Decagon, headquartered in San Francisco and led by CEO Brian Choi, builds a conversational AI platform that lets brands deploy fully-featured AI concierge agents over voice, chat, email, SMS, and other channels. Its technology is already used by household names in travel and hospitality (Avis, Hertz, Duolingo), financial services (Block, Affirm, Chime), health and wellness (Oura Health, Noom, Eight Sleep), retail (Mercado Libre, 1-800-FLOWERS.COM), and on-demand commerce (Grubhub, GoPuff). The platform focuses on delivering highly personalized, always-available customer support and engagement, positioning itself as a core infrastructure layer for customer experience. With its new capital, Decagon plans to expand operations and accelerate product development to serve a broader range of global enterprises. The January 2026 Series D round values the company at $4.5 billion, underscoring strong investor confidence. While detailed revenue or user metrics were not disclosed, the sizeable valuation and blue-chip customer roster indicate meaningful market traction.

Total raised

$481M

Funding rounds

5

Latest round

Series D

Latest activity

Jan 2026