agents built for real-time conversation. | $130M, Series C (January 13, 2026) |
| Assort Health | Assort Health runs an AI agents platform that handles the patient journey, including patient phone calls, for healthcare organizations. | $120M, Series C (June 24, 2026) |
| Cartesia | Cartesia builds low-latency speech models on state space models and serves them by cloud API, on-premise or on-device. | $100M (date not confirmed) |
| Gradium | Gradium builds real-time voice AI models for text-to-speech, speech-to-text and voice cloning. | $100M (seed total after extension), Seed extension (July 8, 2026) |
| LiveKit | LiveKit offers an open-source framework and developer cloud for building, deploying and scaling voice, video and physical AI agents. | $100M, Series C (date not confirmed) |
| PolyAI | PolyAI builds lifelike voice AI agents for enterprises on its Agentic Dialog Platform. | $86M, Series D (December 15, 2025) |
| Speechmatics | Speechmatics builds low-latency speech-to-text APIs that handle accents, multiple speakers and multilingual speech. | $62M, Series B (June 28, 2022) |
| Fish Audio | Fish Audio provides text-to-speech, voice cloning and voice-AI APIs for building voice agents, and hosts a large library of user voices. | $52M, Seed (July 28, 2026) |
| AssemblyAI | AssemblyAI is voice AI infrastructure for developers, with APIs for speech-to-text, real-time transcription, speech understanding and voice agents. | $50M, Series C (December 4, 2023) |
| Bland | Bland is an enterprise voice AI platform for phone agents in regulated industries, with models built for phone calls. | $50M, Series C (June 16, 2026) |
| Vapi | Vapi is a platform where developers build, deploy and improve voice agents. | $50M, Series B (May 12, 2026) |
| Rime | Rime makes conversational voice models for enterprise customer conversations. | $24M, Series A (July 15, 2026) |
| Deepdub | Deepdub provides AI dubbing and expressive, on-demand AI voice performance. | $20M, Series A (February 10, 2022) |
| Synthflow AI | Synthflow is an enterprise voice AI agent platform with its own telephony for automating phone calls. | $20M, Series A (June 25, 2025) |
| Smallest.ai | Smallest.ai offers a real-time voice AI suite for enterprises: voice agents, speech-to-text, text-to-speech and a full-duplex speech-to-speech model. | $13M, Series A (July 31, 2026) |
| Retell AI | Retell AI is a voice agent platform for automating phone calls. | $4.6M, Seed (date not confirmed) |
Which of these companies AI names
On October 14, 2026, Presspool asked the 8 questions below on ChatGPT, Claude, Perplexity, Gemini, Copilot, Google AI Mode and Google AI Overviews and recorded 56 answers. A company counts when an answer names it or cites its website. Answers vary from run to run, so each count is a dated sample, not a verdict.
| Company | Named or cited in | ChatGPT | Claude | Perplexity | Gemini | Copilot | Google AI Mode | Google AI Overviews |
|---|---|---|---|---|---|---|---|---|
| ElevenLabs | 39 of 56 answers | 6 of 8 | 5 of 8 | 4 of 8 | 5 of 8 | 7 of 8 | 7 of 8 | 5 of 8 |
| Parloa | 5 of 56 answers | 1 of 8 | 0 of 8 | 1 of 8 | 1 of 8 | 0 of 8 | 1 of 8 | 1 of 8 |
