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PolyAI Raises $86 Million Series D, Lifts Valuation to $750 Million

Investor conviction in PolyAI’s proprietary voice agents will fund platform R&D, go-to-market expansion.

Overview

  • The $86 million round was co-led by Georgian, Hedosophia and Khosla Ventures, with participation from NVentures, British Business Bank, Citi Ventures, Squarepoint Ventures, Sands Capital, Zendesk Ventures and Point72 Ventures.
  • Total funding surpasses $200 million, with proceeds directed to advancing the Agent Studio platform and expanding commercial reach across North America and Europe.
  • PolyAI reports 100+ enterprise customers with over 2,000 live deployments in 45 languages across more than 25 countries, serving clients such as PG&E, UniCredit, Caesars and Golden Nugget.
  • U.K. filings show GAAP revenue rose to $15 million in the 12 months to January 31, 2025, while the CEO said ARR is expected to double to about $40 million and U.S. revenue has nearly tripled.
  • The company builds its own voice AI models rather than relying on providers like OpenAI or ElevenLabs, a stance highlighted as rivals such as Sierra and Decagon attract large financings.