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SierraSR
SR

Sierra

New

Conversational AI platform for customer experience

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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

B
Bret Taylor
C
Clay Bavor