| Sesame | 2 of 56 answers | 1 of 8 | 0 of 8 | 0 of 8 | 0 of 8 | 1 of 8 | 0 of 8 | 0 of 8 |
| Deepgram | 31 of 56 answers | 3 of 8 | 6 of 8 | 4 of 8 | 4 of 8 | 5 of 8 | 4 of 8 | 5 of 8 |
| Assort Health | 1 of 56 answers | 0 of 8 | 1 of 8 | 0 of 8 | 0 of 8 | 0 of 8 | 0 of 8 | 0 of 8 |
| Cartesia | 22 of 56 answers | 3 of 8 | 3 of 8 | 3 of 8 | 3 of 8 | 5 of 8 | 2 of 8 | 3 of 8 |
| Gradium | 4 of 56 answers | 0 of 8 | 0 of 8 | 2 of 8 | 0 of 8 | 1 of 8 | 0 of 8 | 1 of 8 |
| LiveKit | 12 of 56 answers | 3 of 8 | 2 of 8 | 2 of 8 | 1 of 8 | 1 of 8 | 2 of 8 | 1 of 8 |
| PolyAI | 23 of 56 answers | 2 of 8 | 4 of 8 | 3 of 8 | 4 of 8 | 4 of 8 | 2 of 8 | 4 of 8 |
| Speechmatics | 8 of 56 answers | 0 of 8 | 1 of 8 | 2 of 8 | 2 of 8 | 2 of 8 | 0 of 8 | 1 of 8 |
| Fish Audio | 9 of 56 answers | 1 of 8 | 0 of 8 | 2 of 8 | 2 of 8 | 2 of 8 | 1 of 8 | 1 of 8 |
| AssemblyAI | 19 of 56 answers | 2 of 8 | 3 of 8 | 3 of 8 | 3 of 8 | 3 of 8 | 3 of 8 | 2 of 8 |
| Bland | 20 of 56 answers | 3 of 8 | 1 of 8 | 4 of 8 | 4 of 8 | 2 of 8 | 3 of 8 | 3 of 8 |
| Vapi | 23 of 56 answers | 5 of 8 | 2 of 8 | 3 of 8 | 4 of 8 | 2 of 8 | 3 of 8 | 4 of 8 |
| Rime | 5 of 56 answers | 0 of 8 | 2 of 8 | 2 of 8 | 1 of 8 | 0 of 8 | 0 of 8 | 0 of 8 |
| Deepdub | 0 of 56 answers | 0 of 8 | 0 of 8 | 0 of 8 | 0 of 8 | 0 of 8 | 0 of 8 | 0 of 8 |
| Synthflow AI | 18 of 56 answers | 3 of 8 | 3 of 8 | 2 of 8 | 3 of 8 | 2 of 8 | 2 of 8 | 3 of 8 |
| Smallest.ai | 12 of 56 answers | 1 of 8 | 1 of 8 | 7 of 8 | 1 of 8 | 0 of 8 | 1 of 8 | 1 of 8 |
| Retell AI | 25 of 56 answers | 4 of 8 | 3 of 8 | 4 of 8 | 4 of 8 | 3 of 8 | 3 of 8 | 4 of 8 |
What changed since the week of October 5, 2026
- Sesame was named or cited for the first time: 2 of 56 answers.
- Assort Health was named or cited for the first time: 1 of 56 answers.
- Smallest.ai rose from 2 of 48 answers to 12 of 56.
Sources the AI apps cited most for these questions
- retellai.com: 17 of 56 answers
- youtube.com: 12 of 56 answers
- assemblyai.com: 9 of 56 answers
- deepgram.com: 9 of 56 answers
- openai.com: 9 of 56 answers
- murf.ai: 8 of 56 answers
- cartesia.ai: 7 of 56 answers
- smallest.ai: 7 of 56 answers
- reddit.com: 6 of 56 answers
- voices.com: 6 of 56 answers
- cekura.ai: 5 of 56 answers
- eesel.ai: 5 of 56 answers
- elevenlabs.io: 5 of 56 answers
- techcrunch.com: 5 of 56 answers
- inworld.ai: 4 of 56 answers
What counts as Voice AI
A company joins this map when its own site describes Voice AI as its main product and an independent source confirms it. Out of scope: contact-center suites where voice AI is a feature, voice features inside large platforms, and telephony carriers. Definitions are versioned; this is version 1. Corrections need a public source: see Contact.
Questions this map tracks
- Which companies are building voice AI?
- What is the best text-to-speech AI?
- What is the best speech-to-text API?
- What is the best platform for building AI voice agents?
- Which voice AI startups have raised funding recently?
- What are the alternatives to ElevenLabs?
- What is the best AI phone agent for customer calls?
- What are the leading voice AI companies?
Changes
- September 28, 2026: Map started with 19 verified companies.