Sierra

New

Conversational AI platform for customer experience

AISeries BEst. 202350–100 employeesSan Francisco

Sierra builds AI agents that handle customer service with empathy, accuracy, and brand voice. Unlike generic chatbots, Sierra's agents are trained on a company's specific policies, products, and tone. Customers include WeightWatchers, Sonos, and SiriusXM. Sierra's agents resolve over 70% of tickets without human escalation.

Total Raised$285M

Sequoia CapitalBenchmarkAndreessen Horowitz

Founders

Bret Taylor

Clay Bavor

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