PolyAI
Enterprise voice AI agents for customer service, built on proprietary voice models.
About
PolyAI builds conversational voice assistants for enterprise contact centers, founded in 2017 as a spin-out from the University of Cambridge's Machine Intelligence Lab. Its agents answer inbound calls, authenticate callers, and handle order management, billing, bookings, and troubleshooting, with callers able to speak naturally, interrupt, and change topics mid-conversation. Unlike most vendors, PolyAI runs its own proprietary voice models rather than stacking on third-party APIs.
The company raised an $86 million Series D in December 2025 at a $750 million valuation, co-led by Georgian, Hedosophia, and Khosla Ventures with NVentures participating, pushing total funding past $200 million. It reports 2,000+ live deployments across 45 languages and 25+ countries with customers including Marriott, FedEx, UniCredit, and Foot Locker. Deployment is vendor-led with custom annual contracts priced per minute, so it targets large operations rather than self-serve teams.
What it can do
- Natural-voice agents that handle interruptions and accents
- Proprietary voice models, no third-party LLM dependency
- Conversational authentication and backend integrations
- 130+ contact-center and vertical system integrations
- Agent Builder for no-code dialog design
Setup
Contact PolyAI sales for a demo and scoping; deployments are vendor-led.
Prerequisites
An enterprise contact-center operation with meaningful call volume.
Use cases
Works with
Trust score — 8/10
Scored 8/10 (verified tier, metrics-v1). Evidence: Verified via vendor site/docs/GitHub and reputable coverage, wave 97; Trending score 84/100 from researcher assessment.
Sources
Every fact above was checked against these sources. Where a claim comes from the provider and couldn't be independently verified, the text says so.