# PolyAI

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/polyai

- Industry: Software
- Headquarters: San Mateo, US
- Website: www.poly.ai/
- Total disclosed funding: $190M
- Latest round: Series D (Dec 3, 2025)
- Investors on record: 15

## About

Established in 2017 and based in California, US, PolyAI Limited, originated from the Machine Intelligence Lab at the University of Cambridge, and now operates as a provider of an AI-based platform that helps businesses automate customer support. In December 2025, PolyAI Limited raised USD 86 million in series D funding co-led by Georgian, Hedosophia, and Khosla Ventures, with participation from NVentures, Sands Capital Alternative, Zendesk Ventures, Point72, British Business Bank, Citi Ventures, and Squarepoint.

The company specializes in conversational artificial intelligence (AI) designed to enhance customer service through voice technology. PolyAI's advanced voice AI solutions seamlessly integrate into existing contact center operations. Their platform enables businesses to handle over 50% of calls autonomously, providing natural, conversational experiences across ten languages. The platform also enables developers to create voice-enabled assistants and produce human-like interactions. Key offerings include automated account management, billing, and reservation services, aimed at reducing wait times, improving customer satisfaction, and increasing operational efficiency. The company’s technology is deployed in various industries, including healthcare, hospitality, and financial services.

## Funding rounds

- Series D, Dec 3, 2025, $86M — Khosla Ventures, Georgian, Citi Ventures, Squarepoint, Sands Capital Alternatives, Point72 Asset Management, Nventures, Hedosophia, Zendesk Ventures, British Business Bank
- Series C, Apr 22, 2024, $50M — Khosla Ventures, Georgian, Zendesk, Inc., Passion Capital, Sands Capital Alternatives, Point72 Asset Management, Nventures, Hedosophia
- Series B, Jun 9, 2022, $39M — Amadeus Capital Partners, Khosla Ventures, Georgian, Point72 Asset Management, Twilio Ventures
- Series A, Jan 16, 2019, $12M — Amadeus Capital Partners, Passion Capital, Entrepreneur First, Sands Capital Alternatives, Point72 Asset Management
- Seed, Jan 30, 2018, $2.5M — Amadeus Capital Partners, Passion Capital

## Investors

- Amadeus Capital Partners (https://capitalatlas.ai/funds/amadeus-capital-partners) — Seed, Series A, Series B
- Passion Capital — Seed, Series A, Series C
- Entrepreneur First (https://capitalatlas.ai/funds/entrepreneur-first) — Series A
- Sands Capital Alternatives (https://capitalatlas.ai/funds/sands-capital-alternatives) — Series A, Series C, Series D
- Point72 Asset Management — Series A, Series B, Series C, Series D
- Khosla Ventures (https://capitalatlas.ai/funds/khosla-ventures) — Series B, Series C, Series D
- Georgian — Series B, Series C, Series D
- Twilio Ventures (https://capitalatlas.ai/funds/twilio-ventures) — Series B
- Zendesk, Inc. — Series C
- Nventures — Series C, Series D
- Hedosophia (https://capitalatlas.ai/funds/hedosophia) — Series C, Series D
- Citi Ventures (https://capitalatlas.ai/funds/citi-ventures) — Series D
- Squarepoint — Series D
- Zendesk Ventures (https://capitalatlas.ai/funds/zendesk-ventures) — Series D
- British Business Bank (https://capitalatlas.ai/funds/british-business-bank) — Series D