| Description |
| Summary |
Developer and business platform for building, testing, deploying, and monitoring production voice AI agents for phone automation.
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| Description |
Retell provides real-time voice AI agent infrastructure with no-code agent setup, phone automation, monitoring, call handling, telephony, and integrations for sales and support operations.
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| Positioning |
#1 AI Voice Agent Platform for Automating Calls
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| Key facts |
| HQ location |
San Francisco, CA, USA
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| Founded |
2023
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| Employee range |
51-200
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| Company type |
Private
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| Pricing model |
usage based
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| Last updated |
Jun 21, 2026
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| Financials |
| Revenue estimate |
Unknown / undisclosed
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| Valuation estimate |
Unknown
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| Investments |
YC-backed; public funding estimates vary (~$5M+ disclosed in third-party sources)
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| Relationships |
| Target customers |
Developers, CX teams, sales/support operations, and businesses automating phone calls
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| Key competitors |
Vapi, Bland AI, Synthflow AI, ElevenLabs, LiveKit, Cartesia, Regal
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| Known customers |
Leading support and sales teams; named customers not consistently public
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| Segments & Industries |
| Segments |
AI Workflows, AI Agents, AI Developer Tools, Knowledge & RAG, AI Quality & Observability, AI Governance & Risk, Call Analysis, Chatbots, Voice AI Agents, STT/TTS Infrastructure, Analytics & BI
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| Industries |
Customer Support / CX, Sales / GTM
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