Will's Blog: Decagon, which offers AI-powered customer service agents, raised a $250M Series D led by Coatue and Index Ventures at a $4.5B valuation, up from $1.5B in June (Shirin Ghaffary/Bloomberg)

28 January 2026

Decagon, which offers AI-powered customer service agents, raised a $250M Series D led by Coatue and Index Ventures at a $4.5B valuation, up from $1.5B in June (Shirin Ghaffary/Bloomberg)

Shirin Ghaffary / Bloomberg:
Decagon, which offers AI-powered customer service agents, raised a $250M Series D led by Coatue and Index Ventures at a $4.5B valuation, up from $1.5B in June — Decagon AI Inc., a customer support startup, has raised $250 million in a new round of funding that triples its valuation to $4.5 billion …

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