Vapi
Vapi is a Voice Agent Infrastructure company founded in 2023 and based in San Francisco, United States. It has raised $70M in total funding, most recently a Series B in 2026 at a $500M valuation.
Vapi provides a developer platform for building and deploying voice AI agents with sub-second latency and flexible integrations. Raised $20M Series A led by Bessemer in mid-2024; used by startups and enterprises to orchestrate STT/TTS/LLM stacks.
Vapi reached $500M valuation in 2024 as the developer-favorite infrastructure layer for voice agents, powering thousands of deployed bots.
vapi.ai ↗·Voice Agent Infrastructure·
United States·private 
