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Select companies in the slots below to reveal a useful side-by-side view. You can compare up to four companies and change any selection later.
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| Description | ||||
| Summary | Developer and business platform for building, testing, deploying, and monitoring production voice AI agents for phone automation. | |||
| 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. | |||
| Positioning | #1 AI Voice Agent Platform for Automating Calls | |||
| Key facts | ||||
| HQ location | San Francisco, CA, USA | |||
| Founded | 2023 | |||
| Employee range | 51-200 | |||
| Company type | Private | |||
| Pricing model | usage based | |||
| Last updated | Jun 21, 2026 | |||
| Financials | ||||
| Revenue estimate | Unknown / undisclosed | |||
| Valuation estimate | Unknown | |||
| Investments | YC-backed; public funding estimates vary (~$5M+ disclosed in third-party sources) | |||
| Relationships | ||||
| Target customers | Developers, CX teams, sales/support operations, and businesses automating phone calls | |||
| Key competitors | Vapi, Bland AI, Synthflow AI, ElevenLabs, LiveKit, Cartesia, Regal | |||
| Known customers | Leading support and sales teams; named customers not consistently public | |||
| 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 | |||
| Industries | Customer Support / CX, Sales / GTM | |||
